Which of the following substances does not re | vedclass

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(A) $1$. $MgO$ (Magnesium oxide) is a basic oxide that does not decompose to release $O_2$ upon heating.$2$. It is highly hygroscopic and is often use

Vedclass · Accepted Answer

$MgO$

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(A) $1$. $MgO$ (Magnesium oxide) is a basic oxide that does not decompose to release $O_2$ upon heating.$2$. It is highly hygroscopic and is often used as a desiccant to remove water vapor.$3$. $NaNO_3$,$Pb_2O_4$ (or $Pb_3O_4$),and $KClO_3$ all release $O_2$ upon thermal decomposition.$4$. Therefore,the correct option is $A$.

Which of the following substances does not release $O_2$ and removes water vapor?

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