Q. Which of the following compounds gives chlorine dioxide when it reacts with SO_{2} in the presence of acid?
A) Sodium chloride
B) Sodium chlorate
C) Sodium perchlorate
D) Sodium chlorite
Explanation
(b)
Commercially chlorine dioxide is prepared by passing SO_{2} gas into a mixture of sodium chloride and H_{2}SO_{4} having NaCl in traces.
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Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.