Chemical Process
The major use of butadiene is

In the manufacture of synthetic rubber
As a plasticiser for unsaturated polyester
None of these
As an anti-skinning agent in paint

ANSWER DOWNLOAD EXAMIANS APP

Chemical Process
Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H₂O = Fe₃O₄ + 4H₂, is not practised, as it is

A discontinuous reaction (requiring regeneration of iron by water gas intermittently)
A slow reaction
All of these
Still in development stage (by employing fluidised bed technique)

ANSWER DOWNLOAD EXAMIANS APP