BASIC PRINCIPLES OF ORGANIC CHEMISTRY

6 )

Which molecule all the least C-C distance?

Select correct answer from following options

(a) C₂H₆                         (b) C₂H₄

(c) C₂H₂                      (d) C₄H₈

7 )

What is the value of C – C bond length in ethyne?

8 )

 ∏ - bonding can occur by the overlapping of _________ .

9 )

In C₆H₆ and C₂H₄ , the ∠ H - C - H and are respectively __________ .

Select correct option from the following options

(a) 120 ^o , 120^o                        (b) 120 ^o , 90^o

(c) 120^o , 109 ^o 28                   (d) 180^o , 190^o28

10 )

The compound in which carbon uses only its sp3 hybrid orbital for bond formation is

Select correct option from the following options

(a) HCOOH                   (b) (NH₂)₂CO

(c) (CH₃)₃ COH            (d) (CH₃)₃ CHO