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Chemistry

Chemistry
Which one of the following is not present in cement ?

Alum
Alumina
Gypsum
Clay

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Chemistry
One of the following is used to dissolve noble metals. That is

Nitric acid
Sulphuric acid
Hydrochloric acid
Aqua ragia

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Chemistry
Commercially, sodium bicarbonate is known as

Bleaching powder
Soda ash
Baking soda
Washing soda

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Chemistry
What are the number of moles of CO2 which contains 16 g of oxygen?

0.2 mole
0.25 mole
0.4 mole
0.5 mole

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Chemistry
The pH of lemon juice is expected to be

More than 7
Equal to 7
Less than 7
Nothing can be predicted

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Chemistry
What is the covalency of nitrogen in ammonia molecule

2
4
5
3

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MORE MCQ ON Chemistry

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