Rajesh Singh, Indu Gupta and, Sikha Sharma Solutions for Chapter: Chemical Reactions and Equations, Exercise 2: Short Answer Type Questions

Write a balanced chemical equation for the following reaction and also classify it.

Iron $\left(\mathrm{III}\right)$ oxide on heating with Carbon monoxide gas reacts to form solid Iron and liberates Carbon dioxide gas.

Write a balanced chemical equation for the following reaction and classify it.

Hydrogen sulphide gas reacts with Oxygen gas to form solid Sulphur and liquid water.  

Balance the following chemical equation and identify the type of chemical reaction.

 ${\mathrm{TiCl}}_4 \left(\mathrm{l}\right)+\mathrm{Mg} \left(\mathrm{s}\right) \stackrel{ }{\to } \mathrm{Ti} \left(\mathrm{s}\right)+2 {\mathrm{MgCl}}_2 \left(\mathrm{s}\right)$

Balance the following chemical equation and identify the type of chemical reaction.

 $\mathrm{CaO} \left(\mathrm{s}\right)+{\mathrm{SiO}}_2 \left(\mathrm{s}\right) \stackrel{ }{\to } {\mathrm{CaSiO}}_3 \left(\mathrm{s}\right)$

Balance the following chemical equation and identify the type of chemical reaction.

 ${\mathrm{H}}_2{\mathrm{O}}_2 \left(\mathrm{l}\right) \stackrel{ \mathrm{UV} }{\to } {\mathrm{H}}_2\mathrm{O} \left(\mathrm{l}\right)+{\mathrm{O}}_2 \left(\mathrm{g}\right)$

A magnesium ribbon is burnt in oxygen to give a white compound $\mathrm{X}$ accompanied by emission of light. If the burning ribbon is now placed in an atmosphere of nitrogen, it continues to burn and forms a compound $\mathrm{Y}$.

Write the chemical formula of $\mathrm{X}$ and $\mathrm{Y}$.

A magnesium ribbon is burnt in oxygen to give a white compound $\mathrm{X}$ accompanied by emission of light. If the burning ribbon is now placed in an atmosphere of nitrogen, it continues to burn and forms a compound $\mathrm{Y}$.

Write a balanced chemical equation, when $\mathrm{X}$ is dissolved in water.

Zinc liberates hydrogen gas when reacted with dilute hydrochloric acid, whereas copper does not. Explain, why?