E2II GRAND TEST 5 for NEET 2023

1.Assertion: Solids are least compressible and gases are most compressible.
Reason: solids have definite shape and volume but gasesdo not have either definite shape or definite volume.

2.

same amount?

3.The fractional change in volume of a glass slab when subjected to a hydraulic pressure of 10 atm is: [Bulk modulus of glass = 37 × 10⁹ N/m²]

4.

5.A body of mass 10 kg is attached to a wire of radius 3 cm. It’s breaking stress is 4.8 × 10⁷ Nm^–2, the area of crosssectionof the wire is 10^–6 m². What is the maximum angular velocity with which it can be rotated in the horizontal circle ?

6.

7:   If the ratio of lengths, radii and Young’s modulus of steel and brass wires shown in the figure are a, b, and c, respectively. The ratio between the increase in lengths of brass and steel wires would be

8.

9.A copper wire of length 1.0 m and a steel wire of length 0.5 m having equal cross-sectional areas are joined end to end. The composite wire is stretched by a certain load which stretches the copper wire by 1 mm. If the Young’s modulii of copper and steel are respectively 1.0 × 10¹¹ Nm^–2 and 2.0 × 10¹¹ Nm^–2, the total extension of the composite wire is

10.A uniform wire (Young’s modulus 2 × 10¹¹ Nm^–2) is subjected to longitudinal tensile stress of 5 × 10⁷ Nm^–2. If the overall volume change in the wire is 0.02%, the fractional decrease in the radius of the wire is close to

11.A tall cylinder is filled with viscous oil. A round pebble is dropped from the top with zero initial velocity. From the plot shown in Fig. 10.1, indicate the one that represents the velocity (v) of the pebble as a function of time (t ).

which of the following answer is correct?

12.Which of the following diagrams (Fig. 10.2) does not represent a streamline flow?

which of the following answer is correct ?

13.Along a streamline

14.An ideal fluid flows through a pipe of circular cross-section made of two sections with diameters 2.5 cm and 3.75 cm. The ratio of the velocities in the two pipes is

15.The angle of contact at the interface of water-glass is 0°, Ethyl Alcohol-glass is 0°, Mercury-glass is 140° and Methyl Iodide Glass is 30°. A glass capillary is put in a trough containing one of these four liquids. It is observed that the meniscus is convex. The liquid in the trough is

16.

17.

18.A bimetallic strip is made of aluminium and steel (α_Al > α_steel). On heating, the strip will

19.A uniform metallic rod rotates about its perpendicular bisector with constant angular speed. If it is heated uniformly to raise its temperature slightly

20.The graph between two temperature scales A and B is shown in Fig. 11.1. Between upper fixed point and lower fixed point there are 150 equal division on scale A and 100 on scale B. The relationship for conversion between the two scales is given by

which of the following answer is correct?

21.An aluminium sphere is dipped into water. Which of the following is true?

22.As the temperature is increased, the time period of a pendulum

23.Heat is associated with

24.The radius of a metal sphere at room temperature T is R, and the coefficient of linear expansion of the metal is α. The sphere is heated a little by a temperature ΔT so that its new temperature is T + ΔT . The increase in the volume of the sphere is approximately

25.A sphere, a cube and a thin circular plate, all of same material and same mass are initially heated to same high temperature

26.A uniformly tapering conical wire is made from a material of Young’s modulus Y and has a normal, unextended length L. The radii, at the upper and lower ends of this conical wire, have values R and 3R, respectively. The upper end of the wire is fixed to a rigid support and a mass M is suspended from its lower end. The equilibrium extended length, of this wire, would equal :

27.A massless rod of length L is hanging from a horizontal ceiling with help of two wires, of equal length and diameter, attached to the ends of the rod. The Young’s modulus of the first wire is Y and the second wire is 1.2Y. A mass M is attached to the rod at a distance X from the first wire. If the stretching of the two wires is equal then X/L is 

28.A square frame of ABCD consisting of five steel bars of cross-section area 400 mm² and joined by pivot is subjected to action of two forces P = 40 kN in the direction of the diagonal as shown. Find change in angle at A if Young’s modulus Y = 2 × 10⁵ N/min.

29.

