Give an example of a molecule with triple bond.

Important Questions on Elementary Idea of Bonding

HARD

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 2 - Elementary Idea of Bonding>EXERCISES>Q 13

What is the electronic structure of the molecule of ethylene?

HARD

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 2 - Elementary Idea of Bonding>EXERCISES>Q 14

What is the electronic structure of the molecule of carbon dioxide?

HARD

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 2 - Elementary Idea of Bonding>EXERCISES>Q 1

Distinguish between ionic and covalent compounds.

EASY

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 2 - Elementary Idea of Bonding>EXERCISES>Q 2

Describe the bond that holds two hydrogen atom together in a hydrogen molecule $\left({\mathrm{H}}_2\right)$.

MEDIUM

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 2 - Elementary Idea of Bonding>EXERCISES>Q 3

Two argon atoms do not form a covalent bond to give an argon molecule ${\mathrm{Ar}}_2$. Why?

HARD

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 2 - Elementary Idea of Bonding>EXERCISES>Q 4

The elements $\mathrm{W}, \mathrm{X}, \mathrm{Y} \& \mathrm{Z}$ have atomic numbers $7, 9, 10 \& 11$ respectively. Write the formula of the compound you would expect to be formed between the following pairs of elements and indicate the type of bonding present.
a) $\mathrm{W} \& \mathrm{X}$
b) $\mathrm{X} \& \mathrm{X}$
c) $\mathrm{W} \& \mathrm{Z}$
d) $\mathrm{Y} \& \mathrm{Y}$

HARD

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 2 - Elementary Idea of Bonding>EXERCISES>Q 5

The elements $\mathrm{X} \& \mathrm{Y}$ has following configurations –
$\mathrm{X}- 2,6$
$\mathrm{Y}- 2,8,8,2$
What is the nature of the bond between $\mathrm{X} \& \mathrm{Y}$.

HARD

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 2 - Elementary Idea of Bonding>EXERCISES>Q 6

A metal $\mathrm{A}$ (atomic number $19$) burns with chlorine to produce a white solid chloride $\mathrm{B}$. By means of diagrams show the arrangements of electrons in $\mathrm{A}$ both before and after the reaction.