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JEE Main 2025 (Online) 28th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
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JEE Main 2025 (Online) 28th January Morning Shift Chemistry - Chemical Kinetics and Nuclear Chemistry Question 14 English

For a given reaction $\mathrm{R} \rightarrow \mathrm{P}, \mathrm{t}_{1 / 2}$ is related to $[\mathrm{A}]_0$ as given in table.

Given: $\log 2=0.30$

Which of the following is true?

A. The order of the reaction is $1 / 2$.

B. If $[\mathrm{A}]_0$ is 1 M , then $\mathrm{t}_{1 / 2}$ is $200 \sqrt{10} \mathrm{~min}$

C. The order of the reaction changes to 1 if the concentration of reactant changes from 0.100 M to 0.500 M.

D. $\mathrm{t}_{1 / 2}$ is 800 min for $[\mathrm{A}]_0=1.6 \mathrm{M}$

Choose the correct answer from the options given below:

A
A and C Only
B
A, B and D Only
C
A and B Only
D
C and D Only
2
JEE Main 2025 (Online) 24th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
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Given below are two statements :

Statement (I) : JEE Main 2025 (Online) 24th January Evening Shift Chemistry - Chemical Kinetics and Nuclear Chemistry Question 15 English 1 is valid for first order reaction.

Statement (II) : JEE Main 2025 (Online) 24th January Evening Shift Chemistry - Chemical Kinetics and Nuclear Chemistry Question 15 English 2 is valid for first order reaction.

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

A
Both Statement I and Statement II are false
B
Statement I is true but Statement II is false
C
Statement I is false but Statement II is true
D
Both Statement I and Statement II are true
3
JEE Main 2025 (Online) 24th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

For a reaction, $\mathrm{N}_2 \mathrm{O}_{5(\mathrm{~g})} \rightarrow 2 \mathrm{NO}_{2(\mathrm{~g})}+\frac{1}{2} \mathrm{O}_{2(\mathrm{~g})}$ in a constant volume container, no products were present initially. The final pressure of the system when $50 \%$ of reaction gets completed is

A
$5 / 2$ times of initial pressure
B
$7 / 2$ times of initial pressure
C
$7 / 4$ times of initial pressure
D
5 times of initial pressure
4
JEE Main 2025 (Online) 23rd January Evening Shift
MCQ (Single Correct Answer)
+4
-1
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Which of the following graphs most appropriately represents a zero order reaction?

A
JEE Main 2025 (Online) 23rd January Evening Shift Chemistry - Chemical Kinetics and Nuclear Chemistry Question 18 English Option 1
B
JEE Main 2025 (Online) 23rd January Evening Shift Chemistry - Chemical Kinetics and Nuclear Chemistry Question 18 English Option 2
C
JEE Main 2025 (Online) 23rd January Evening Shift Chemistry - Chemical Kinetics and Nuclear Chemistry Question 18 English Option 3
D
JEE Main 2025 (Online) 23rd January Evening Shift Chemistry - Chemical Kinetics and Nuclear Chemistry Question 18 English Option 4
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