1.In which case is number of molecules of water maximum?

2.The molarity of a solution obtained by mixing 750mL of 0.5 M HCl with 250 mL of 2 M HCl will be

3.The impure  6g of NaCl is dissolved in water and then treated with excess of silver nitrate  solution. The mass of precipitate of silver chloride is found to be 14 g. The % purity of NaCl solution would be :

4.Which of the following is dependent on temperature?

5.Which of the following set of quantum numbers shows orbital of highest energy?

6.The angular momentum of an electron in a Bohr’s orbit  of He⁺ is 3.1652×10^-34 kg –m²/sec. What is the wave number in terms of Rydberg constant (R) of the spectral line emitted when an electron falls from this level to the first excited state [h=6.626*10^-34 J.s]

7.The mass of a particle is 10^-10 g and its radius is 2×10^-4 cm. If its velocity is 10^-6 cm sec^-1 with 0.0001% uncertainty in measurement, the uncertainty in its position is:

8.Which is the correct order of increasing energy of the listed orbitals in the atom of titanium?

(At .no Z=22)

9.Magnesium reacts with an element (X) to form an ionic compound .If the ground state electronic configuration  of (X) is 1s²2s²2p³,the simplest formula for this compound is

10.Which of the following represents the correct order of increasing first ionization enthalpy for Ca, Ba ,S ,Se and Ar?

11.An element X belongs to fourth period and fifteenth group of  the periodic table. Which of the following statement is true?

12.Consider the following species: CN⁺,CN^–,NO and CN. Which one of these will have the highest bond order?

13.Select the correct statement:

14.Which of the following  molecular species is not linear?

15.Which of the following compounds have the same no of lone pairs with their central atom?

(I) XeF₅^–      (II) BrF₃               (III) XeF₂    (IV) H₃S⁺     (v) Triplet Methylene

16.Among CaH₂,BeH_2,BaH_2, the order of ionic character is

17.The correction factor ‘a’ to the ideal gas equation corresponds to

18.At what temperature most probable speed of SO₂ molecules have the same value as root mean square speed of O₂ molecules at 300 k?

19.The correct thermodynamic conditions for the spontaneous reaction at all temperatures is

20. 5 mole of an ideal gas expand isothermally and irreversibly from a pressure of 10 atm to 1 atm against a constant external pressure of 1 atm. W_irr at 300 k is :

21.The heat of combustion of carbon to CO₂ is -393.5kJ/mol. The heat released for the formation of 35.2 g of CO₂ from carbon and oxygen is :

22.The bond dissociation energies  of X₂,Y₂ and XY are in the ratio of 1:0.5:1. ΔH for the formation of XY is -200kJ/mol. The bond dissociation energies of X₂ will be

23.Concentration of the Ag⁺ ions in a saturated solution of Ag₂C₂O₄ is 2.2×10^-4 mol/L. Solubility product of Ag₂C₂O₄ is

24.Which of the following statement is not correct?

25.Which of the following conditions will favour maximum formation of the product in the reaction

26.In acidic medium,H₂O₂ changes Cr₂O₇^2- to CrO₅ which has two (-O-O-) bonds. Oxidation state of Cr in CrO₅ is

27.For the redox reaction :

xMnO₄^– + yH₂C₂O₄ + zH⁺à mMn²⁺+nCO₂+pH₂O

The values of x,y ,m and n are

28.The strength of 10 vol.H₂O₂ solution is

29.Permanent hardness of water is due to the presence of

30.The salt of an alkali metal gives yellow colour in the flame test. Also its aqueous solution gives an insoluble white precipitate with barium chloride in acidic medium. The salt is

31. Choose the incorrect statement in the following

32.The correct statement(s) among I to III with respect to potassium ions that are abundant within the cell fluids is /are

I.They activate many enzymes

II.They participate in the oxidation of glucose to produce ATP.

III. Along with sodium ions, they are responsible for the transmission of nerve signals.

33.The straight chain polymer is formed by

34.  Which is the correct order of decreasing acidity of lewis acids?

35.In diborane (B₂H₆) ,there are

36.The basic structural unit in silicates is

37.Which of the following element is unable to form MF₆^3- ion?

38. Which of the following is correct with respect to –I effect of the substituents ? (R=alkyl)

39. In allene (C₃H₄)n,the type (s ) of hybridization of the carbon atoms is (are)

40.Which of the following is the correct IUPAC name?

41.Which of the following compounds will exhibit geometrical isomerism?

42.When but-2-yne is treated with Na in liquid ammonia

43.The correct statement regarding the comparison of staggered and eclipsed conformations of ethane ,is

44.When 3-phenylpropene reacts with HBr in the presence of peroxide, the major product formed is

45.Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and human activity?

