Two reactions are given to Karthik and Arun- one each- to find the molecularity of the reaction- Consider both reactions to be elementary- Reaction A is NH 4 NO 2- N 2-2 H 2 OReaction B is 2 HI - H 2- I 2Karthik got the answer as 2 and Arun got the answer as 1- which are correct- Can you tell which reactions were given to Karthik and Arun-A- Karthik - Reaction A- Arun reaction BB- Arun - Reaction A- Karthik Reaction B

The correct option is B Arun – Reaction A, Karthik Reaction BReaction A is NH_4NO_2 → 2H_2O Here only one molecule NH_4NO_2 is decomposing into products.Since ...

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Byju's Answer

Standard XII

Chemistry

Molecularity of Reaction

Two reactions...

Question

Two reactions are given to Karthik and Arun, one each, to find the molecularity of the reaction. Consider both reactions to be elementary.
Reaction (A) is $N H_{4} N O_{2} \to N_{2} + 2 H_{2} O$
Reaction (B) is $2 H I \to H_{2} + I_{2}$
Karthik got the answer as 2 and Arun got the answer as 1, which are correct. Can you tell which reactions were given to Karthik and Arun?

Karthik – Reaction A, Arun reaction B

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Arun – Reaction A, Karthik Reaction B

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Solution

The correct option is B Arun – Reaction A, Karthik Reaction B
Reaction A is $N H_{4} N O_{2} \to 2 H_{2} O$
Here only one molecule $N H_{4} N O_{2}$ is decomposing into products.Since no other reactants are participating, the molecularity is 1.

For Reaction B,
$2 H I \to H_{2} + I_{2}$

2HI molecules collide with each other to form products. As it is given that is an elementary reaction, the molecularity is 2.

So Karthik got Reaction B and Arun got Reaction A.

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Similar questions

Q. Now, two reactions are given to Karthik and Arun one each, to find the molecularity of the reaction. Considering that both reactions are elementary.
Reaction (A) is

N H_{4} N O_{2} \to N_{2} + 2 H_{2} O

Reaction (B) is

2 H I \to H_{2} + I_{2}

Karthik got the answer as 2 and Arun got answer as 1, which are correct by the way. Can you tell which reactions are given to Karthik and Arun?

Q. Two reactions are given to Karthik and Arun, one each, to find the molecularity of the reaction. Consider both reactions to be elementary.
Reaction (A) is

N H_{4} N O_{2} \to N_{2} + 2 H_{2} O

Reaction (B) is

2 H I \to H_{2} + I_{2}

Karthik got the answer as 2 and Arun got the answer as 1, which are correct. Can you tell which reactions were given to Karthik and Arun?

Q. Karthik and Arun studying chemical kinetics together. They came around this equation:

N_{2} + 3 H_{2} \to 2 N H_{3}

.
Karthik concluded that the molecularity of the reaction is 4 as one molecule of

N_{2}

is reacting with three molecules of

H_{2}

.
But Arun said that molecularity of 4 is very unlikely as the probability of 4 molecules colliding simultaneously is almost zero.
As they both contradicting one another can you tell who is correct and who is wrong.

Q. Karthik and Arun are studying chemical kinetics together. They came around this equation:

N_{2} + 3 H_{2} \to 2 N H_{3}

.
Karthik concluded that the molecularity of the reaction is 4 as one molecule of

N_{2}

is reacting with three molecules of

H_{2}

.
But Arun said that molecularity of 4 is very unlikely as the probability of 4 molecules colliding simultaneously is almost zero.
As they are both contradicting each another can you figure out who is correct and who is wrong.

Q. Karthik and Arun are studying chemical kinetics together. They came around this equation:

N_{2} + 3 H_{2} \to 2 N H_{3}

.
Karthik concluded that the molecularity of the reaction is 4 as one molecule of

N_{2}

is reacting with three molecules of

H_{2}

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