The correct answer is A
Which one of the following contributes largely to the greenhouse effect?
Burning pyrites ore gives out
Which gas is used for converting vegetable oils into saturated fats?
Which of the following is an iron ore ?
Which mineral is the ore Of aluminium?
Water gas is the mixture of
The chemical bahaviour of an atom depends upon
When a spoon is to be electroplated with nickel the spoon is
KMN04 can be used as a/an
Brass is made of
