Grand Test 4 For NEET 2022

1.When CO₂(g) is passed over red hot coke it partially gets reduced to CO(g). Upon passing 0.5 L of CO₂(g) over red hot coke, the total volume of the gases increased to 700 mL. The composition of the gaseous mixture at STP is:

2.The number of water molecules present in a drop of water (volume 0.0018 mL) at room temperature is

3.The numbers of moles of BaCO₃ which contain 1.5 moles of oxygen atoms is

4.Which element having following electronic configurations has minimum ionization potential?

5.If  and  be threshold wavelength and wavelength of incident light, the velocity of photoelectron ejected from the metal surface is:

6.If the nitrogen atom had electronic configuration  it would have energy lower than that of the normal ground state configuration  because the electrons would be closer to the nucleus.  Yet  is not observed. It violates

7.The first emission line in the atomic spectrum of hydrogen in the Balmer series appears at

8.The pair of amphoteric hydroxides is

9.

The most reactive metal and the least reactive non-metal of these are respectively

10.Ionic radii are

11.Co – Ordinate bond is absent in

12. Fluorine is more electronegative than either boron or phosphorus. What conclusion can be drawn from the fact that  has no dipole moment but PF₃ does

13. Amongst LiCl, RbCl, BeCl₂ and MgCl₂ the compounds with the greatest and the list ionic character, respectively, are

14.If 10⁻⁴ dm³of water is introduced into a 1.0 dm³ flask to 300K, how many moles of water are in the vapour phase when equilibrium is established?
(Given: Vapour pressure of H₂O at 300K is 3170 Pa; R = 8.314JK⁻¹mol⁻¹)

15.0.5 moles of gas A and x moles of gas B exert a pressure of 200 Pa in a  container of volume 10 m³ at 1000 K. Given R is the gas constant in JK⁻¹mol⁻¹, x is:

16.Consider the van der Waals constants, a and b, for the following gases,

GasAr Ne Kr Xe

a/ (atm dm⁶ mol^-2)1.3 0.2 5.1 4.1

b/ (10^-2 dm³ mol^-1) 3.2 1.7 1.0 5.0

Which gas is expected to have the highest critical temperature?

17.For which of the following change ΔH ≠ ΔE?

18.In thermodynamics, a process is called reversible when

19.2 mole of an ideal gas at 27^∘C temperature is expanded reversibly from 2 L to 20 L. Find the entropy change (R = 2 cal/mol K)

20.The reaction 2A(g)+B(g)⇌ 3C(g) + D(g)is begun with the concentrations of A and B both at an initial value of 1.00 M. When equilibrium is reached, the concentration of D is measured and found to be 0.25 M. The value for the equilibrium constant for this reaction is given by the expression

21.The precipitate of CaF₂,(K_sp=1.7×10⁻¹⁰)is obtained, when equal volumes of which of the following are mixed?

22.The pK_a of acetyl salicylic acid (aspirin) is 3.5. The pH of gastric juice in human stomach is about 2-3 and the pH in the small intestine is about 8. Aspirin will be

23.Oxidation number of phosphorus in Ba(H₂​PO₂​)₂​ is ___________.

24.The difference in the oxidation numbers of the two types of sulphur atoms in Na₂​S_4​O₆​ is:

25.Oxidation state of Fe in Fe₃O₄ is

26. Which of the following is the true structure of H₂O₂?

27.Hydrogen peroxide in its reaction with KIO₄ and NH₂OH respectively, is acting as a

28.One mole of magnesium nitride on reaction with an excess of water gives:

29.Calcium is obtained by

30.In curing cement plasters water is sprinkled from time to time. This helps in

31.The main oxides formed on combustion of Li, Na and K in excess of air are, respectively:

32.The metallic sodium dissolves in liquid ammonia to form a deep blue coloured solution. The deep blue colour is due to the formation of 

33. Most stable carbonium ion is:

34.The C−H bond distance is the longest in

35.The number of isomers for the compound with molecular formula C₂BrClFI is

36.Moderate electrical conductivity is shown by

37.H₃BO₃ is

38.The value of n in the molecular formula Be_nAl₂Si₆O₁₈ is

39.Which one of the following alkenes will react faster with H₂ under catalytic hydrogenation conditions? (R = alkyl substituent)

40.Identify a reagent from the following list which can easily distinguish between 1-butyne and 2-butyne

41.On mixing certain alkane with chlorine and irradiating it with ultraviolet light,it forms only one mono-chloroalkane. The alkane is:

42. Which of the following compounds will form significant amount of meta product during mono-nitration reaction?

43.Water samples with BOD values of 4 ppm and 18 ppm, respectively, are

44.Consider the following equilibrium, 

HbO₂+CO⇌HbCO+O₂

 When [HbCO] = 3%, to 4% oxygen carrying capacity of blood is

45.Which of the following is not a consequence of greenhouse effect?

