Which of the following substances does not re | vedclass

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(A) $2NaNO_3 \xrightarrow{\Delta} 2NaNO_2 + O_2$$2Pb_3O_4 \xrightarrow{\Delta} 6PbO + O_2$$2KClO_3 \xrightarrow{\Delta} 2KCl + 3O_2$$MgO$ is a highly

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$MgO$

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(A) $2NaNO_3 \xrightarrow{\Delta} 2NaNO_2 + O_2$$2Pb_3O_4 \xrightarrow{\Delta} 6PbO + O_2$$2KClO_3 \xrightarrow{\Delta} 2KCl + 3O_2$$MgO$ is a highly stable oxide with a very high melting point. It does not decompose to release $O_2$ upon heating in a Bunsen flame and is often used as a drying agent (dehydrating agent) for gases.

Which of the following substances does not release $O_2$ and acts as a dehydrating agent?

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