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The correct answer is A
What element is used to coat galvanized iron?
Which element is used for making of lead of a pencil?
The gas usually causing explosions in coal mines is-
The first nuclear reactor made in India is named:
Copper is extracted from which ore?
Which of the following metals is the lightest in the periodic table of elements?
Match the following gases with their typical uses:
List I (Gas) List II (Uses)
A) A...
Which element is known as the 'King of Chemicals.
Identify the pairing that is not correctly matched.
(I) Dry ice - Solid form of carbon dioxide
(II) Fullerene - An allotrope of hydr...
Which of the following statements about colloids is NOT true?