46.A spherical ball of mass 4 kg, moving with 10 m/s, makes a head-on elastic collision with another sphere of mass 12 kg at rest. The speed of the 12 kg bodyis

47.A bullet fired into a fixed target loses half its velocity after penetrating 3 cm. How much further it will penetratebefore coming to rest assuming that it faces constant resistance to motion?

48.You accidentally bump into a bookcase. It tilts briefly but then returns to upright, and you breathe a sigh of relief. When you first bumped the bookcase, its center ofgravity moved

49.Thedisplacementofaparticleofmass1kgonahorizontal smooth surface is a function of time given by x = 1/3 t³

work done by an external agent for first one sec is

50.A solid sphere of mass M and radius R rolls on a horizontal surface without slipping. The ratio of rotational kinetic energy to total kinetic energyis

51.Adiscisrotatingwithanangularvelocityw₀.Aconstant

retarding torque is applied on it to stop the disc. The angular

velocity becomes

(w0 / 2)

after n rotations. How many more

rotations will it make before coming to rest?

52.Angular momentum of the particle rotating with a central force is constant dueto

53. The moment of inertia of a uniform disc about an axis passing through its centre and perpendicular to its plane is1kg m². It is rotating with an angular velocity 100 rad/sec. Another identical disc is gently placed on it so that their centres coincide. Now these two discs together continue to rotateaboutthesameaxis.Thenthelossinkineticenergyin kilojouleis

54.A disc initial at rest, is rotated about its axis with auniform 

angular acceleration. In the first 2s, it rotates an angle the next 2s, the disc rotate through an angle

55.A train has just completed a U-curve in a track which is a semicircle. The engine is at forward end of thesemicircular part of the track while the last carriage is at the rear end of the semi-circular track. The driver blows a whistle of frequency 200Hz. Velocity of sound is 340 m/s. Then the apparent frequency as observed by a passenger in the middle of the train, when the need of the train is 30 m/sis

56. The speed of sound through oxygen at T K is (300 m/s). When the temperature is increased to 3T, the molecule dissociates into oxygen atom, now the speed of soundwill be

57.An accurate and reliable audio oscillator is used to standardize a tuning fork. When the oscillator reading is 514, two beats are heard per second. When the oscillator reading is 510, the beat frequency is 6 Hz. The frequency of the tuning forkis

58.If x =asin [wt+ (p/3)] and x¢=acoswt, thenwhat is the phase difference between twowaves?

59.Jar A filled with gas characterized by parameter P,V andT and another jar B filled with a gas with parameter 2P, V/4 and 2T. The ratio of the number of molecules in jar A to those in jar Bis-

60.The internal energy of monatomic and diatomic gases are respectively dueto

61.When an ideal diatomic gas is heated at constant pressure, the fraction of the heat energy supplied which increasesthe internal energy of the gasis

62.RMS velocity of an ideal gas at 27°C is 500 m/s. Temperature is increased four times, rms velocitywill become –

63.Let V denote the root mean square speed of themolecules in an ideal diatomic gas at absolute temperature T. The mass of a molecule is ‘m’. Neglecting vibrational energy terms, which isfalse?

64.Molecule of a gas can be modelled as three sphere connected through three rigid rods as to make triangle like structure. A gas containing such molecules performs 25 J of work when it expands at constant pressure. Heat given to gas is–

65. In a process the density of gas remain constant. If the temperature is doubled, then the change in the pressure will be

66.A gas mixture consists of 2 moles of oxygen and 4 moles of a argon at temperature T. Neglecting all vibrational modes, the total internal energy of the system is–

67.The resultantofthetwovectors having magnitude 2 and 3 is

1.What is the magnitude of their cross product

68.A vector A points vertically upward and B points towards

north. The vector product A´B is

69.Vector A is 2 cm long and is 60º above the x-axis in thefirst quadrant. Vector B is 2 cm long and 60º below the x-axis in the fourth quadrant. The sum A + Bis a vector of magnitude

70. A body is projected with kinetic energy K at an angle of 60º with the horizontal. Its kinetic energy at the highest point of its trajectory will be

71.Velocity of a stone projected, 2 second before it reachesthe maximum height, makes angle 53° with the horizontal then the velocity at highest point will be

72.An astronaut in a strange planet observer that he can jump a maximum horizontal distance of 2m, if his initial speed is 6 m/s. What is the acceleration due to gravity of theplanet?

