HARD
10th ICSE
IMPORTANT
Earn 100

Explain why electrovalent compounds have a high melting point and boiling point while covalent compounds have low melting and boiling points. 

Important Questions on Chemical Bonding

HARD
10th ICSE
IMPORTANT
Selina Icse Concise Chemistry For Class 10>Chapter 2 - Chemical Bonding>Intext Questions>Q 10
Why electrovalent compounds dissolve In water whereas covalent compounds do not.
HARD
10th ICSE
IMPORTANT
Selina Icse Concise Chemistry For Class 10>Chapter 2 - Chemical Bonding>Intext Questions>Q 10
Explain why electrovalent compounds are usually hard crystals.
EASY
10th ICSE
IMPORTANT
Selina Icse Concise Chemistry For Class 10>Chapter 2 - Chemical Bonding>Intext Questions>Q 10

Explain the following:

Polar covalent compounds conduct electricity.

EASY
10th ICSE
IMPORTANT
Selina Icse Concise Chemistry For Class 10>Chapter 2 - Chemical Bonding>Intext Questions>Q 10

Explain the following:

Water is a polar covalent molecule?

EASY
10th ICSE
IMPORTANT
Selina Icse Concise Chemistry For Class 10>Chapter 2 - Chemical Bonding>Intext Questions>Q 11
Elements X, Y and Z have atomic numbers 6, 9 and 12 respectively. Which one forms an anion?
EASY
10th ICSE
IMPORTANT
Selina Icse Concise Chemistry For Class 10>Chapter 2 - Chemical Bonding>Intext Questions>Q 11
Elements X, Y and Z have atomic numbers 6, 9 and 12 respectively. Which one forms a cation?
EASY
10th ICSE
IMPORTANT
Selina Icse Concise Chemistry For Class 10>Chapter 2 - Chemical Bonding>Intext Questions>Q 11
Elements X, Y and Z have atomic numbers 6, 9 and 12 respectively. State type of bond between Y and Z and give its molecular formula.
MEDIUM
10th ICSE
IMPORTANT
Selina Icse Concise Chemistry For Class 10>Chapter 2 - Chemical Bonding>Intext Questions>Q 12
Taking MgCI2 as an electrovalent compound, CCI4 as a covalent compound, give any four differences between electrovalent and covalent compounds.