46.Systematics takes into account 

47. Study the following statements(A-D) given below and select the two correct out of them 

A. Definition of biological species was given by Ernst Mayr

B. An isolated metabolic reaction outside the body of an organism, performed in vitro is neither living nor non-living

C. Selective epithet was introduced by R.H. Whittaker

D. Properties of tissues not lie within the constituent of cells rather they are the result of the interactions.

E. The two correct statements are,

48. Match the column I with the Column II

Column-I                               Column-II

A.   Family                            i. Angiosperme

B. Order                                ii. Monocotyldonae

C.Class                                  iii. Poacae

D. Phylum                             iv.Poales

49.Genus  is

50. Botanical gardens are specialised gardens which keep collections of living plant by indicating its

51.Which statement is correct for Taxonomical aids

52.The bacteria of a marshy land can produce large amount of 

53.Heterocysts are basically Specialised cells directed to

54.A true bacteria will always show some typical characteristics

Choose the two correct statements

A.They can synthesise their own food from nitrate

B.They come up with cell wall, membranous organelles and genetic material

C.They can survive in any extreme condition

D.Rigid cell wall and flagellum are common among them

55.Diatomous earth is created by 

56.Plasmogamy is carried out by those except

57.Altarnaria is an imperfect fungi because

58.Choose the wrong statement

59.Thermoacidophiles differ from Chemosynthetic autotrophs in

60. Cyanobacteria can produce food by photosynthesis because they have

61.Decomposers are exclusively

62.Both the photosynthetic and heterotrophic phase are used alternatively by

63.Sporozoans are included in

64.Viroids are

65.Potato spindle tuber disease can caused by an infectious agent which lack

66.In this figure A

67.In which kingdom archea and nitrogen fixing organism will be placed together

68.We can distinguish Gelidium from Chlorella through cell’s chemical constituent by studying

69.Hydrocolloids are product of

70.Phacophyceae are devoid of

71.Floridian starch is very much similar to

72. Amphibians of plant kingdom are

73.Archaegonia of gymnosperms are basically

74.If synergids and antipodals do not degenerate which event will not proceed?

75.In canna the following symmetry has been observed

76.A floral diagram provides

77.

What is wrong statement regarding this figure

78.Among china rose, mustard, brinjal, potato, guava, cucumber, onion and tulip how many plants have superior ovary?

79.

This is a floral formula of

80.The function of the mentioned diagram is to

81.All tissues constitute ground tissue except

82.Consider the following four statements, i, ii, iii, iv and select the right opinion for two correct answers

i. The floral formula of Lilliceae is

1. 
2.  
3.  
4.  
5. ii.Solanacea are the large family commonly found in small trees

• iii.The floral formula of Fabaceae is
• 
•  
•  
•  
•  
•  
• iv.The fruit of Fabaceae family is non-endospermic

83.Typical feature of conjoint vascular bundle is

84.Epiblema is

85.DNA Fragments are

86.Assertion: According to widely accepted fluid-mosaic model cell membrane are semifluid, where lipids are integrated proteins can randomly diffuse. In recent years this model has been modified in several respects

Reason: Proteins can undergo flip-flop movement within the lipid bilayer

87.A plant hormone is

88.Meiosis in the sporophyte stage of the plant life cycle provides……i…….. Cells called…..ii……

89.A physiological response to the duration of light and darkness is a

90.Which one of the following elements is not an essential micronutrient  for plant growth?

91.The largest phylum of animal possess all except

92.Which one of the following is not a characteristic of phylum Arthropoda

93.Which of the following pairs correctly matched

Animals                            Morphological Features

A. Obelia                    i.  Central gastro vascular cavity

B. Sycon                     ii. Collar Cells

C. Ancylostoma        iii.  Mascular pharynx

D. Sepia                      iv. Visceral hump

94.In contrast to Urochordate , the hemichordate shows

95.The protein is in tertiary structure when

96.Watson and Crick described the DNA model which was

97.All are true except

98.In a double helix structure which one is wrong

99.Assertion: There is no uncatalysed metabolic conversion in living systems

Reason: Flow of metabolites through the metabolic pathway has a definite rate and direction. Which is   catalysed by enzymes.

100.Energy degraded during the metabolic pathway trapped in the form of

101.A steady-state in a living organism is characterised by

102.

Read A-D and choose the two correct   statement from them

A.The pick of the curve represents the highest activity

B.Activity gradually declines with the increase of temperature

C.Rate of reaction will increase with temperature

D.Above optimum temperature enzyme will degenerate

103.

