Chemistry

Q51

What is the molecular weight of Ammonia (NH3) ________ ?

Q54

Day and night are the results of__________?

Q55

The G20 Summit in 2025, hosted by Brazil, placed major emphasis on:

Q56

Potassium meta-bisulphite is used as a food preservative for?

Q57

Brass gets discoloured in air because of the presence of which of the following gases in air ________ ?

Q58

A total of __________ amendments to the constitution of 1973 have been passed by the Parliament?

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