HARD
10th ICSE
IMPORTANT
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Why electrovalent compounds dissolve In water whereas covalent compounds do not.

Important Questions on Chemical Bonding

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?

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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.
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10th ICSE
IMPORTANT
Selina Icse Concise Chemistry For Class 10>Chapter 2 - Chemical Bonding>Intext Questions>Q 13
Potassium chloride is an electrovalent compound, while hydrogen chloride is a covalent compound. But, both conducts electricity in their aqueous solutions. Explain.