What will be the result if competitive inhibitor is introduced at the very first of reaction?

104.The enzyme Sucrase will act on

105.Nicotinamide adenine dinucleotide will not act if there is absence of

106.Zinc serves as cofactor for

107.The correct enzyme composition of pancreatic juice is

108.The function of salivary lysosome is

109.Another term for digestion is

110.The structure of mouth that prevents food from entering the nasal passage is the

111.A human is an omnivorous with 32 teeth

A. Eight blade like premolar for biting

B. Four pointed canines for tearing

C. Eight incisors for grinding

D. Twelve molars for crushing

Choose two correct statements

112.In the brush border of small intestine, peptidase convert,

113.Liver converts the toxic substance to

114.Listed below are respiratory capacity (i-iv) and four respiratory volumes of a normal human adult

Respiratory Capacities                     Respiratory Volume

i .  Residual volume                                 2500ml

ii.  Vital capacity                                       3000ml

iii. Respiratory reserve volume              1200ml

iv. Inspiratory capacity                            4500ml

Which is the correct matching?

115.Smoking destroys the cilia in the respiratory passages. This

116.The favourable condition for the formation of haemoglobin

117.Chemosensitive area activates unless

118.All are true except

119.What will happen if there is very low GFR?

120.The principal nitrogenous excretory compound in humans is synthesised

121.Passage of ova through female tract is facilitated by

122.Select the correct statement  regarding  the specific disorder of muscular or skeletal system.

123.Which of the following is not a contractile protein

124.Reflex pathway will not be initiated if

125.Which one  of  the  following  is  the  correct matching  of  three  items  and  their  grouping category

126.Bone related with skull is

127.A diagram showing axon terminal and synapse is    Identify   correctly at least   two  of A ­ D.

128.The photosensitive compound of human eye is a protein called

129.The receptor cells for hearing and balance are

130.Cornea transplant in humans is almost never rejected. This is because

131.Choose the correct sequence of mechanism of hearing

132.During muscle contraction in humans, the

133.Rate of heart beat is determined by

134.Tetany refers to

135.

This curve represents,

136.The density of wood is0.5 g cm^–3 in cgs system of units. The corresponding value of SI units is

137.The dimensions of Planck’s constant are

138. The velocity v (in m/s) of a particle is given in terms of time t (in seconds) by the equation, v=at+[b/(t+c)]​. The dimensions of a,b,c are:

139. A particle moves along the x–axis in such a way that its coordinate (x) varies with time (t) according to the expression x = 2 – 5t + 6t² m. The time t is in second.

The initial velocity of the particle is

140.The velocity of a body depends on time as v = 20 + 0.1t² . The body has

141.A ball is released from a height h above the ground. It takes a time T to reach the ground. Where is the ball at the timeT/2

142.A stone falls freely from rest and the total distance covered by it in the last second of its motion equals the distance covered by it in the first three second of its motion. The stone remains in air for

143.A wheel covers a distance of 9.5 km in 2000 revolutions.

The diameter of the wheel is

144.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

145.The maximum velocity of a particle executingsimple harmonic motion with an amplitude 7mm, is 4.4m/s. Calculate the period of oscillation

146.The equation of SHM of a particle is a + 4pie^2x = 0 where ‘a’ is instantaneous linear acceleration at displacement x. The frequency of motion is –

147.The displacement equation of a particle is x = 3 sin 2t + 4cos2t

The amplitude & maximum velocity will be respectively–

148.A particle of mass 5 × 10^–5 kg is placed at the lowestpoint of a smooth parabola having the equation x² = 40y (x, y in cm). If it is displaced slightly and it moves such that it is constrained to move along the parabola, the angular frequency of oscillation will be, approximately-

149.A water drop of radius r falls in viscous air with terminal momentum p. If such 8 drops merge to form single drop, then terminal momentum of this single drop in same medium will be

150.Under a constant pressure head, the rate of flow of liquid through a capillary tube is V. If the length of the capillaryis doubled and the diameter of the bore is halved, the rate of flow would become

151.Two stretched membranes of area 2 cm² and 3 cm² areplaced in a liquid at the same depth. The ratio of pressures on them is

152.A capillary tube is attached horizontally to a constant head arrangement. If the radius of the capillary tube is increased by 10% then the rate of flow of liquid will change nearlyby

153.The change in the value of g at a height h above the surface of the earth is the same as at a depth d below the surface of earth. When both d and h are much smaller than the radius of earth, then which of the following is correct?

