GRAND TEST 2 for NEET 2022

1.The Densities of two gases are in the ratio 1 : 2 and their temperatures are in the ratio 2 : 1, then the ratio of their respective pressures is

2.In a closed flask of 5 litres, 1.0 g of H₂ is heated from 300 to 600 K. which statement is not correct

3.The Van der Waal’s parameters for gases W, X, Y and Z are

      Which one of these gases has the highest critical temperature

4.At 27^oC, the ratio of rms velocities of ozone to oxygen is           

5.A schematic plot of lnK_eq versus inverse of temperature for a reaction is

shown below 

6.The free energy change for the following reactions are given below, 

C₂H₂(g)+  O₂(g) → 2CO₂(g)+H₂O(l); ΔG_o = −1234 kJ

C(s)+O₂(g) → CO₂(g); ΔG_o = −394 kJ

H₂(g)+  O₂(g) → H₂O(l); ΔG_o = −237 kJ

What is the standard free energy change for the reaction 

H₂(g) + 2C(s) → C₂H₂ (g)

7. 9.0 g of H₂O is vaporised at 100^oC and 1 atm pressure. If the latent heat of vaporisation of water is x J/g, then ΔS is given by

8.The difference between heats of reaction at constant pressure and at constant volume for the reaction 

2C₆H₆(l) + 15O₂(g) → 12CO₂(g) + 6H₂O(l) at 25^oC in kJ is

9. For the equilibrium 

2NO₂(g) ⇌ N₂O₄(g) + 14.6 kcal

the increase in temperature would 

10.The solubility product of a salt having general formula MX₂ in water is: 

4 × 10⁻¹². The concentration of M²⁺ ions in the aqueous solution of the salt is   

11. In which of the following equilibria, the value of K_p is less than K_c

12. One mole of a compound AB reacts with one mole of a compound CD according to the equation AB + CD ⇌ AD + CB.  When equilibrium had been established it was found that ¾ mole each of reactant AB and CD had been converted to AD and CB. There is no change in volume. The equilibrium constant for the reaction is

13. The dissociation constant of an acid HA is 1×10⁻⁵. The pH of 0.1 molar solution of the acid will be

14.Carbon has zero oxidation number in                

15.In alkaline medium ClO₂ oxidize H₂O₂ in O₂ and reduced itself in   then how many mole of H₂O₂ will oxidize by one mole of  ClO₂       

16.For the redox reaction 

Mn + C₂  + H⁺→ + CO₂ + H₂

the correct coefficients of the reactants for the balanced reaction are   

                Mn                    C₂                         H⁺

17.The compound which could not act both as oxidising as well as reducing agent is              

18.Which of the following can adsorb largest volume of hydrogen gas

19. Match list I with list II and select the correct answer using the codes given below the lists

20.There is a sample of 10 volume of hydrogen peroxide solution. Calculate its strength

21.H₂O₂ is manufactured these days

 22.Na₂CO₃ can be manufactured by Solvey’s process but K₂CO₃

cannot be prepared because    

23.Which of the following properties is not true for an alkali metal

24.The atomic radii of alkali metals (M) lie in the order Li<Na<K<Rb but the radii of   ions in aqueous solution lie in the reverse order > > > . What is the reason for this reverse order (on going from Li to Rb

25.Setting of cement is an

26.Metallic magnesium is prepared by

27.The type of hybridisation of boron in diborane is

28.Which of the following is known as inorganic benzene

29.AlCl₃ is

30.When carbon monoxide is passed over solid caustic soda heated to 

200^oC, it forms

31.Soldiers of Napoleon army while at Alps during freezing winter suffered a serious problem as regards to the tin buttons of their uniforms. White metallic tin buttons got converted to grey powder. This transformation is related to

32.The IUPAC name of 

CH₃−CH₂CH=CCH₂OH

                          |

                          CH3

will be

33. 1.029 g of an organic compound on boiling with NaOH liberates some NH₃, the complete neutralisation of which  requires 14 ml of N/2

H₂SO₄ . Percentage of nitrogen is

34.How many isomers of C₅H₁₁OH will be primary alcohols

35.Polarisation of electrons in acrolein may be written as

36.During hearing of a court case, the judge suspected that some changes in the documents had been carried out. He asked the forensic department to check the ink used at two different places. According to you which technique can give the best results?

