Atoms Molecules And Chemical Arithmetic QUESTIONS AND ANSWERS

IIT JEE : Atoms Molecules And Chemical Arithmetic QUESTIONS AND ANSWERS :: part2 : 1 to 5

Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :

1.The volume of oxygen required for complete combustion of 20 ml of ethane is

30 ml

60 ml

40 ml

50 ml.

2.Sodium carbonate crystals lose water molecules on exposure to atmosphere. The related property is called

Deliquescence

Fluorescence

Efflorescence

Luminescence.

3.The number of moles of oxygen in one litre of air (21% oxygen by volume) at S.T.P. would be

0.186 mol

0.21 mol

2.10 mol

0.0093 mol.

4.4 g of hydrogen is ignited with 4 g of oxygen, the amount of water Formed is

2.5 g

0.5 g

4.5 g

8 g.

5.The molality of a solution containing 5 g of sodium hydroxide in 250 g of solution

0.5 m

1.0 m

2.0 m

0.1 m.

More Atoms Molecules And Chemical Arithmetic QUESTIONS AND ANSWERS available in next pages

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