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 |
 78%
Level 2: 60%+
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 |
 81%
Level 1: 80%+
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 |
 74%
Level 2: 60%+
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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%
Level 2: 60%+
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In the reaction, 4NH3(g)+ 5O2(g) 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 |
 70%
Level 2: 60%+
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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:

\(CaCO_3 (s)\ + \ HCl (aq)\ \rightarrow CaCl_2(aq)\ + CO_2(g)\ \\~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+ H_2O(l)\)

 

1. 0.36 g

2. 0.09 g

3. 0.96 g

4. 0.66 g

Subtopic:  Concentration Based Problem | Equation Based Problem |
 64%
Level 2: 60%+
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