37.The decreasing order of boiling points is

38. 1,3-butadiene reacts with ethylene to form

39.Identify the product D in the following series of reaction

40.The attacking (electrophilic) species in sulphonation of benzene is

41.Among the following statements on the nitration of aromatic compounds, the false one is

42.Which of the following statements is wrong?

43.Which of the following acts as a sink for CO?

44.Soil is polluted by

Choose the correct option:

45. Phosphate fertilizers when added to water leads to

46.Three-point masses ‘m’ each, are placed at the vertices of an equilateral triangle of side a. Moment of inertia of the system about axis COD is-

47.One solid sphere A and another hollow sphere B are of same mass and same outer radii. Their moment of inertia about their diameters are respectively I_A and I_B such that

48.If the linear momentum is increased by 50%, the kinetic energy will increase by

49.A bullet of mass 5 g is fired at a velocity of 900 ms−1 from a rifle of mass 2.5 kg.  What is the recoil velocity of the rifle?

50.A man is sitting on a rotating table with his arms stretched outwards.  When he suddenly folds his arms inside, then

51.The acceleration due to gravity at a height 1km above the earth is the same as at a depth d below the surface of earth. Then 

52.Kepler’s third law states that square of period of revolution (T) of a planet around the sun, is proportional to third power of average distance r between the sun and planet i.e. T²=Kr^3, here K is constant. If the masses of the sun and planet are M and m respectively, then as per Newton’s law of gravitation force of attraction between them is F=GMm/r², here G is gravitational constant. The relation between G and K is described as

53.A satellite S is moving in an elliptical orbit around the earth. The mass of the satellite is very small as compared to the mass of the earth. Then,

54.Infinite number of bodies, each of mass 2 kg are situated on x-axis at distance 1m, 2m, 4m, 8m, respectively from the origin. The resulting gravitational potential due to this system at the origin will be

55.The height at which the weight of a body becomes 1/16th, its weight on the surface of earth(radius R), is

56.

Three wires A,B,C made of the same material and radius have different lengths. The graphs in the figure show the elongation-load variation. The longest wire is 

57.The breaking stress of a wire depends upon

58.The bulk modulus of a spherical object is B. If it is subjected to uniform pressure p, the fractional decrease in radius is 

59.The Young’s modulus of steel is twice that of brass. Two wires of same length and of same area of cross-section, one of steel and another of brass are suspended from the same roof. If we want the lower ends of the wires to be at the same level, then the weight added to the steel and brass wires must be in the ratio of

60.The following four wires are made of the same material. Which of them will have the largest extension when the same tension is applied?

61.When a certain weight is suspended from a long uniform wire, its length increases by one cm. If the same weight is suspended from another wire of the same material and length but having a diameter half of the first one then the increase in length will be –

62.The radius of a soap bubble is increased from R to 2 R. Work done in this process (T = surface tension) is

63. A small spherical solid ball is dropped in a viscous liquid. Its journey in the liquid is best described in the figure by :

64.The area of cross-section of the wider tube shown in the figure is 800 cm^2. If a mass of 12 kg is placed on the massless piston, the difference is heights h in the level of water in the two tubes is:

65.The weight of an aero plane flying in the air is balanced by 

66.Water rises to a height h in capillary tube . If the length of capillary tube above the surface of water is made less than h, then

67. The wettability of a surface by a liquid depends primarily on

68.Which one of the following is νM​−T graph for perfectly black body? νm is is the frequency of radiation with maximum intensity. T is the absolute temperature

69.Heat capacity is equal to the product of:

70. Hot water cools from 60°C to 50° in first 10 minutes and from 50°C to 42°C in next 10 minutes. The temperature of surrounding is:

