Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) General Single Correct MCQ
Published on: August 14, 2026

A certain hypohalite on treating with hot and conc. NaOH forms anions P and Q. More stable anion among P and Q can be obtained by neutralizing its conjugate acid X.

Upon heating X to very high temperature, a compound Y is formed, which is used in estimation of a toxic gas which have 300 times stronger affinity for haemoglobin than dioxygen. Then which of the following statements are true.

A
X is HI.
B
Y is Cl 2 O 5
C
Final product Y, has total no. of bonds 5.
D
Y on reacting with toxic gas produces a gas which is used in fire extinguisher.

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Verified by Experts
The correct answer is:
D

IO – +

Q is more stable anion its conjugate acid is

+ 5CO I 2 + 5CO 2 Useful in fire extinguishing

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