First slide

Chemical Properties

Question

Which of the following when reacts with NaOH liberates a flammable gas ?

Easy

A

Fe
B

SiO₂
C

SO₂
D

Zn

Solution

Zn when reacts with NaOH liberates H₂ gas which is a flammable gas.
Zn + 2OH^- $\to$ ${ZnO}_{2}^{- 2}$ + H₂

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