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

31.The rate of heat flow through the cross-section of the rod shown in figure is (T₂ > T₁ and thermal conductivity of the material of the rod is K)

32.The diagram below shows the change in the length X of a thin uniform wire caused by the application of stress F at two different temperatures T₁ and T₂. The variation shown suggests that

33.A solid body of constant heat capacity 1 J/°C is being heated by keeping it in contact with reservoirs in two ways :

(i) Sequentially keeping in contact with 2 reservoirs such that each reservoir supplies same amount of heat.
(ii) Sequentially keeping in contact with 8 reservoirs such that each reservoir supplies same amount of heat.
In both the cases body is brought from initial temperature 100°C to final temperature 200°C. Entropy change of the body in the two cases respectively is :

34.A U tube with both ends open to the atmosphere, is partially filled with water. Oil, which is immiscible with water, is poured into one side until it stands at a distance of 10 mm above the water level on the other side. Meanwhile the water rises by 65 mm from its original level (see diagram). The density of the oil is

35.:   If two glass plates have water between them and are separated by very small distance (see figure), it is very difficult to pull them apart. It is because the water in between forms cylindrical surface on the side that gives rise to lower pressure in the water in comparison to atmosphere. If the radius of the cylindrical surface is R and surface tension of water is T then the pressure in water between the plates is lower by

36.A rectangular gate shown should dip automatically when the water rises above a certain level. Determine that level in terms of h.

37.A tank is filled with water upto a height H. Water is allowed to come out of a hole P in one of the walls at a depth h below the surface of water (see fig.) Express the horizontal distance X in terms H and h.

38.

39.In a cylindrical water tank, there are two small holes A and B on the wall at a depth of h₁, from the surface of water and at a height of h₂ from the bottom of water tank. Surface of water is at height of h₂ from the bottom of water tank. Surface of water is at heigh H from the bottom of water tank. Water coming out from both holes strikes the ground at the same point S. Find the ratio of h₁ and h₂

40.A 0.7 kg solid cube having edge length 10 cm floats in water. How much volume of the cube is outside the water? [density of water = 1000 kg/m³]

41.

42.A ring is cut from a platinum tube 8.5 cm internal and 8.7 cm external diameter. It is supported horizontally from the pan of a balance, so that it comes in contact with the water in a glass vessel. If an extra 3.97. If is required to pull it away from water, the  surface tension of water is

43.

44.There rods of the same dimensions have thermal conductivities 3K, 2K and K. They are arranged as shown in fig. with their ends at 100°C, 50°C and 20°C. The temperature of their junction is

45.During vapourisation 

I. change of state from liquid to vapour state occurs.
II. temperature remains constant.
III. both liquid and vapour states coexist in equilibrium.
IV. specific heat of substance increases.
Correct statements are

46.The equilibrium constant for a reaction A + 2B ⇋ 2C is 40. The equilibrium constant for reaction C ⇋ B + ½ A will be,

47.Ordinary hydrogen at room temperature is a mixture of,

48.For reaction H₂(g) + I₂(g) ⇋ 2HI (g). The value of K_p changes with,

49.NH₄OH is a weak base but it becomes still weaker in the aqueous solution of,

50.The decomposition of N₂O₄ to NO₂ is carried out at 280^oC in chloroform. When equilibrium is reached, 0.2 mol of N₂O₄ and 2 × 10^-3 mol o NO₂ are present is a 2L solution. The equilibrium constant for the reaction N₂O₄ ⇋ 2NO₂ is,

51.Calgon causes the softening of hard water by,

52.When ethanol and acetic acid are mixed together in equimolar proportions, equilibrium is attained when 2/3 of acid and alcohol are consumed. The equilibrium constant for the reaction is,

53.In an exothermic reaction, a 10^o rise in temperature will,

54.A certain temperature, 50% of HI is dissociated into H2 and I2, the equilibrium constant of the reaction will be,

55.According to the Lewis acid-base concept

56.The equilibrium constant for a reaction; A + B ⇋ C + D is 1 × 10^-2 at 298 K and is 2 at 373 K. The chemical process resulting in the formation of C and D is,

57.Heat of neutralization of NaOH and HCl is -57.3 kJ/mol. The heat of ionization of water will be,

58.If the solubility of Ag₂CrO₄ is S mole/L. Its solubility product is,

59.When a solid melts there is,

60.The addition of FeCl₃ to water,

61.pOH of water is 7.0 at 298 K. If water is heated to 350 K, which of the following should be true?

62.If β₁, β₂ and β₃ are stepwise formation constants of MCl, MCl₂, MCl₃ and K is the overall formation constant of MCl₃ then (charges omitted):

63.Why only As³⁺ gets precipitated as As₂S₃ and not Zn²⁺ as ZnS when H₂S is passed through an acidic solution containing As³⁺ and Zn²⁺ ions?