73.The linear momentum of a particle varies with time tas

p=a +bt+ct²

Which of the following statements is correct?

74.The force exerted by the floor of an elevator on the footof a person standing there is more than the weight of the person if the elevatoris

A.going up and slowingdown

B.going up and speedingup

C.going down and slowingdown

D.going down and speedingup

75.A bullet moving with a velocity of 100 m/s can just penetrate two planks of equal thickness. The numberof such planks penetrated by the same bullet, when the velocity is doubled, will be

76.If the force on a rocket moving with a velocity of 300m/s is 210 N, then rate of combustion of fuelis

77.A small satellite is revolving near earth’s surface. Itsorbital velocity will benearly

78.A Geostationary satellite is revolving around the earth. To make it escape from gravitational field of earth, itsvelocity must beincreased

79. If the radius of earth were shrink by 1%, its mass remaining the same, the acceleration due to gravity on the earth’s surfacewould

80.A comet travels around the sun in elliptical orbit. It’smass

is10⁸ kg when away its speed is 2 *10⁴ms^–1. Find the change in

KE when it has reached

5´*10¹⁰m

Away from the sun

81.If the radius of the earth becomes half of its present value (mass remaining the same), the new length of the day would be

82.A ball falling in a lake of 200 m shows a decrease of0.1% in its volume. The Bulk modulus of elasticity of the material of the ball is-

(take g =10 m/s²)

83.A uniform cube is subjected to volume compression. If each side is decreased by 1.5%, then bulk strainis

84.A vessel contains oil (density = 0.8 gm/cm³) over mercury (density = 13.6 gm/cm³). A homogeneous sphere floatswith half of its volume immersed in mercury and the other half in oil. The density of the material of the sphere in gm/cm³ is

85.The Poisson’s ratio of a material is 0.20. If a longitudinal strain of 4 × 10–3 is caused, by what percentage will the volume change?

86.A particle executes SHM along a straight line so that its period is 12s. The time it takes in traversing a distance equal to half its amplitude from its equilibrium position is-

87.The amplitude and time period in SHM are 0.8 cm and 0.2 sec respectively. If the initial phase is p/2 radian, then the equation representing SHM is-

88.A horizontal platform with an object placed on it is executing SHM in the vertical direction. The amplitude of oscillation is 2.5 cm. What must be the least period of these oscillations so that the object is not detached-

89.Two balls X and Y are thrown from top of tower one vertically upward and other vertically downward with same speed. If time taken by them to reach the ground is 6 sec and 2 sec respectively, then the height of the tower and initial speed of each ball are (g = 10m/s2)

90.A man in a balloon rising vertically with an acceleration of

4.9 m/sec2 releases a ball 2 sec after the balloon is let go from the ground. The greatest height above the ground reached by the ball is (g = 9.8 m/sec2)

91.Taxonomic Hierarchy is maintained in the following,

92.Information about a particular taxon can be directly derived from

93.The five kingdom system considers

94. Extensive metabolic diversity can be found in all except

95.The cell walls of diatoms consist

96.Common feature of phycomyecetes is

97.Which one is true?

98.Assertion: the floral formula of the Solanacae family is

Reason:. This floral formula tells that the flower is bisexual, sepals five, petals five, stamens five, gynocium tricarpally with many ovules

99.The ovary is inferior when,

A.The parts of the flower located on the rim of the thalamus

B.The thalamus grows upward and fused with ovary

C.The other parts of flower arise above the ovary

D.The gynocium is situated in the centre.

100.False septum is formed in

101.

Match the following-

102.

The correct growth order is

103.The membrane of erythrocytes have approximately

104.Which statement is INCORRECT?

