⟩ Commercial vulcanization of rubber involves—(A) sulphur(B) carbon(C) phosphorus(D) selenium
(A) sulphur
(A) sulphur
Which chemical is used to ripe the fruits?
What is the use of Dynamo?
What is the chemical name for Baking Soda?
Which the base of quartz crystal working in the watch?
Which animal uses sounds as its eyes?
Which is the heaviest body of our solar system.a)Sunb)Uranusc)Jupiterd)Saturn
How the Oil rises up the wick in a lamp?
Why does a big fire in the open appear to be fanned by strong winds?
Which absorbs the ultraviolet rays in the atmosphere?
Where the cryogenic engines are used?