Kinetic Study of the Reaction of Iodide Ions with Hydrogen Peroxide at Room Temperature NEET Questions

Organic Chemistry - Principles of Practical Chemistry

Kinetic Study of the Reaction of Iodide Ions with Hydrogen Peroxide at Room Temperature MCQ Questions


1.
The reaction between iodide and hydrogen peroxide is used to study
A.
First-order kinetics
B.
Zero-order kinetics
C.
Second-order kinetics
D.
Third-order kinetics
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ANSWER :
C. Second-order kinetics
2.
Which of the following acts as an oxidizing agent in the reaction with iodide?
A.
Iodide ion
B.
Hydrogen peroxide
C.
Hydrogen ion
D.
Water
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ANSWER :
B. Hydrogen peroxide
3.

In acidic medium, H2O2 oxidizes I⁻ to

A.

I2

B.

IO3⁻

C.

IO⁻

D.

I⁺

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ANSWER :

A. I2

4.

What is observed when H2O2 reacts with KI in acidic medium?

A.

Colorless solution

B.

Purple solution

C.

Yellow ppt

D.

Formation of I2 gas

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ANSWER :

B. Purple solution

5.
H₂O₂ oxidizes KI to liberate I₂ in acidic medium. What is the equivalent weight of H₂O₂ in this reaction?

NEET - 2021

A.
17
B.
34
C.
68
D.
8
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ANSWER :
A. 17
6.

In the kinetics of H2O2 + KI reaction, the liberated iodine is detected using

A.

Starch

B.

Phenolphthalein

C.

Methyl orange

D.

Red litmus

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ANSWER :

A. Starch