Sourabh Monga Solutions for Chapter: Metals and Non-Metals, Exercise 3: PRACTICE QUESTIONS SET

Differentiate between ionic and covalent compounds on the basis of the following properties:
(a) Inter particle force of attraction.
(b) Solubility of compounds in water.
(c) Electrical conductivity.

Write the names and symbols of the two most reactive metals. Explain by drawing electronic structures how any one of the two metals react with a halogen. State any four physical properties of the compound formed.

The atomic number of an element A is $9$ and that of element B is $20$. Write down the symbols of the ions you would expect to be formed from their atoms.

The atomic number of an element X is $12$ and that of Y is $8$.
(a) Write the electronic configuration of X and Y.
(b) How these elements X and Y attain the nearest noble gas electronic configuration?
(c) What type of compound is formed between X and Y?
 

A solid compound has a high melting point. It does not conduct electricity in the solid-state but becomes a good conductor in the molten state. What type of chemical bonds are present in the compound?

What type of bonds is present in water molecule? Draw the electron-dot structure of water ${\mathrm{H}}_2\mathrm{O}$ molecule.

Show the formation of $\mathrm{MgO}$ by electron transfer method.

Show the formation of ${\mathrm{Na}}_2\mathrm{O}$ by electron transfer method.