HARD
9th Kerala Board
IMPORTANT
Earn 100

Draw the electron dot diagram of chemical bonds in methane (CH4) and ethane (C2H6).

Important Questions on Chemical Bonding

MEDIUM
9th Kerala Board
IMPORTANT
How do atoms combine together?
MEDIUM
9th Kerala Board
IMPORTANT
Why do atoms combine together?
EASY
9th Kerala Board
IMPORTANT
How are the atoms in molecules held together?
MEDIUM
9th Kerala Board
IMPORTANT
The elements of group 18 of the periodic table are Noble gases or Inert gases. What might be the reason for calling them so?
HARD
9th Kerala Board
IMPORTANT
How can the two fluorine atoms attain an octet arrangement?
HARD
9th Kerala Board
IMPORTANT

Evaluate the illustration showing the formation of a chemical bond in hydrogen chloride HCl molecule and answer the questions given below.

Question Image 

  • How many electron pairs are shared?
  • Represent chemical bond by using symbols?
HARD
9th Kerala Board
IMPORTANT

Examine the illustration of the chemical bond formation in carbon tetrachloride molecule and answer the questions given below.

Question Image

  • How many pairs of electrons are shared by the carbon atom with each chlorine atom?
  • What is the total number of electron pairs shared by the carbon atom with all the chlorine atoms?
  • How can we represent the molecule using symbols?
HARD
9th Kerala Board
IMPORTANT

P, Q, R, S are four elements. Their atomic numbers are 8, 17, 12 and 16 respectively. Find the type of chemical bond in these compounds formed by combining the following pairs of elements.

(Electronegativity values: P=3.44, Q=3.16, R=1.31, S=2.58)

  1. P, R
  2. P, S
  3. Q, R