The correct answer is D
Which of the following is used to remove ink and rust stains on cloth?
The Bhopal tragedy was caused by the gas
Manganite is an ore/mineral of
Dry powder fire extinguishers contain
Electric bulbs are filled with :
Which mineral is the ore Of aluminium?
The gas usually causing explosions in coal mines is-
The nucleus of an atom consists of-
Who developed atom bomb ?
Which of the following is an iron ore ?
