Valency is best described as:

1. Total electrons in an atom

2. Atomicity of an element

3. Oxidation number of an element

4. Combining capacity of an element

Compounds that have a maximum value of lattice energy among the following, is:
 

A Compound with maximum ionic character is formed from:

The crystal lattice of electrovalent compound is composed of :

1. Atoms

2. Molecules

3. Oppositely charged ions

4. Both molecules and ions

Ions are formed from neutral atoms by-

1. Loss of electrons

2. Gain of electrons

3. Sharing of electrons

4. Loss and gain of electrons

Most covalent compound among the following is :

The correct order of covalent bond character among
LiCl, BeCl₂, BCl₃ and CCl₄, is:

1. LiCl < BeCl₂ > BCl₃ > CCl₄

2. LiCl > BeCl₂ < BCl₃ < CCl₄

3. LiCl < BeCl₂ < BCl₃ < CCl₄

4. LiCl > BeCl₂ > BCl₃ > CCl₄

Which follows octet rule-

1. FeCl₂

2. AgCl

3. CaCl₂

4. CuCl

The type of bonds present in N₂O₅ are-

1. Only covalent

2. Only ionic

3. Ionic and covalent

4. Covalent and coordinate

Which is not true according to VBT-

1. A covalent bond is formed by the overlapping of orbitals with unpaired electrons of opposite spins.

2. A covalent bond is formed by the overlapping of orbitals with unpaired electrons of same spin.

3. The greater the extent of overlapping the stronger is the bond.

4. Overlapping takes place only in the direction of maximum electron density of the orbital.