Last Updated On [03-11-2023]
Polysubstitution is a major drawback in :
(a)
Reimer Tiemann reaction
(b)
Acetylation of aniline
(c)
Friedel Craft’s acylation
(d)
Friedel Craft’s alkylation
Polysubstitution is a major drawback in :
(a)
Reimer Tiemann reaction
(b)
Acetylation of aniline
(c)
Friedel Craft’s acylation
(d)
Friedel Craft’s alkylation
Question ID - 52511 :-
Polysubstitution is a major drawback in :
(a)
Reimer Tiemann reaction
(b)
Acetylation of aniline
(c)
Friedel Craft’s acylation
(d)
Friedel Craft’s alkylation
|
Polysubstitution is a major drawback in : |
|||
|
(a) |
Reimer Tiemann reaction |
(b) |
Acetylation of aniline |
|
(c) |
Friedel Craft’s acylation |
(d) |
Friedel Craft’s alkylation |
Polysubstitution is a major drawback in Friedel Craft’s alkylation
Next Question :
A set of 
identical cubical blocks lies at rest parallel to each other along a line on a smooth horizontal surface. The separation between the near surfaces of any two adjacent blocks is 
. The block at one end is given a speed 
towards the next one at time 
. All collision are completely elastic. Then
.png)
|
a) |
The last block starts moving at time |
b) |
The last block starts moving at time |
c) |
The centre of mass of the system will have a final speed |
d) |
The centre of mass of the system will have a final speed |
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