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JEE Main Chemistry question

ChemistryThe p-Block ElementsJEE Main

A greenish-yellow gas reacts with an alkali metal hydroxide to form a halate which can be used in fireworks and safety matches. The gas and halate, respectively, are

Answer: (B)

Solution

Chlorine, a characteristically greenish-yellow gas, disproportionates in hot concentrated to give potassium

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Question ID VK-146063