Which of the statements are not true for AlCl3-

1. AlCl3 fumes in moist air forms HCl with moisture

2. Anhydrous AlCl3 exists as Al2Cl6

3. Anhydrous AlCl3 is ionic

4. Anhydrous AlCl3 is trigonal planar molecule at higher temperature

Concept Questions :-

Covalent Bonding
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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

Concept Questions :-

Types of Bonding
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Which of the following has maximum bond strength-

1. O2

2. O2+

3. O2-

4. O22-

Concept Questions :-

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Out of following which has maximum value of lattice energy

1. NaF

2. NaCl

3. NaBr

4. NaI

Concept Questions :-

Acid, Base and Fajan's Rule
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Compound with maximum ionic character is formed from-

1. Na and Cl

2. Cs and F

3. Cs and I

4. Na and F

Concept Questions :-

Ionic Bonding
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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

Concept Questions :-

Ionic Bonding
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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

Concept Questions :-

Ionic Bonding
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Which of the following is most covalent-

1. AlF3

2. AlCl3

3. AlBr3

4. AlI3

Concept Questions :-

Covalent Bonding
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Among LiCl, BeCl2, BCl3 and CCl4, the covalent bond character follows the order-

1. LiCl < BeCl2 > BCl3 > CCl4

2. LiCl > BeCl2 < BCl3 < CCl4

3. LiCl < BeCl2 < BCl3 < CCl4

4. LiCl > BeCl2 > BCl3 > CCl4

Concept Questions :-

Covalent Bonding
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Which follows octet rule-

1. FeCl2

2. AgCl

3. CaCl2

4. CuCl

Concept Questions :-

Types of Bonding
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