71.A spherical black body with a radius of 12cm radiates 450-watt power at 500 K. If the radiuses were halved and the temperature doubled, the power radiated in watt would be:

72.A piece of ice falls from a height h so that it melts completely. Only one-quarter of the heat produced is absorbed by the ice and all energy of ice gets converted into heat during its fall. The value of h is [Latent heat of ice is 3.4×10⁵J/Kg and g=10N/Kg]

73.The two ends of a metal rod are maintained at temperatures 100°C and 110°C. The rate of heat flow in the rod is found to be 4.0 J/s. If the ends are maintained at temperatures 200°C and 210°C, the rate of heat flow will be

74.The value of coefficient of volume expansion of glycerin is 5×10^-4 K^-1. The fractional change in the density of glycerin for a rise of 40°C in its temperature is –

75.Change in enthalpy for reaction,

2H₂O₂(l)→→ 2H₂O(l) + O₂(g)

if the heat of formation of H₂O₂(l) and H₂O(l) are -188 and -286 kJ/mol respectively is           

76.At absolute zero, the entropy of a perfect crystal is zero. This is……….. of thermodynamics.

77.The work done by a mass less piston in causing an expansion ΔV (at constant temperature), when the opposing pressure, P is variable, is given by:

78.Entropy decreases during:

79. If S° for H₂, Cl₂ and HCl are 0.13, 0.22 and 0.19 kJ K^-1mol^-1 respectively. The total change in standard entropy for the reaction, H₂ + Cl₂ →→2HCl is:

80.If 50 calorie are added to a system and system does work of 30 calorie on surroundings, the change in internal energy of system is:

81. The internal energy change when a system goes from state A to B is 40 kJ/mol. If the system goes from A to B by a reversible path and returns to state A by an irreversible path. What would be the change in internal energy?

82. A diatomic molecule has how many degrees of freedom

83.For a gas, the r.m.s speed at 800 K is:

84. Five molecules of a gas have speeds, 1, 2, 3, 4 and 5 kms−1.  The value of the root mean square speed of the gas molecules is:

85.The average kinetic energy of a gas molecule can be determined by knowing:                                       

86.When two displacements represented by y₁=asin(ωt) and y₂=bcos(ωt) are superimposed, the motion is –

87.The period of oscillation of a mass M suspended from a spring of negligible mass is T. If along with it another mass M is also suspended, the period of oscillation will now be

88.The longitudinal waves can travel :

89.Eleven tuning forks are arranged in increasing order of frequency in such a way that any two consecutive tunning forks produces 4 beats per second. The highest frequency is twice that of the lowest. The frequency is twice that of the lowest. The highest and the lowest frequencies (in Hz) are respectively

90.When a sound wave travels from one medium to another, the quantity that remains unchanged is :

91.Match the columns

Column I                   Column II

a.  Choanocytes      1.Platyhelminthes

b.  Cnidoblasts         2.Ctenophora

c.   Flame cells           3. Porifera

d.   Nephridia             4. Lasso cell

e.   Comb plates        5.   Annelida A

92.Select the wrong statements-

93.which one of the following groups belong to a single taxonomic group?

94.Which of the following statement is incorrect?

95.Match the columns

Column I                                Column II

a. Organ Level                         1.Pheretima

b. Cellular aggregate Level    2.  Fasciola

c. Tissue level                            3. Spongilla

d.Organ System Level              4.Obelia

96.Match the name of the animal (Column I) with one characteristic (column-

6. II) and the phylum/class(column-III) to which it belongs

97.Which one of the following phyla is correctly matched with its general characteristics?

98.How many of them are correct statement regarding Osteichthyes -?

1. Mesonephric kidneys and mainly
2. Four pairs of gills covered by operculum
3. Mouth is ventrally
4. Swim bladder is present which regulate buoyancy

99.Which one of the following features is common in silverfish, scorpion, dragonfly and prawn?

100.All of the following are true regarding bird except one. Mark it

101.The characters which help the reptiles in leading successful land life EXCEPT

102.Correct feature about                    aves-

103.Unsegmented worm like body, triploblastic nature of body wall, well developed muscular pharynx complete alimentary canal and bilateral symmetry are the characteristic features of which phylum?

