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JEE Main Chemistry question

ChemistryThe p-Block ElementsJEE Main

A certain compound, when burnt, gave three oxides. The first turned lime water milky, the second turned cobalt chloride paper pink, and the third formed an aqueous solution of pH nearly 3. The elements present in the compound are:

Answer: (C)

Solution

Milky lime water indicates (carbon present); cobalt chloride paper turning pink (blue when dry, pink on hydration) indicates water vapour, (hydrogen present);

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Question ID VK-146680