MEDIUM
JEE Advanced
IMPORTANT
Earn 100

Give the structure of three isomeric dibromides that could be used as starting materials for the preparation of 3,3-dimethylbut-1-yne

Important Questions on Alkynes

MEDIUM
JEE Advanced
IMPORTANT
The correct order of C-H bond length in CH3-CH3, CH2=CH2 & CHCH is:
MEDIUM
JEE Advanced
IMPORTANT
Formation of polythene from calcium carbide takes place as follows: 
Question Image
The amount of polythene obtained from 64.0 kg of CaC2 is:
EASY
JEE Advanced
IMPORTANT
Which of following compounds hydrolys is give propyne
HARD
JEE Advanced
IMPORTANT
Outline the best synthesis of 4,4-dimethyl-2-pentyne using NaNH2 in liquid NH3 and following compounds.
Question Image 
  Question Image
Question Image
Question Image