Embibe Experts Solutions for Chapter: Ionic and Covalent Bonding, Exercise 1: West Bengal Board-2019

What type of chemical bond is present in $\mathrm{CaO}$?

Write with an example, how according to Lewis concept, a covalent bond is formed.

Why the bond in sodium chloride cannot be expressed as $\mathrm{Na}-\mathrm{Cl}$?

Give one example each of a liquid and a solid covalent bond.

In which of the following compounds there is no existence of molecules? 

By giving example of an Ionic compound show that its ions do not obey the octet rule. 

Explain why the melting point of sodium chloride is much greater than that of glucose.

Show that $\mathrm{F}$ forms ionic bond with $\mathrm{Na}$ but it forms covalent bond with $\mathrm{H}$. (The atomic numbers of $\mathrm{H}, \mathrm{F}$ and $\mathrm{Na}$ are $1, 9,$and $11$ respectively).