104.All of the following are characters of Urochordates except

105.Which one of the following is not a mammalian character?

106.Select the matching of animals, their symmetry, organization and coelom type respectively

107.Assertion: Sponges have body organization of “cellular level”. Reason: There is some physiological division of labour.

108.Choose the correct match.

109.Which one of the following sets of animals belong to a single taxonomic group?

110.An exclusively marine animal in its adult stage secondarily acquires radial symmetry when its bilaterally symmetrical larva undergoes metamorphosis. Identify the animal

111.The open type of blood vascular system in cockroach

112.The characteristic features of leeches are all Except one.

113.Mark the correct statement w.r.t. Platyhelminthes

114.The terms “ammonotelic”, “Ureotelic”, and “Uricotelic” are used to describe-

115.Match the columns

Column I                                                      Column II

a. Many bony fishes, aquatic amphibians  1.Ureotelic and aquatic insects

b.Mammals, many terrestrial amphibians 2. Ammonotelic and marine fishes mainly

c.Reptiles, birds, land snails and insects     3. Uricotelic Excrete

116.Find the wrong match

117.Which of the following is wrong regarding the function of the excretory organ?

118.

Human urinary system select the correct match regarding this marked

structure A,B,C and D

119.

Select the false match regarding this figure?

120.Which of the following statements is false?

121.Match column I with column II –

Column I                                         Column II

A PCT                                         I. Concentrated urine formation

B.DCT                                         II. Filtration of blood

C.Loop of Henle                        III.  Reabsorption of 70 – 80% electrolytes

D.Counter- current mechanism  IV.Ionic balance

E.Renal corpuscle                        V.Maintenance of conc. Gradient in medulla

122.The layers between the blood in glomerular blood Bowman’s space are made up of

123.A comparison of the volume of the filtrate formed per day ( _A                                                                       litres per day) with that of the urine released (__B                                                                     litres), suggest that nearly

    C         per cent of the filtrate has to be excreted by kidney. A, B and C are respectively

124.Which of the following events does not occur in case of a fall in glomerular blood flow?

125.Juxtaglomerular apparatus is a mechanism for the autoregulation of glomerular filtration It is formed by cellular modifications in

                   at the location of their contact

126.In  the  given  diagram what would be the value of osmolality of fluid at points A and B respectively?

127.Which one of following correctly explains the function of a specific part of a human nephron?

128.Which one of the following statements is correct with respect to kidney function regulation?

129.Hormones that cause vasodilation of afferent arteriole and vasoconstriction of efferent arteriole

130.Consider the following

Mark the  correct options

a.Release of aldosterone from adrenal gland

b.Absorption of more Na+ and water from DCT

c.Release of renin from JG cells

d.Conversion of angiotensinogen to angiotensin II

Select the proper sequence of event taking place during operation of RAAS

131.Which part of nephron is impermeable to water but permeable to K+, Cl– and Na+ and partially permeable to urea?

132.An adult human, on an average excretes 1 to 1.5 liters of urine per day. The total amount of urea excreted per day out in this process is approximately

133.Find the wrong statement from the following?

134.Presence of ketone bodies in urine is an indicative of

135. fight or flight response in the body is controlled by the

136.Which types of Neuron is found in Cerebral Cortex?

137.Which of the following nitrogenous waste is excreted in form of pellets or paste?

138.Find the wrong statement from the following-

139.Which of the following increases when an action potential is initiated?

140.When a stimulus is applied at a site on the polarized membrane, the membrane at that site becomes freely permeable to It causes rapid influx of              ions leading         of the membrane –

141.Which of the following statements is false about the electrical synapse?