154.A satellite of the sun is in circular orbit around the sun, midway between the sun and the earth.Then

155.The diameters of two planets are in the ratio of 4 : 1 &mean density have ratio 1: 2, then the ratio of g on the planets will beThe diameters of two planets are in the ratio of 4 : 1 &mean density have ratio 1: 2, then the ratio of g on the planets will be

156.The acceleration due to the gravity on the moon is one sixth that on earth. If the average density of moon is three fifth

that of earth, the moon’s radius in terms of earth’s radius Re

is

157.The weight of the body at the centre of the earth is

158.The two moving particles collide and clump together ona smooth horizontal surface. The following statements are given below

A.Mechanical energy is conserved.

B.Total energy is conserved.

C.Work done by the system is positive 

D.Work done by the system is negative.

159.A rocket of mass 120 kg is fired in the gravity freespace. It ejects gases with velocity 600 m/s at the rate of 1 kg/s. What will be the initial acceleration of the rocket?

160.A small sphere is suspended by a string from the ceiling of a car. If the car begins to move with a constant acceleration a, the tension generated in the stringis

161.Bullets of 0.03 kg mass each hit a plate at the rate of200 bullets per second, with a velocity of 50 m/s and reflect back with a velocity of the plate in Newton is

162.A body is moving with a speed of 1ms^–1 and a force F is

needed to stop it in a distance x. If the speed of the body is 3 ms^–1, the force needed to stop it in the same distance x will be

163.A mass 1 kg is suspended by a thread.Itis                (i) lifted up

with an acceleration 4.9 ms^–2. (ii) lowered down withan

acceleration 4.9 ms^–2. The ratio of tensions in the thread is

164.A man is standing on a weighing machine placed in a lift. When Stationary, his weight is recorded as 40 kg. If the lift

is moved upwards with an acceleration of 2 ms^–2, then the

weight recorded in the machine will be

165.The mass of a lift is 500 kg. What will be the tension in its cablewhenitismovingdownundertheeffectofgravityonly?(g= 10 m/s2)

166.The speed of boat is 5 km/h in still water. It crosses a river of width 1 km along shortest possible path in 15 min. The velocity of river water is

167.Two projectiles A and B are projected with same speedat angles 30° and 60° to horizontal, then choose the wrong statement? (Symbols have their usualmeaning)

168.A particle is projected with velocity(3ˆi+4ˆj)m/s from horizontal. What will be the height attained by it when velocity becomes perpendicular to acceleration?

169.Can an object maintain uniform velocity when its acceleration is not zero?

170.A passenger is walking on a walkalator (horizontal escalator) at a speed of 6 km/hr relative to escalator. He starts from point P on the ground and reaches point Q on ground. The walkalator is moving at 3 km/hr relative to ground in the direction of point Q. The distance PQ is120m. The time taken by him to reach point Q is :

171. Three stones A, B and C are projected with same speed. A is thrown upwards B is thrown horizontally & C is thrown

downwards from a building. When the distance between stone A & C becomes 10 m, then distance between A and B will be–

172.  Five points given by A, B, C, D, E are in a plane.Three

forces

AC, AD

&

AE  act at A and three forces

CB, DB, EB

act

at B. Then their resultant is

173.The greatest and least resultant of two forces acting at a point is 10 N and 6 N respectively. If each force is increased by 3 N, find the magnitude of resultant of new forces when acting at a point at an angle of 90⁰ with each other.

174.The angle between two vectors of magnitude 12 and 18 units when their resultant is 24 units, willbe:

175.The resultant of two forces, one double the other in magnitude, is perpendicular to the smaller of the twoforces. The angle between the two forcesis

176.The average translational energy and the rms speed of the molecules in a simple of oxygen gas at 300K are6.21×10- 21 J and 484 m/s respectively. Assuming ideal gas behaviors, the corresponding values at 600 K are nearly

177.Two gases A and B having same pressure P, volume Vand temperature T are mixed. If mixture has volume and temperature as V and T respectively, then the pressure of the mixture will be-

178.Two identical containers A and B with frictionless pistons contain the ideal gas at the same temperature and the same volume V. The mass of the gas in A is mA​ and in B is mB​. The gas in each cylinder is now allowed to expand isothermally to the same final volume 2V. The changes in pressure in A and B are found to be Δp and 1.5ΔP respectively. Then:

179.The specific heat of Ar at constant volume is 0.075 kg^–1 K^–1. Calculate the atomic weight (R = 2 cal.mol^–1 K^–1)

180.The average degree of freedom per molecule for a gas is 6. The gas performs 25 J of work when it expands at constant pressure. The heat absorbed by the gas is