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In the following reactions, products (A) and (B), respectively, are : NaOH + Cl2 → (A) + side products (hot and conc.) Ca(OH)2 + Cl2 → (B) + side products (dry)

1. NaClO3 and Ca(ClO3)2
2. NaClO3 and Ca(OCl)2
3. NaOCl and Ca(OCl)2
4. NaOCl and Ca(ClO3)2

Correct answer: NaClO3 and Ca(ClO3)2

Solution

The correct option indicates that both sodium hydroxide and calcium hydroxide react with chlorine to produce sodium chlorate and calcium chlorate, respectively, under the specified conditions. This aligns with the known chemistry of chlorine reacting with strong bases, leading to the formation of chlorates when concentrated.

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