Science for Class 10>Chapter 2 - Chemical Bonding>Let us answer these>Q 7

HARD

10th Manipur Board

IMPORTANT

Earn 100

A metal $A$ (atomic number $19$ ) burns in Chlorine to produce a white solid chloride $ACl$ . By means of diagram, show the arrangement of electrons in $A$ before and after the reaction.

Important Questions on Chemical Bonding

HARD

10th Manipur Board

IMPORTANT

Science for Class 10>Chapter 2 - Chemical Bonding>Let us answer these>Q 8

Give reason for the following: Ionic compounds have high melting and boiling points.

HARD

10th Manipur Board

IMPORTANT

Science for Class 10>Chapter 2 - Chemical Bonding>Let us answer these>Q 8

Give reason for the following: Ionic compounds are good conductors of electricity in fused state or in aqueous solution.

HARD

10th Manipur Board

IMPORTANT

Science for Class 10>Chapter 2 - Chemical Bonding>Let us answer these>Q 1

Using dots

(\circ)

and crosses

(\times)

to represent valence electrons, show the formation of covalent bonds in Carbon dioxide.

HARD

10th Manipur Board

IMPORTANT

Science for Class 10>Chapter 2 - Chemical Bonding>Let us answer these>Q 1

Using dots

(\circ)

and crosses

(\times)

to represent valence electrons, show the formation of covalent bonds in Carbon tetrachloride.

HARD

10th Manipur Board

IMPORTANT

Science for Class 10>Chapter 2 - Chemical Bonding>Let us answer these>Q 2

Why does Carbon tetrachloride not conduct electricity?

HARD

10th Manipur Board

IMPORTANT

Science for Class 10>Chapter 2 - Chemical Bonding>Let us answer these>Q 3

How does a co-ordinate bond differ from a normal covalent bond?

HARD

10th Manipur Board

IMPORTANT

Science for Class 10>Chapter 2 - Chemical Bonding>Let us answer these>Q 4

Why does

H_{2}

molecule exists while

{He}_{2}

molecule does not exist?

HARD

10th Manipur Board

IMPORTANT

Science for Class 10>Chapter 2 - Chemical Bonding>Let us answer these>Q 5

Why is

HF

polar while,

H_{2}

and

F_{2}

are not polar?