First slide

Hydrogen

Question

The metal which displace hydrogen from a boiling caustic soda soltuion is

Easy

A

Mg
B

Fe
C

As
D

Zn

Solution

$Zn + NaOH \overset{}{\to} \underset{Sodium zincate}{{Na}_{2} {ZnO}_{2}} + H_{2} ↑$

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