Valency expresses-

1. Total electrons in an atom

2. Atomicity of an element

3. Oxidation number of an element

4. Combining capacity of an element

Subtopic:  Types of Chemical Bond |
 67%
From NCERT
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Compounds that have a maximum value of lattice energy among the following, is:
 

1. NaF 2. NaCl
3. NaBr 4. NaI
Subtopic:  Lattice & Hydration Energy |
 75%
From NCERT
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A Compound with maximum ionic character is formed from:

1. Na and I 2. Cs and F
3. Cs and I 4. Na and F
Subtopic:  Ionic Bond |
 62%
From NCERT
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The crystal lattice of electrovalent compound is composed of :

1. Atoms

2. Molecules

3. Oppositely charged ions

4. Both molecules and ions

Subtopic:  Ionic Bond |
 77%
From NCERT
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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

Subtopic:  Ionic Bond |
 82%
From NCERT
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Most covalent compound among the following is :

1. AlF3 2. AlCl3
3. AlBr3 4. AlI3
Subtopic:  Covalent Bond |
 71%
From NCERT
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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

Subtopic:  Covalent Bond |
 70%
From NCERT
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Which follows octet rule-

1. FeCl2

2. AgCl

3. CaCl2

4. CuCl

Subtopic:  Types of Chemical Bond |
 66%
From NCERT
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The type of bonds present in N2O5 are-

1. Only covalent

2. Only ionic

3. Ionic and covalent

4. Covalent and coordinate

Subtopic:  Types of Chemical Bond |
 70%
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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.

Subtopic:  V.S.E.P.R & V.B.T |
 72%
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