- 1(current)
Q. No.| 1. | 40 mol | 2. | 10 mol |
| 3. | 20 mol | 4. | 30 mol |
20.0 g of a magnesium carbonate sample decomposes on heating to give carbon dioxide and 8.0 g of magnesium oxide.
The percentage purity of magnesium carbonate in the sample is:
(Atomic weight of Mg=24)
| 1. | 75 | 2. | 96 |
| 3. | 60 | 4. | 84 |
10 g of hydrogen and 64 of oxygen were filled in a steel vessel and exploded. The amount of water produced in this reaction will be:
1. 2 mol
2. 3 mol
3. 4 mol
4. 1 mol
The moles of lead (II) chloride that will be formed from a reaction between 6.5 g of PbO and 3.2 g of HCl are:
1. 0.044
2. 0.333
3. 0.011
4. 0.029
In the Haber process, 30 litres of dihydrogen and 30 litres of dinitrogen were taken for the reaction which yielded only 50% of the expected product. What will be the composition of a gaseous mixture under the above condition in the end:
| 1. | 20 litres of ammonia, 20 litres of nitrogen, 20 litres of hydrogen |
| 2. | 10 litres of ammonia, 25 litres nitrogen, 15 litres of hydrogen |
| 3. | 20 litres of ammonia, 10 litres of nitrogen, 30 litres of hydrogen |
| 4. | 20 litres of ammonia, 25 litres of nitrogen, 15 litres of hydrogen |
When 1 mole of ammonia (NH₃) reacts with 1 mole of oxygen (O₂), which of the following outcomes occurs regarding the consumption of the reactants?
| 1. | Oxygen is completely consumed. |
| 2. | Ammonia is completely consumed. |
| 3. | Both oxygen (O₂) and ammonia (NH₃) are completely consumed |
| 4. | Neither oxygen (O₂) nor ammonia (NH₃) is completely consumed. |
- 1(current)
Q. No.
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