Embibe Experts Solutions for Chapter: Chemical Reactions and Equations, Exercise 1: Jharkhand Board-2018

$\mathrm{Fe}+{\mathrm{CuSO}}_4\to {\mathrm{FeSO}}_4+\mathrm{Cu}$ is which type of reaction?

What do you mean by a precipitation reaction?

Explain oxidation and reduction in terms of gain or loss of oxygen. Mention examples for each one. 

Balance the following chemical equations:

(a) $\mathrm{Na}+{\mathrm{O}}_2\to {\mathrm{Na}}_2\mathrm{O}$

(b) $\mathrm{K}+{\mathrm{H}}_2\mathrm{O}\to \mathrm{KOH}+{\mathrm{H}}_2$

Explain oxidation and reduction in terms of gain or loss of oxygen. Mention one example for each one. 

The chemical reaction $\mathrm{Fe}+{\mathrm{CuSO}}_4\to {\mathrm{FeSO}}_4+\mathrm{Cu}$ is which type of reaction?

Balance the following chemical equations:

(a) ${\mathrm{H}}_2+{\mathrm{O}}_2\to {\mathrm{H}}_2\mathrm{O}$

(b) ${\mathrm{MnO}}_2+\mathrm{HCl}\to {\mathrm{MnCl}}_2+{\mathrm{Cl}}_2+{\mathrm{H}}_2\mathrm{O}$

The reaction of water with $\mathrm{CaO}$ has been shown in the given diagram. 

(a) Write the names of $\left[1\right]$ and $\left[2\right]$. 

(b) Write the name of the reaction taking place.

(c) Write the balanced equation for the reaction taking place.