NATA Mock Test - 8 - JEE MCQ

# NATA Mock Test - 8 - JEE MCQ

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## 30 Questions MCQ Test - NATA Mock Test - 8

NATA Mock Test - 8 for JEE 2024 is part of JEE preparation. The NATA Mock Test - 8 questions and answers have been prepared according to the JEE exam syllabus.The NATA Mock Test - 8 MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for NATA Mock Test - 8 below.
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NATA Mock Test - 8 - Question 1

### In the figure shown the acceleration of A is, , then the acceleration of B is : (A remains in contact with B)

Detailed Solution for NATA Mock Test - 8 - Question 1

From wedge constraint

NATA Mock Test - 8 - Question 2

### The speed of sound in hydrogen gas at N.T.P. is 1,328 ms-1. What will be its value in air at N.T.P., if density of hydrogen is 1/16th that of air?

Detailed Solution for NATA Mock Test - 8 - Question 2

Let vair be the velocity of sound in air at N.T.P

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NATA Mock Test - 8 - Question 3

### A balloon that is initially flat, is inflated by filling it from a tank of compressed air. The final volume of the balloon is 5m3. The barometer reads 95 kPa. The work done in this process is

Detailed Solution for NATA Mock Test - 8 - Question 3

W = P Δ V⁡ = 95 × 103 × (5-0)
= 4.75 × 105 J

NATA Mock Test - 8 - Question 4

Two bodies of same mass tied with an inelastic string of length   together on a horizontal surface. One a horizontal surface of them is projected vertically upwards with velocity  ⁡Find the maximum height up to which the centre of mass of system of the two masses rises.

Detailed Solution for NATA Mock Test - 8 - Question 4

Velocity of B when string is just taut

After string in taut both will move up with same speed,
By this time centre of mass in at
Further rise in

Hence maximum height

NATA Mock Test - 8 - Question 5

The electric potential at a point (x, y, z) is given by V = -x2y - xz3 + 4 The electric field  at that point is

Detailed Solution for NATA Mock Test - 8 - Question 5

The electric potential at a point,

NATA Mock Test - 8 - Question 6

Place the following alcohols in decreasing order of rate of dehydration with concentrated H2SO4 :
1. CH3CH2CH(OH)CH2CH2CH3
2. (CH3)2C(OH)CH2CH2CH3
3. (CH3)2C(OH)CH(CH3)2
4. CH3CH2CH(OH)CH(CH3)2
​5. CH3CH2CH2CH2CH2CH2OH

Detailed Solution for NATA Mock Test - 8 - Question 6

The alcohols (3) and (2) are both 3o, but alcohol (3) gives a more substituted alkene. Alcohol (4) and (1) are both 2o, but alcohol (4) can give a more substituted alkene and alcohol (5) is 1o. Rate of dehydration of alcohols with concentrated H2SO4 follows the order 3o > 2o > 1o.

NATA Mock Test - 8 - Question 7

1.2 g of a salt with its empirical formula KxHy(C2O4)z was dissolved in 50 mL of water and its 10 mL portion required 11 mL of a 0.1 M HCl solution to reach the equivalence point. In a separate titration, 15 mL of the stock solution required 20 mL 0.2475 M KOH to reach the equivalence point. Identify the correct option.

Detailed Solution for NATA Mock Test - 8 - Question 7

∴ y = 3x.

NATA Mock Test - 8 - Question 8

The structure of H2O2 is

Detailed Solution for NATA Mock Test - 8 - Question 8

In H2O2, the O - H groups are not in the same plane. So it has non - planar structure. If has a half - opened book structure in which the two O - H groups lie on the two pages of the book. The angle between two pages of the book is 94o and H - O - O bond angle is 97o.

NATA Mock Test - 8 - Question 9

In nitroprusside ion the iron and NO exist as Fe II and NOrather than Fe III and NO. These forms can be differentiated by

Detailed Solution for NATA Mock Test - 8 - Question 9

Fe II and Fe III will have different values of magnetic moment due to different number of unpaired electrons in their d-orbitals.

NATA Mock Test - 8 - Question 10

Among the following pair of oxides, which pair cannot be reduced by carbon to give the respective metals ?

Detailed Solution for NATA Mock Test - 8 - Question 10

Potassium and calcium are strong reductant, hence their oxides cannot be reduced by carbon.