I.At electrical synapses, the membranes of pre and post synaptic neurons are in very close proximity

II.Electrical current can flow directly from one neuron into the other across the synapses

III.Transmission of an impulse across electrical synapses is very similar to impulse conduction along single

IV.Electrical synapses pass electrical signal between cells with the use of Ach

V.Electrical synapses are fast

VI.Electrical synapses are rare in our system

142.Five events in the transmission of nerve impulse across the synapse –

a.   Opening of specific ion channels allows the entry of ions, a new action potential is generated in the post-synaptic

b.  Neurotransmitter binds to the receptor on post synaptic membrane

c.   Synaptic vesicle fuses with pre-synaptic membrane, neurotransmitter releases into synaptic

d.  Depolarization of pre-synaptic membrane

e.  Arrival of action potential at axon In which sequence do these events occur?

143.Myelinated fibers of the tract forms –

144.Hypothalamus does not control –

145.Different components of reflex arc are given below

I. Effector organ

II.  Interneuron Ill. Motor neuron

IV. Sensory neuron

V. Sensory receptor

Choose the correct order an action potential follows after a sensory receptor is stimulated –

146.Which of the following is false regarding small marked structure ‘A’

147.

Which of the following is function of the marked structure ‘A’

148.

Marked structure ‘A’ connects

149.Read the following statements and choose the correct

Statement A – The space between the lens and the retina is called vitreous chamber.

Statement B – Vitreous chamber contains a thin watery fluid which is synthesized regularly

150.

Structure given above is a diagrammatic representation of sectional view of cochlea. Read the following paragraph carefully The eardrum vibrates in response to sound waves and these vibrations are transmitted through ear ossicles to oval window which are transferred to the fluid of cochlea, where they generate waves in lymph’s. The waves in the lymph induce a ripple in the         (i)       . The movement of the        (ii)          bend the hair cells, pressing them against the               iii      . Choose the option which correctly fills the graph w.r.t. labelled structures in diagram.

151.Three layers of cells in retina from inside to outside are_:

152.Which one of the following is correct r.t. travelling of sound in ear?

153.Which of the following statements is false about cones?

I. The daylight (photopic) vision and colour vision are function of cones

II. In human eye, there are three types of cones having characteristic photo pigments that respond to red, green and blue light

III.  The sensations of different colors are produced by various combination of these 3 types of cones

IV.  When these 3 types of cones are stimulated equally, a sensation of white light is

154.Component absent in limbic system is

155.During depolarization there is

156.Which of the following statement is correct?

157.Eustachian tube connects-

158.Scala vestibule, Scala media and Scala tympani contain –

159.Which of the following statements about hormones is/are correct

I.  Hormones are non-nutrient chemicals

II. Hormones act as intercellular messengers

III.  Hormones are produced in trace amount

IV.  Hormones may be proteins, steroids, glycoproteins and biogenic amines

160.Which of the following options is false?

161.Anterior lobe of Pituitary gland secretes –

I. FSH, GH and LH

II. GH, TSH and prolactin

III.  TSH, ADH & prolactin

IV. ACTH, TSH and oxytocin

162.Which of the following statements is correct about oxytocin?

163.Which one of the following pairs of organs includes only the endocrine glands?

164.In humans, parathyroid glands are present on side of                               

gland –

165.Which of the following hormones produces anti-inflammatory reactions, suppresses immune response, stimulates RBC production, and is also involved in maintaining cardiovascular system and kidney functions?

166.Both adrenaline and cortisol are secreted in response to Which of the following statement is also true for both of these hormones?

167.Following are the examples of secondary messengers except

168.Hormone which increases the concentration of calcium ions in the blood plasma by mobilising more calcium from bones to the It is released from

169.Select the incorrect match

170.

Which of the following hormone acts by the given mechanism?

171. Select the incorrect statement w.r.t. ADH

172.Identify the hormone with its correct matching of source and function :

173.In the dicot root the vascular cambium originates from –

174.Regeneration of damaged growing grass following grazing is largely due to :

175.Which of the following is correct r.t. dicot leaf

176.Which of the following is not related with dicot stem?

177.Which of the statements given below is not true about formation of Annual Rings in trees?

178.Grass leaves curl inwards during very dry Select the most appropriate reason from the following :

179.Cambium (vascular)

180.The youngest layer of secondary xylem lies