105.Name the vesicle contains various enzymes in plants and animals

106.Plant cell need aquaporin because

1.The water is polar in nature

2.It is a major intrinsic protein

3.To maintain the active transport mechanism

4.To maintain the water balance

 107.Bulk movement of substances through conducting tissue is called

108.When water enters three  phenomenon take place

A.Pressure potential increases

B.Solute potential decreases

C.Overall water potential increases

109.Chlorotic veins are typical feature of 

110.The following statement is true Except

111.Chemotrophs are

112.The visible product of photosynthesis is

113.Oxygen evolving complex, involve in photolysis of water contains

114.In the presence of light pH of the lumen of thylakoid 

115. Photooxidation of chlorophyll is prevented by

116.Name a plant which do not perform photosynthesis is

117.The two photosystem-I and II during non-cyclic photophosphorylation acts in 

118. Ferredoxin is a constituent of 

 119.In ATP synthase F0 acts as

120.Match the list 1 and 2

121.In vascular plants most cytokinins are produced in the 

122.The accumulation of one of the following causes seed dormancy

123.Match the list

124.Nyctinasty occurs due to 

125.How would phototropism be beneficial to plants?

126.

The figure shows

127. During Anaphase-II 

 128.Which of the following statements about the Histone is not true

129.The kinetochores

130.You would be unlikely to see which of the following human cells dividing?

131.Centromere is required for 

132.In which one pair both the plants can be vegetatively propagated by leaf pieces?

133.The osmotic expansion of a cell kept in water is regulated by

134.Pollen tablets are used for 

135.When the margins of sepals or petals overlap one another without any particular direction, the condition termed

136. Instead of a coelom, arthropods have a modified coelom, called what?

137. Statocysts are present in, choose the correct option

A. Lacifer

B. Nereis

C. Sepia

D. Limulus

138. Food is processed in porifera through

139.

Advantages of this circulatory system is,

140.The cornea that forms the transparent front surface of the eye is organized into

141.

The above figure depicts

A.A is associated with this tissue

B.B is typical characteristics of this tissue

C.C is abundant in this tissue

D.Tissue is attached to semi-fluid ground substance

142. Excretory product of Periplaneta is

143.Ovaries of female Periplaneta lies

144.Assertion: Periplaneta is a nocturnal pest

Reason: They prefer moist area

145.Cells with abundant apical microvilli are characteristically found in

146.The linkage present in cellulose molecule

147. which of the following statements about protein secondary structure is Correct?

148. In all enzymes the active site 

149.Amino transferases

150.When substance A is added to an enzyme reaction,product formation is decreased. The addition of more substrate did not increase product formation.The substance A is

151.One way in which a cell maintains metabolic disequillibrium is to 

152.Enzyme action is best measured by noting the 

153. of the following statementvabout enzyme which one is true

1. Enzyme lack the nuleophile group
2. Enzymes are highly specific
3. Enzymes catalyse chemical reactions by lowering the activation energy
4. Pepsin is a proteolytic enzyme

154.Specificity of enzyme depends upon

155.The transport system that maintains the Na+ and K+ gradients across the plasma membrane

156.Which one of the following is without co-enzyme activity

157.Which one of the following fixes CO2 to carbohydrates

158.The most active site of protein synthesis is 

159.At equillibrium

160.Which of the following is located in the mitochondria

161.The ……….is a structure specialised for diffusion of gases and nutrients between the blood of the mother and fetus

162.Aerobic respiration of one glucose produces

163.Fluid is moved back into the capillaries at the downstream end of the capillary bed by

164.After a meal of greasy french fries,which hormones andenzymes would you expect to the most active

165.Aunt Rose had her Gall bladder removed and afterward

166.How does gastrovascular cavity differ fron an elimentary canal? The gastrovascular cavity

167.Which of the following is not a common component of faeces

168.Match the correct pair

169.Transport epithelia are responsible for

170.A deficiency of albumin would result in

171.Rhythmic streching of arteris caused by heart contractions is called

172.Assertion: A recording of electrical activity of apatients heart shows that tge atria are contracting regularly and normally but every few beats the ventricles fail to contract.

Reason: AV node is not functioning properly

173.Excessively high HR will cause Pr interval to ………., ventricular filltime to ………..,EDV to …………..,preload to ………….,and SV to ……………

174.If cells are not receiving enough oxygen a hormon signals the bone marrow to produce to more

175.Parkinson’s disease in humans is associated with the deficiency of:

176.

Which statement is true about the regarding phenomenon happening in the above figure

177.The amount of sarcoplasmic reticulum is high in

178.All are true except

179.The parasympathetic nervous system is not related to

180.The part lebelled 3 secrets-