S P Singh Solutions for Chapter: Acids, Bases and Salts, Exercise 3: EXERCISE-3B

How would you prepare copper sulphate crystals from a mixture of charcoal and black copper oxide.

Name a salt whose solubility increases with temperature.

Name a salt whose solubility decreases with temperature.

Choose the covalent oxide of a metalloid from $\left[{\mathrm{SO}}_2, {\mathrm{SiO}}_2, {\mathrm{Al}}_2{\mathrm{O}}_3, \mathrm{CO}, \mathrm{MgO}, {\mathrm{Na}}_2\mathrm{O}\right]$.

Choose an oxide which when dissolved in water form acid from $\left[{\mathrm{SO}}_2, {\mathrm{SiO}}_2, {\mathrm{Al}}_2{\mathrm{O}}_3, \mathrm{CO}, \mathrm{MgO}, {\mathrm{Na}}_2\mathrm{O}\right]$.

Choose the basic oxide from $\left[{\mathrm{SO}}_2, {\mathrm{SiO}}_2, {\mathrm{Al}}_2{\mathrm{O}}_3, \mathrm{CO}, \mathrm{MgO}, {\mathrm{Na}}_2\mathrm{O}\right]$.

Choose an amphoteric oxide from $\left[{\mathrm{SO}}_2, {\mathrm{SiO}}_2, {\mathrm{Al}}_2{\mathrm{O}}_3, \mathrm{CO}, \mathrm{MgO}, {\mathrm{Na}}_2\mathrm{O}\right]$.

Complete the following table with appropriate products and methods: