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TS EAMCET Mock Test - 7 - JEE MCQ


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30 Questions MCQ Test TS EAMCET Mock Test Series - TS EAMCET Mock Test - 7

TS EAMCET Mock Test - 7 for JEE 2024 is part of TS EAMCET Mock Test Series preparation. The TS EAMCET Mock Test - 7 questions and answers have been prepared according to the JEE exam syllabus.The TS EAMCET Mock Test - 7 MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for TS EAMCET Mock Test - 7 below.
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TS EAMCET Mock Test - 7 - Question 1

To send 10% of the main current, through a moving coil galvanometer of resistance 99Ω, the shunt required is

TS EAMCET Mock Test - 7 - Question 2

When the light source is kept 20 cm away from a photo cell, stopping potential 0.6 V is obtained. When source is kept 40 cm away, the stopping potential will be

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TS EAMCET Mock Test - 7 - Question 3

The inductance of a coil is L = 10 H and resistance R = 5 Ω . If applied voltage of battery is 10 V and it switches off in 1 millisecond, find induced emf of inductor.

TS EAMCET Mock Test - 7 - Question 4

The distance travelled by light in glass (refractive index =1.5) in a nanosecond will be

Detailed Solution for TS EAMCET Mock Test - 7 - Question 4

Speed of light in glass 
Distance travelled in one nanosecond
= 2 x 108 x 10-9 = 0.2 m = 20 cm

TS EAMCET Mock Test - 7 - Question 5

Directions: Consider the following equilibrium equations (omitting charges).

I. M + Cl → MCl, Keq = β1
II. MCl + Cl → MCl2, Keq = β2 
III. MCl2 + Cl → MCl3, Keq = β3
IV. M + 3Cl → MCl3, Keq = K

The relationship(s) between K,β12  and β3 is/are

Detailed Solution for TS EAMCET Mock Test - 7 - Question 5

The equation IV is a sum of equations I, II and III. Hence, its equilibrium constant is the product of equilibrium constants of the three reactions.

TS EAMCET Mock Test - 7 - Question 6

The velocity of an electron in the second shell of the hydrogen atom is

Detailed Solution for TS EAMCET Mock Test - 7 - Question 6

TS EAMCET Mock Test - 7 - Question 7

When a 5 g piece of charcoal is added to a 0.75 M CH3COOH, the concentration drops to 0.73 M. The extent of adsorption is

Detailed Solution for TS EAMCET Mock Test - 7 - Question 7

Number of moles of CH3COOH adsorbed = 0.75 - 0.73 = 0.02
Mass of CH3COOH adsorbed = 0.02 × 60 = 1.2 g
x/m = 1.2/5 = 0.24

TS EAMCET Mock Test - 7 - Question 8

Which of the following ions having following electronic structure would have the maximum magnetic moment?

Detailed Solution for TS EAMCET Mock Test - 7 - Question 8

In 1s22s22p63s23p63d3, the number of unpaired electrons are 3.
In 1s22s22p63s23p63d5, the number of unpaired electrons are 5.
In 1s22s22p63s23p63d7, the number of unpaired electrons are 3.
In 1s22s22p63s23p63d9, the number of unpaired electrons is 1.

The magnetic moment  where n is the number of unpaired electrons.

So, the more the number of unpaired electrons, the more is the magnetic moment. Hence, 1s22s22p63s23p63d5 has the maximum magnetic moment.

TS EAMCET Mock Test - 7 - Question 9

Dehydration of alcohol involves the formation of which of the following intermediates?

TS EAMCET Mock Test - 7 - Question 10

Here, Z is

TS EAMCET Mock Test - 7 - Question 11

Which of the following molecule is expected to rotate the plane of polarised light?

Detailed Solution for TS EAMCET Mock Test - 7 - Question 11

Optically active compounds rotate the plane of polarised light either towards the right or left side. And the compound which has at least one chiral centre will be optically active.

Since only the given compound contains a chiral carbon, it will rotate the plane of polarised light.

Option D also has chiral carbons but it also contain plane of symmetry. So, it will be meso compound.

TS EAMCET Mock Test - 7 - Question 12

Which of the following represents the correct order of decreasing number of S=O bonds?

Detailed Solution for TS EAMCET Mock Test - 7 - Question 12


The number of S=O bonds present in an oxoacid of sulphur is inversely proportional to the number of H-atoms present per oxygen atom in the molecule.

TS EAMCET Mock Test - 7 - Question 13

Consider the reaction:
P + 2Q → R
When concentration of Q alone was tripled, the half-life did not change. When the concentration of P alone was made four times, the rate increased two times. The unit of rate constant for this reaction would be

Detailed Solution for TS EAMCET Mock Test - 7 - Question 13

For the reaction: P + 2Q → R, when concentration of 'Q' is doubled, the half-life does not change, hence reaction is first-order with respect to 'Q'.
This is because for the first order reaction, rate constant is independent from initial concentration of the reactant.
When the concentration of 'P' is made four times, the rate of reaction becomes double. It means the reaction is half-order with respect to 'P'.
Hence, the rate law expression is:

Overall order = 1 + 1/2 = 3/2
Units of the rate constant = (mol L-1)(1 - n) s-1
So, unit of rate constant is L1/2 mol-1/2 s-1.

TS EAMCET Mock Test - 7 - Question 14

y = A e+ B e2x + C e3x  satisfies the diferential equation

TS EAMCET Mock Test - 7 - Question 15

The solution of the equation (1+x2)(1+y)dy+(1+x)(1+y2)dx=0 is

TS EAMCET Mock Test - 7 - Question 16

The area bounded by two curves y2=4ax and x2=4ay is

TS EAMCET Mock Test - 7 - Question 17

TS EAMCET Mock Test - 7 - Question 18

The harmonic mean of 4,8,16 is

TS EAMCET Mock Test - 7 - Question 19

If f(x)   = e -1/x2 , x ≠ 0, and f(0) = 0 then f ′(0)    is

Detailed Solution for TS EAMCET Mock Test - 7 - Question 19

TS EAMCET Mock Test - 7 - Question 20

Which of the following is not a statement ?

TS EAMCET Mock Test - 7 - Question 21

∫tan-1[(2x)/(1-x2)]dx=

TS EAMCET Mock Test - 7 - Question 22

Which equation has the solution, y = 4sin3x?

TS EAMCET Mock Test - 7 - Question 23

Consider f (x)   = x2/| x | , x ≠ 0, f(x)   = 0, x = 0

TS EAMCET Mock Test - 7 - Question 24

The general value of θ which satisfies tanθ=-1 and cosθ=(1/√2) the equations is

TS EAMCET Mock Test - 7 - Question 25

TS EAMCET Mock Test - 7 - Question 26

The derivative of 

TS EAMCET Mock Test - 7 - Question 27

If b + c, c + a, a + b are in H.P., then a2, b2, c2 will be in

TS EAMCET Mock Test - 7 - Question 28

In Δ A B C , If a2 + b2  + c2  = 8 R2 , then the triangle is

TS EAMCET Mock Test - 7 - Question 29

if f(m) = 3, f'(m) = 2, g(m) = - 1 and g'(m) = 2 is

TS EAMCET Mock Test - 7 - Question 30

The maximum value of logx/x in (2, ∞) is

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