Question

The correct order of increasing bond length of C-H, C-O, C-C and C = C is

C-H < C-O < C-C < C = C
C-H < C = C < C-O < C-C
C-C < C = C < C-O < C-H
C-O < C-H < C-C < C = C​

Answer 1

Answer:

C-H < C=C < C-O < C-C

Both carbon and hydrogen have small size so their bond length is also small

Answer 2

The order given in option (b) is the correct order of increasing bond length of C-H, C-O, C-C and C = C.

Explanation:

• In an covalently bonded atoms, the length between the two nuclei is called as bond length.
• To arrange the given bond types according to the increasing order of bond length, the bond length value of each type must be first identified.
• Accordingly, the bond length value of given bond types are as follows:

   C - H : 1.09

   C - O : 1.43

   C - C : 1.54

   C = C : 1.34

• When the values are arranged in the increasing order it gives the following arrangement:

1.09 < 1.34 < 1.43 < 1.54

• Accordingly, the bond types corresponding to the values are arranged in the increasing order it gives the following arrangement as given in option (b):

C - H < C = C < C - O < C - C

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