NATA Mock Test - 8 - Question 11

If the area bounded by  y = ax2 and x = ay2,  a > 0, is 1, then a is equal to

Detailed Solution for NATA Mock Test - 8 - Question 11

solving simultaneously

∴ (0,0) and  are the points of intersection
∴ area between the given curves

NATA Mock Test - 8 - Question 12

A single letter is selected at random from the word 'PROBABILITY'. The probability that it is a vowel, is :

Detailed Solution for NATA Mock Test - 8 - Question 12

Out of 11 letters in the word PROBABILITYO,A,I and I are the vowels.
So probability that the letter selected is a vowel, is 4/11

NATA Mock Test - 8 - Question 13

Ten cards numbered 1 through 10 are placed in a box, mixed up thoroughly and then one card is drawn randomly. If it is known that the number on the drawn card is more than 3, what is the probability that it is an even number.

Detailed Solution for NATA Mock Test - 8 - Question 13

Let the events be :
A : Number on the card drawn is even.
B : Number on the card is more than 3.
We are to find P(A/B).
We have : S = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
Then A = {2, 4, 6, 8,10}
and B = {4, 5, 6, 7, 8, 9, 10}

NATA Mock Test - 8 - Question 14

Detailed Solution for NATA Mock Test - 8 - Question 14

NATA Mock Test - 8 - Question 15

Detailed Solution for NATA Mock Test - 8 - Question 15

NATA Mock Test - 8 - Question 16

The below question consists of problem figures and followed by four answer figures (A), (B), (C) and (D). Find out the figure from the answer figures which will continue the given series.

Detailed Solution for NATA Mock Test - 8 - Question 16

The elements in the figures are increasing in certain patterns 2, 3, 5, 7 and 11(Prime numbers).

NATA Mock Test - 8 - Question 17

The below question consists of problem figures and followed by four answer figures (A), (B), (C) and (D). Find out the figure from the answer figures which will continue the given series.

NATA Mock Test - 8 - Question 18

The below question consists of a set of three figures K, L and M showing a sequence of folding of a piece of paper. Figure M shows the manner in which the folded paper has been cut. These three figures are followed by four figures (1), (2), (3) and (4) from which you have to choose a figure which would most closely resemble the unfolded form of figure M.

NATA Mock Test - 8 - Question 19

Which one of the given set of figures violates the given rule? Rule: Second figure is at an angle of 900 to the first figure and third figure is at an angle of 450 to the first figure.

(A)

(B)

(C)

(D)

NATA Mock Test - 8 - Question 20

Identify the type of roof

Detailed Solution for NATA Mock Test - 8 - Question 20

Pointed roof

NATA Mock Test - 8 - Question 21

In the below question, one or more dots are placed in the problem figure (X) followed by four alternatives (a), (b), (c) and (d). One out of these four alternatives contain region(s) common to the circle, square, triangle and rectangle similar to that marked by the dot in figure (X).

Detailed Solution for NATA Mock Test - 8 - Question 21

NATA Mock Test - 8 - Question 22

The below question consists of a question figure and followed by four figures (a), (b), (c) and (d). Choose one out of these four figures that can replace ‘?’ to complete the question figure.

Detailed Solution for NATA Mock Test - 8 - Question 22

NATA Mock Test - 8 - Question 23

The below question consists of an unfolded dice in the left side and four choices (a), (b), (c) and (d) are given in the form of complete dice in the right side. You are required to select the correct answer choice which is formed by folding the unfolded dice.

NATA Mock Test - 8 - Question 24

The below question consists of a unfolded dice in the left side and four choices (a), (b), (c) and (d) are given in the form of complete dices in the right side. You are required to select the correct answer choice which is formed by folding the unfolded dice.

NATA Mock Test - 8 - Question 25

The below question consists of figure (Y) and followed by four alternatives (1), (2), (3) and (4). Choose the correct alternative among the four alternatives such that the pattern would appear like when the figure (Y) is folded at the dotted line.

NATA Mock Test - 8 - Question 26

Choose the correct mirror image for the given figure among the four alternatives (1), (2), (3) and (4). The mirror is represented by a line AB.

NATA Mock Test - 8 - Question 27

Find the number of triangles in the given figure

Detailed Solution for NATA Mock Test - 8 - Question 27
10 (small triangles) + 7 (medium triangles) + 4 (big triangles) = 21
NATA Mock Test - 8 - Question 28

The below question consists of four figures a, b, c and d followed by a set of four alternatives A, B, C and D. Which of the combinations given below when fitted into each other would form a complete circle?

NATA Mock Test - 8 - Question 29

The below question consists of figure (Y) and followed by four alternatives (1), (2), (3) and (4). Choose the correct alternative among the four alternatives such that the pattern would appear like when the figure (Y) is folded at the dotted line.

NATA Mock Test - 8 - Question 30

The below question consists of a figure matrix with one or more missing terms and followed by four answer figures (1), (2), (3) and (4). Find the correct answer figure that will replace '?'

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