Aqueous solution of $S n O$ liberates $C O_{2}$ with $N a H C O_{3}$ . This shows that $S n O$ is :

an acidic oxide

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a basic oxide

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an amphoteric oxide

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a Lewis acid

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Solution

The correct option is B an acidic oxide
$\begin{matrix} In general, all the oxides of Sn are amphoteric in nature i.e. they can behave as both acid as well as base. \end{matrix}$
Here, ${N a H C O}_{3}$ is having an appreciable basic strength.
Thus, SnO is showing its acidic behaviour in front of ${N a H C O}_{3}$ , and evolves $C O_{2}$ . Hence, this shows $S n O$ is an acidic oxide here.

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