Industrial Chemistry — Set 3
Chemistry · औद्योगिक रसायन · Questions 21–30 of 40
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1
Which metal is the best conductor of electricity?
2
Which gas is used for the artificial ripening of green fruits?
3
What is the primary constituent of 'LPG' (Liquefied Petroleum Gas)?
4
Which of the following is an alloy of Copper and Tin?
5
Which chemical is known as 'Oil of Vitriol'?
6
Which gas is evolved when washing soda is treated with hydrochloric acid?
7
What is the common name for 'Calcium Sulfate Hemihydrate'?
8
Which non-metal is the only one that exists in liquid state at room temperature?
9
Which acid is present in 'Vinegar'?
10
Which substance is used to remove the permanent hardness of water?