R P Rana Solutions for Chapter: Chemical Reactions, Exercise 4: Exercise

What type of reaction is the following.

${\mathrm{BaCl}}_2+{\mathrm{Na}}_2{\mathrm{SO}}_4\to {\mathrm{BaSO}}_4+2\mathrm{NaCl}$.

What type of reaction is the following.

${\mathrm{C}}_2{\mathrm{H}}_4+{\mathrm{H}}_2\underset{200°\mathrm{C}}{\overset{\mathrm{heated} \mathrm{nickel} \mathrm{powder}}{\to }} {\mathrm{C}}_2{\mathrm{H}}_6$.

What type of reaction is the following.

${\mathrm{CH}}_4+{\mathrm{Cl}}_2\to {\mathrm{CH}}_3\mathrm{Cl}+\mathrm{HCl}$.

What do you understand by thermal decomposition? Give one example.
 

What do you understand by double decomposition reaction? Give one example.

What is activity series of metals?

Explain why hydrogen being a non-metal is placed in the activity series of metal.
 

Study the diagram given below and answer the question that follow: 
  
1. Label the apparatus given in the figure. 
2. Name the oxide formed during the reaction. 
3. Name the alkali formed when water is added to the oxide formed.