Organic Chemistry (Tetravalence of Carbon: Shapes of Organic Compounds) Important Questions

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Tetravalence of Carbon: Shapes of Organic Compounds

1. Arrange the following in the increasing order of electronegativity.

a) sp2 < sp < sp3

b) sp3 < sp2 < sp

c) sp < sp2 < sp3

d) sp3 < sp < sp2

Answer: sp3 < sp2 < sp

2. σ bonds are stronger than π bonds.

a) True

b) False

Answer: True

3. How many σ and π bonds are present in the following molecule?

N≡C-CH-C≡N

a) σ = 5; π = 4

b) σ = 6; π = 3

c) σ = 4; π = 2

d) σ = 3; π = 5

Answer: σ = 5; π = 4

4. What is the valency of carbon?

a) Pentavalent

b) Divalent

c) Trivalent

d) Tetravalent

Answer: Tetravalent

5. What is the hybridization of CH3CH2CH2CN?

a) sp, sp3

b) sp2, sp3

c) sp

d) sp, sp2

Answer: sp, sp3

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