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TS EAMCET Mock Test - 7 - JEE MCQ


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30 Questions MCQ Test - TS EAMCET Mock Test - 7

TS EAMCET Mock Test - 7 for JEE 2024 is part of JEE 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
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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
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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
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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
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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
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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,β1 ,β2  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
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The velocity of an electron in the second shell of the hydrogen atom is
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TS EAMCET Mock Test - 7 - Question 7
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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
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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
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Dehydration of alcohol involves the formation of which of the following intermediates?
TS EAMCET Mock Test - 7 - Question 10
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Here, Z is
TS EAMCET Mock Test - 7 - Question 11
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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
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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
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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
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y = A ex + B e2x + C e3x  satisfies the diferential equation
TS EAMCET Mock Test - 7 - Question 15
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The solution of the equation (1+x2)(1+y)dy+(1+x)(1+y2)dx=0 is
TS EAMCET Mock Test - 7 - Question 16
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The area bounded by two curves y2=4ax and x2=4ay is
TS EAMCET Mock Test - 7 - Question 17
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TS EAMCET Mock Test - 7 - Question 18
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The harmonic mean of 4,8,16 is
TS EAMCET Mock Test - 7 - Question 19
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If f(x)   = e -1/x2 , x ≠ 0, and f(0) = 0 then f ′(0)    is
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TS EAMCET Mock Test - 7 - Question 20
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Which of the following is not a statement ?
TS EAMCET Mock Test - 7 - Question 21
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∫tan-1[(2x)/(1-x2)]dx=
TS EAMCET Mock Test - 7 - Question 22
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Which equation has the solution, y = 4sin3x?
TS EAMCET Mock Test - 7 - Question 23
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Consider f (x)   = x2/| x | , x ≠ 0, f(x)   = 0, x = 0
TS EAMCET Mock Test - 7 - Question 24
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The general value of θ which satisfies tanθ=-1 and cosθ=(1/√2) the equations is
TS EAMCET Mock Test - 7 - Question 25
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TS EAMCET Mock Test - 7 - Question 26
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The derivative of 

TS EAMCET Mock Test - 7 - Question 27
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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
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In Δ A B C , If a2 + b2  + c2  = 8 R2 , then the triangle is
TS EAMCET Mock Test - 7 - Question 29
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if f(m) = 3, f'(m) = 2, g(m) = - 1 and g'(m) = 2 is
TS EAMCET Mock Test - 7 - Question 30
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The maximum value of logx/x in (2, ∞) is
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