Question

# Which of the following equation is not correct?

A
Amphoteric oxide / Hydroxide + Acid Salt + Water
B
Amphoteric oxide / Hydroxide + Alkali Salt + Water
C
Metal + Alkali Salt + Water
D
Metal + Alkali Salt + Hydrogen

Solution

## The correct option is C Metal + Alkali$$\rightarrow$$ Salt + WaterAmphoteric oxide / Hydroxide on reaction with an acid forms a salt and water. Example- ZnO + 2HCl → ZnCl₂ + H₂O. Hence, option A represents the correct equation.Amphoteric oxide / Hydroxide on reaction with an Alkali forms a salt and water. Example- BeO + 2NaOH → Na₂BeO₂ + H₂O. Hence, option B also represents the correct equation.When a metal reacts with an alkali, salt and hydrogen gas is formed. Example- Zn + 2NaOH → Na₂ZnO₂ + H₂ .Hence, option C represents the incorrect equation and option D is the correct equation.Chemistry

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