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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