Question

Which of the following oxide is expected to react readily with $NaOH$?

• A. $N{a}_{2}O$
• B. $CaO$
• C. $NO$
• D. $C{l}_2{O}_7$

Answer 1

The correct option is D $C{l}_2{O}_7$

Among all given oxides, $C{l}_2{O}_7$ is an acidic oxide. So, it can react with $NaOH$ to give salt and water, according to following equation:-
$C{l}_2{O}_7+2NaOH\to 2NaCl{O}_4+H_{2}O$
Other molecules $N{a}_{2}O$, $NO$, $CaO$ are basic oxides.