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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A white solid ‘A’ on heating gives off a gas which turns lime water milky. The residue is yellow when hot but turns white on cooling. This solid ‘A’ is

A white solid ‘A’ on heating gives off a gas which turns lime water milky. The residue is yellow when hot but turns white on cooling. This solid ‘A’ is

A white solid 'A' on heating gives off a gas which turns lime water milky. The residue is yellow when hot but turns white on cooling. This solid 'A' is