64.Consider following reactions in equilibrium with equilibrium concentration 0.01 M of every species:

I: PCl₅ ⇋ PCl₃ + Cl₂

II: H₂ + I₂ ⇋ 2HI

III: N₂ + 3H₂ ⇋ 2NH₃

Extent of reactions taking place is:

65.If ∆H^o for formation of ICl (g), Cl (g) and I (g) is 17.57, 121.34, and 106.96 respectively. Then bond dissociation energy (J/mol) of I-Cl bond is,

66.Which one of the following is not a buffer solution?

67.At 90^oC, pure water has [H₃O]⁺ concentration = 10^-6 moles/L. The value of Kw at 90^oC is

68.Variation of equilibrium constant with temperature is known as,

69.A monoatomic neon possesses,

70.When 2 moles of HCl is added to 1 L of an acidic buffer, its pH changes from 3.4 to 2.9. The buffer capacity of the buffer solution is,

71.N₂ (g) + 2O₂ (g) → 2NO₂ + X kJ

2NO (g) + O₂ (g) → 2NO₂ (g) + Y kJ

The enthalpy of formation of NO is

72.For the reaction; C_(diamond) → C_(graphite); ∆H = -1.5 kJ; It follows that,

73.The heats of neutralization of four acids a, b, c and d when neutralized against a common base are 13.7, 9.4, 11.2 and 12.4 kcal respectively. The weakest among these acids is,

74.When 20 mL of M/20 NaOH is added to 10 mL of M/10 HCl. The resulting solution has pH,

75.When egg is boiled, there is,

76.A particular reaction at 27^oC, for which ∆H > 0 and ∆S > 0 is found to be non-spontaneous. The reaction may proceed spontaneously if,

77.The heat capacity of liquid water at constant pressure, Cp is 18 cal/deg/mol. The value of heat capacity of water at constant volume, Cv (in cal/deg/mol) is approximately

78.The entropy change for the fusion of 1 mol of a solid which melts at 27^oC is (latent heat of fusion = 600 cal/mol)

79.which condition is the relation ∆H = ∆E + P∆V is valid for a closed system at,

80.Hydrogen cannot reduce

81.Which of the following has maximum affinity for hydrogen;

82.Protonic acid is,

83.In any natural process

84.When an electric current is passed through an ionic hydride in molten state,

85.Maximum efficiency of a steam engine operating between 110^oC and 25^oC is,

86.The ratio Cp/Cv for hydrogen gas is,

87.In which property listed below hydrogen does not resemble alkali metal?

88.The molarity of pure water at 4^oC is,

89.For binary hydrides of MH_n, the value of n can be fractional for,

90.Inert gas has been added to the following equilibrium system at constant volume.

SO₂ (g) ½ O₂ (g) ⇋ SO₃ (g)

To which direction will the equilibrium shift?

91.In the dicotyledonous plants, the direct elongation of the radicle leads to the formation of

92.Which of the following plans have root system arose from other parts rather than the radicle?

93.All of the following statements are correct about the root function except?

94.Root hairs absorb water and minerals from the soil. Root hairs arise from

95.Match the column

Column-I                                Column-II

I.Stilt roots            A.     Leguminous plants the leaf base

II.PneumatophoresB.  Roots coming out of the lower nodes of the stem

III.Stem tendrils         C.    Roots come out of ground, grow vertically  upward    

IV.Pulvinus             D.Develop from axillary buds

96.The structure which help the leaf blade to the light is

97.Identify the following parts given in the image

98.___________ venation is the characteristic of most monocotyledons

99. Opposite type of phyllotaxy is present in which group of plants?

100.Actinomorphic flower is present in which group of plants?

101.Refer to the image and say which group of plants are belong to the image

102.Find out the incorrect match

103.In Dianthus and Primrose the placentation is

104.All are parts of an embryo except?

105.All of the following plants do not possess endosperm in their mature seeds except?

106.A floral diagram provides information about

107.Refer to the diagram

The Dot in the above diagram represents

108.Study the following characters and say the plant name which possess to the same

I.Leaves: alternate, simple, rarely pinnately compound, exstipulate; venation reticulate

II.Flower: bisexual, actinomorphic

III.Androecium: stamens five, epipetalous

IV.Seeds: many, endospermous

109.Which of the following is the correct floral formula for Tomato?

110.Aloe belongs to the family

111.Endospermous seeds are characteristic of which family?

112.Root nodules are present in which family?

