1

AIEEE 2004

MCQ (Single Correct Answer)

+4

-1

In a first order reaction, the concentration of the reactant decreases from 0.8 M to 0.4 M in 15
minutes. The time taken for the concentration to change from 0.1 M to 0.025 M is

2

AIEEE 2004

MCQ (Single Correct Answer)

+4

-1

The rate equation for the reaction 2A + B $$\to$$ C is found to be: rate k[A][B]. The correct
statement in relation to this reaction is that the

3

AIEEE 2004

MCQ (Single Correct Answer)

+4

-1

Consider the following nuclear reactions

$${}_{92}^{238}M \to {}_Y^XN + 2{}_2^4He$$

$${}_Y^XN \to {}_B^AL + 2{\beta ^ + }$$

The number of neutrons in the element L is

$${}_{92}^{238}M \to {}_Y^XN + 2{}_2^4He$$

$${}_Y^XN \to {}_B^AL + 2{\beta ^ + }$$

The number of neutrons in the element L is

4

AIEEE 2004

MCQ (Single Correct Answer)

+4

-1

The half – life of a radioisotope is four hours. If the initial mass of the isotope was 200 g, the
mass remaining after 24 hours undecayed is

Questions Asked from Chemical Kinetics and Nuclear Chemistry (MCQ (Single Correct Answer))

Number in Brackets after Paper Indicates No. of Questions

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