Day 145: CBSE Class 10 Science

1. A.
   $\mathrm{2FeSO_4 \rightarrow Fe_2O_3 + SO_2 + SO_3}$
2. B.
   $\mathrm{2H_2O \rightarrow 2H_2 + O_2}$
3. C.
   $\mathrm{2AgBr \rightarrow 2Ag + Br_2}$
4. D.
   $\mathrm{CaCO_3 \rightarrow CaO + CO_2}$

Tap an option to check your answer.

1. A.
   $\mathrm{NaCl + AgNO_3 \rightarrow AgCl + NaNO_3}$
2. B.
   $\mathrm{CaO + H_2O \rightarrow Ca(OH)_2}$
3. C.
   $\mathrm{KNO_3 + H_2SO_4 \rightarrow KHSO_4 + HNO_3}$
4. D.
   $\mathrm{ZnCl_2 + H_2S \rightarrow ZnS + 2HCl}$

Tap an option to check your answer.

1. A.
   $\mathrm{H_2S}$ is oxidising agent and $\mathrm{SO_2}$ is reducing agent.
2. B.
   $\mathrm{H_2S}$ is reduced to sulphur.
3. C.
   $\mathrm{SO_2}$ is oxidising agent and $\mathrm{H_2S}$ is reducing agent.
4. D.
   $\mathrm{SO_2}$ is oxidised to sulphur.

Tap an option to check your answer.