113.. Organic and mineral nutrients in plant does not follow

114.Diffusion rates are affected by

115.The porins are present in all except

116.Which of the following statement(s) is/ are incorrect?

I.Some carrier or transport proteins allow diffusion only if two types of molecules move together

II.Transport rate reaches a maximum when all the protein transporters are being used or are saturated

III.The greater the concentration of water in a system, the lesser is its kinetic energy

IV.The water potential of pure water at standard temperatures, which is not under any pressure, is taken to be zero

117.Which of the following statement is true for diffusion?

118.If a pressure greater than atmospheric pressure is applied to pure water or a solution, its water potential ________

119.The Apoplast is the system of adjacent cell walls that is continuous throughout the plant, except at

120.All of the following is visible in the cells of Hydrilla leaf except?

121.Identify the following parts in the given diagram

122.The hyphae absorb mineral ions and water from the soil from a much larger volume of soil that perhaps a root cannot do, because they have

123.Effects of root pressure is also observable at night and early morning when evaporation is low, as a result of

124.Most plants meet their water need by

125.Identify A,B,C in the following diagram

126.All of the following statements are true except?

127.The transpiration driven ascent of xylem sap depends on

128.Ions are absorbed from the soil by

129.Where a plant adjusts the quantity and types of solutes that reach the xylem, the controls points are present in

130.The layer of Suberin has the ability to actively transport ions in

131.Which is the prior substance for the synthesis of protoplasm?

132.Plants follow different pathways in response to environment or phases of life to form different kinds of structures, this is called

133.Auxin is synthesised in

134.Which of the following Auxins have been isolated directly from plants?

135.Apical dominance is characterised by

136.Xylem differentiation is promoted by

137.If we want a weed free garden which PGR will be beneficial?

138.Match the following

Column-I                                Column-II

I.GA₃                      A.Closure of stomata

II. NAA            B.Corn-kernels

III.Zeatin          C.Horticulture practices

IV.ABA                D.Malting in brewing industry

139.Kinetin is the modified form of

140.Coconut milk is rich in which PGR?

141.Natural cytokines are synthesised in all except?

142.The most widely used compound as source of ethylene is Ethephon is used in

143.Respiratory climactic is attained by the PGR

144.If we want to initiate flowering early in pineapples then we need to apply

145.Plant can tolerate various stresses because they synthesis

146.All of the following are function of ethylene except?

147.If we want to keep the fruits on the tree for long time we need to apply

148.The site of perception of light/dark duration are

149.Which of the following statement is Correct?

150. All are the reasons of seed dormancy except?

151.Identify the parts in the given diagram

152.Intercalary meristem is found in

153.All are lateral meristems except?

154.Identify the following parts

155.The followings are the characteristics of which tissue?

Oval, spherical or polygonal and often contain chloroplasts, intercellular spaces are absent

156.The presence of _________ is the characteristic feature of angiosperms

157.Refer to the image and identify the parts

158. Vascular bundles in monocotyledons are closed because

159.Cork cambium and vascular cambium are parts  of 

160.Collenchyma occurs in the stem and petioles  of 

161.Which of the following statement(s) is /are Correct?

I.In stems, the Protoxylem lies towards the centre (pith) and the metaxylem lies towards the periphery of the organ.

II.Phloem in gymnosperms is composed of sieve tube elements, companion cells, phloem parenchyma

III.Phloem fibres (Bast fibres) are made up of Sclerenchymatous cells

IV.The first formed primary phloem consists of narrow sieve tubes and is referred to as metaphloem

162.Identify the following parts in the given diagram

163.Xylem and phloem within a vascular bundle are arranged in an alternate manner along the different radii, the arrangement is found in

164.There is no cambium in the vascular bundles of

165.Epiblema is the part of

166.In dicotyledonous root initiation of lateral roots and vascular cambium during the secondary growth takes place in

167.Refer to the diagram and name the following parts

168.Mesophyll is made up of

169.In dorsiventral leaf the adaxially  placed palisade parenchyma is arranged in

170.Refer to the T.S of leaf and identify the following

171.All of the following is involved in secondary growth except?

172.A continuous ring of cambium is formed by

173.In old trees, the greater part of secondary xylem is dark brown due to

174.Identify the P, Q, R, S in the given diagram

85.Which of the following is not true about ‘sclereids’?

86.In plants inulin and  pectin are

87.A Bicollateral vascular bundle is characterised  by

178.Identify A,B,C,D in the given diagram

179.Closed vascular  bundles lack 

180.As a tree grows older, which of the following increases more rapidly in thickness?