Chemical BondingHard

Question

The correct increasing order of $C - H(A)$, $C - O(B),C = O(C)$ and $C \equiv N(D)$ bonds in terms of covalent bond length is:

Options

A.$, $C - O
B.,C = O
C.$ and $C \equiv N
D.

64. The correct increasing order of $C - H$, $C - O(B),C = O(C)$ and $C \equiv N(D)$ bonds in terms of covalent bond length is:

(1) A $<$ B $<$ C $<$ D

(2) A $<$ D $<$ C $<$ B

(3) D $<$ C $<$ B $<$ A

(4) D $<$ C $<$ A $<$ B

Solution

$\ C - H(A)\ 107pm$

$$C \equiv N(D)\ 116pm $$C-O(B) 143 pm

$$C = O(C)\ 121pm$$

2-Chlorobutane is optically active and chiral molecule

Molecular formula $\Rightarrow C_{4}H_{9}Cl$

Molar mass $= 48 + 9 + 35.5 = 92.5$

$$\% OC = \frac{48}{92.5} \times 100 = 51.89\%$$

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