EASY
10th ICSE
IMPORTANT
Earn 100

Draw the electron dot structure of Sodium chloride. [Na = 11, Cl = 17]

Important Questions on Chemical Bonding

EASY
10th ICSE
IMPORTANT
What do you understand by a lone pair of electrons?
EASY
10th ICSE
IMPORTANT

Write a balanced chemical equation the following reaction:

Reduction of copper (II) oxide by hydrogen

EASY
10th ICSE
IMPORTANT
Draw the electron dot structure of Nitrogen. [N=7]
EASY
10th ICSE
IMPORTANT
Draw the electron dot structure of Ammonium ion. [N=7, H=1]
MEDIUM
10th ICSE
IMPORTANT
A compound with a low boiling point is:
HARD
10th ICSE
IMPORTANT

Give one word or a phrase for the following statement:

  • The chemical bond formed by a shared pair of electrons each bonding atom contributing one electron to the pair.
HARD
10th ICSE
IMPORTANT

The following table represents the elements and the atomic number. With reference to this, answer the following using only the alphabets given in the table.

Element Atomic number
P 13
Q 7
R 10

Name the element which forms an ionic compound with chlorine.

HARD
10th ICSE
IMPORTANT

Draw the electron dot diagram for the compound given below. Represent the electrons by (.) and (x) in the diagram.

  • Calcium oxide [Atomic No. of Ca=20 and O=8]