The volume of oxygen gas (O2) needed to completely burn 1 L of propane gas (C3H8)  (both O& propane measured at 0°C and 1 atm) will be:
1. 7 L
2. 6 L
3. 5 L
4. 10 L

Subtopic:  Equation Based Problem |
76%
From NCERT
AIPMT - 2008
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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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In the following reaction:
$$4HCl + MnO_2 \rightarrow 2H_2O + MnCl_2 + Cl_2$$

Amount(in g) of manganese dioxide that reacts with 7.3 g of HCl is:
(Atomic weight of Mn is 55)

1. 0.23
2. 5.85
3. 4.35
4. 5.18
Subtopic:  Equation Based Problem |
80%
From NCERT
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Calculate the approximate mass of  $$CO_2$$ produced  when 1 gm of butane $$(C_4H_{10})$$ is burned with
an excess of $$O_2$$ to form $$CO_2$$.
 1 1 g 2 2 g 3 3 g 4 4 g
Subtopic:  Equation Based Problem |
66%
From NCERT
Hints

In the reaction, 4NH3(g)+ 5O2(g) $\to$4NO(g) +6H2O(l)

When 1 mole of ammonia and 1 mole of O2  reacts to completion, then:

 1 1.0 mole of H2O is produced. 2 1.0 mole of NO will be produced. 3 All the oxygen will be consumed. 4 All the ammonia will be consumed.

Subtopic:  Equation Based Problem |
69%
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The mass of CaCO3 required to react completely with 25 mL of 0.75 M HCl according to the given reaction would be:

CaCO3(s) + HCl(aq) ➡ CaCl2(aq) + CO2(g) + H2O(l)

1. 0.36 g

2. 0.09 g

3. 0.96 g

4. 0.66 g

Subtopic:  Concentration Based Problem | Equation Based Problem |
62%
From NCERT
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