MEDIUM
10th West Bengal Board
IMPORTANT
Earn 100

The element M forms the ionic oxide MO. Write the formula of the compounds formed when it reacts with chlorine and sulphur separately.

Important Questions on Ionic and Covalent Bonding

EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 9 - Ionic and Covalent Bonding>EXERCISE>Q 1
The calcium atom loses 2 electrons from the valence shell to acquire the configuration of _____.
MEDIUM
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 9 - Ionic and Covalent Bonding>EXERCISE>Q 2
Chlorine atom gains one electron to acquire a stable configuration of the nearest noble gas _____.
MEDIUM
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 9 - Ionic and Covalent Bonding>EXERCISE>Q 3
The electro valency of calcium in calcium chloride is _____.
EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 9 - Ionic and Covalent Bonding>EXERCISE>Q 4
The number of lone pairs of electrons in a molecule of water is _____.
MEDIUM
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 9 - Ionic and Covalent Bonding>EXERCISE>Q 5
The covalency of sulphur in sulphuretted hydrogen is _____.
MEDIUM
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 9 - Ionic and Covalent Bonding>EXERCISE>Q 6
The nature of the bond present in calcium oxide is _____.
EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 9 - Ionic and Covalent Bonding>EXERCISE>Q 7
The electronegativities of two elements are 2.5 and 3.0. The nature of the bond formed between them is _____.
MEDIUM
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 9 - Ionic and Covalent Bonding>EXERCISE>Q 8
The total number of covalent bonds present in the ethylene molecule is _____.