Given below are two statements. in valiid for first order reaction. [2025]

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Q.
Given below are two statements:

In the light of the above statements, choose the correct answer from the options given below: [2025]

1 Statement I is false but Statement II is true.

2 Both Statement I and Statement II are false.

3 Statement I is true but Statement II is false.

4 Both Statement I and Statement II are true.

Ans.
(3)

Statement I: $t_{1 / 2}$ is independent of initial concentration of reactants for a first order reaction.

Statement II: For a first order reaction:

$k = \frac{2.303}{t} \log \frac{{[R]}_{0}}{[R]}$
$\log \frac{{[R]}_{0}}{[R]} = \frac{k}{2.303} t$

Solution

Q.
Given below are two statements:

In the light of the above statements, choose the correct answer from the options given below: [2025]

1 Statement I is false but Statement II is true.

2 Both Statement I and Statement II are false.

3 Statement I is true but Statement II is false.

4 Both Statement I and Statement II are true.

Ans.
(3)

Statement I: $t_{1 / 2}$ is independent of initial concentration of reactants for a first order reaction.

Statement II: For a first order reaction:

$k = \frac{2.303}{t} \log \frac{{[R]}_{0}}{[R]}$
$\log \frac{{[R]}_{0}}{[R]} = \frac{k}{2.303} t$

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Solution

Q. Given below are two statements: In the light of the above statements, choose the correct answer from the options given below: [2025]

1 Statement I is false but Statement II is true.

2 Both Statement I and Statement II are false.

3 Statement I is true but Statement II is false.

4 Both Statement I and Statement II are true.

Ans. (3) Statement I: t1/2 is independent of initial concentration of reactants for a first order reaction. Statement II: For a first order reaction: k=2.303tlog[R]0[R] log[R]0[R]=k2.303t

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Q.
Given below are two statements:

In the light of the above statements, choose the correct answer from the options given below: [2025]

Ans.
(3)

Statement I: $t_{1 / 2}$ is independent of initial concentration of reactants for a first order reaction.

Statement II: For a first order reaction:

$k = \frac{2.303}{t} \log \frac{{[R]}_{0}}{[R]}$
$\log \frac{{[R]}_{0}}{[R]} = \frac{k}{2.303} t$