To produce 20 moles of ammonia via Haber's process, how many moles of hydrogen molecules are required?

 1 40 mol 2 10 mol 3 20 mol 4 30 mol
Subtopic:  Limiting Reagent | Equation Based Problem |
80%
From NCERT
NEET - 2019
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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 will be:
(Atomic weight of Mg=24)

 1 75 2 96 3 60 4 84
Subtopic:  Limiting Reagent |
65%
From NCERT
NEET - 2015
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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

Subtopic:  Limiting Reagent |
75%
From NCERT
AIPMT - 2009
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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

Subtopic:  Limiting Reagent |
58%
From NCERT
AIPMT - 2008
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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
Subtopic:  Limiting Reagent |
66%
From NCERT
AIPMT - 2003
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$4N{H}_{3}$ $+$ $5{O}_{2}$ $\to$ $6{H}_{2}O$ $+$ $4NO$

When one mole ammonia and one mole oxygen are taken:
1. Oxygen is completely consumed
2. Ammonia is completely consumed
3. Both (1) and (2) are correct
4. None of the above options is correct

Subtopic:  Limiting Reagent |
67%
From NCERT
AIPMT - 1998
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