Mole SI Unit Quiz: How Much You Know About Mole SI Unit? Questions & Options

1. When 22.4L of H₂(g) is mixed with 11.2L of CL₂(g), each at STP, the moles of HCL(g) formed is equal to...

 183054 1 mole of HCL(g) 183055 2 moles of HCL(g) 183056 0.5 moles of HCL(g) 183057 1.5 moles of HCL(g)

2. 20.0g of a magnesium carbonate sample decomposes on heating to give carbon dioxide and 8.0g magnesium oxide. What will be the percentage purity of magnesium carbonate in the sample? (atomic weight of Mg=24)

 183058 75 183059 96 183060 60 183061 84

3. 6.02×10²ºmolecules of urea are present in 100 ml of its solution. The concentration of the solution is...

 183062 0.02M 183063 0.01M 183064 0.001M 183065 0.1M

4. Volume occupied by one molecule of water (density=1g cmˉ³)...

 183066 9.0×10×ˉ²³cm³ 183067 6.023×10ˉ²³cm³ 183068 3.0×10ˉ²³cm³ 183069 5.5×10ˉ²³cm³

5. The number of moles of MnOˉ₄ required to oxidize one mole of ferrous oxalate completely in an acidic medium will be...

 183070 0.6mole 183071 0.4mole 183072 7.5mole 183073 0.2mole

6. The number of moles of KMnO₄ reduced by one mole of Kl in alkaline medium is...

 183074 One fifth 183075 Five 183076 One 183077 Two

7. Percentage of Se in peroxidase anhydrase enzyme is 0.5% by weight (at. weight=78.4), then minimum molecular weight of peroxidase anhydrase enzyme is...

 183078 1.568×10³ 183079 15.68 183080 2.168×10⁴ 183081 1.568×10⁴

8. In the reaction- 4NH₃(g)+5O₂(g)+6H₂O(l) When 1 mole of ammonia and 1 mole of O₂ are made to react to completion, then...

 183082 1.0 mole of H₂O is produced 183083 1.0 mole of NO will be produced 183084 All the oxygen will be consumed 183085 All the ammonia will be consumed

9. 0.24g of a volatile gas, upon vaporization, gives 45ml vapor at NTP. What will be the vapor density of the substance? (density of H₂=0.089)...

 183086 95.93 183087 59.93 183088 95.39 183089 5.993

10. The percentage weight of Zn in white vitrol [ZnSO₄•7H₂O] is approximately equal to (at. mass of Zn=65, S=32, O=16 and H=1)...

 183090 33.65% 183091 32.56% 183092 23.65% 183093 22.65%

11. The number of gram molecules of oxygen in 6.02×10²⁴ CO molecules is...

 183094 10g molecules 183095 5g molecules 183096 1g molecule 183097 0.5g molecule

12. What is the weight of oxygen required for the complete combustion of 2.8kg of ethylene?

 183098 2.8kg 183099 6.4kg 183100 9.6kg 183101 96kg