- 1(current)
Q. No.For the given redox reaction, find out the coefficients a, b and c of a balanced equation respectively:
\(\mathrm{{a} {Cr}_2 {O}_7^{2-}+{bSO}_3^{2-}({aq})+{c} {H}^{+}({aq})} →\)\(\mathrm{2 {a} {Cr}^{3+}({aq})+{bSO}_4^{2-}({aq})+\frac{{c}}{2} {H}_2 {O}(\ell)} \)
\(\mathrm{{a} {Cr}_2 {O}_7^{2-}+{bSO}_3^{2-}({aq})+{c} {H}^{+}({aq})} →\)\(\mathrm{2 {a} {Cr}^{3+}({aq})+{bSO}_4^{2-}({aq})+\frac{{c}}{2} {H}_2 {O}(\ell)} \)
| 1. | 8, 1 and 3 | 2. | 1, 3 and 8 |
| 3. | 3, 8 and 1 | 4. | 1, 8 and 3 |
Subtopic: Balancing of Equations |
78%
Level 2: 60%+
NEET - 2023
Hints
For the redox reaction,
a
the correct stoichiometric coefficients of the reactants a, b, and c respectively for the balanced equation are:
| 1. | 16, 5, 2 | 2. | 2, 5, 16 |
| 3. | 2, 16, 5 | 4. | 5, 16, 2 |
Subtopic: Balancing of Equations |
82%
Level 1: 80%+
NEET - 2018
Hints
The change in oxidation number of chlorine when Cl2 gas reacts with hot and concentrated sodium hydroxide solution is:
1. Zero to +1 and Zero to –5
2. Zero to –1 and Zero to +5
3. Zero to –1 and Zero to +3
4. Zero to +1 and Zero to –3
Subtopic: Balancing of Equations |
68%
Level 2: 60%+
AIPMT - 2012
Hints
Links
Number of moles of \(MnO^-_4\) required to oxidise one mole of ferrous oxalate completely in an acidic medium will be:
| 1. | 0.6 mole | 2. | 0.4 mole |
| 3. | 7.5 moles | 4. | 0.2 mole |
Subtopic: Balancing of Equations |
57%
Level 3: 35%-60%
AIPMT - 2008
Hints
a Zn + b NO3- + cH+ → d NH4+ + e H2O + f Zn+2
In the reaction given above, the correct values of a, b, c, d, e, and f respectively are:
In the reaction given above, the correct values of a, b, c, d, e, and f respectively are:
| a | b | c | d | e | f | |
| 1. | 2 | 4 | 6 | 8 | 4 | 2 |
| 2. | 1 | 4 | 10 | 3 | 1 | 4 |
| 3. | 4 | 1 | 10 | 1 | 3 | 4 |
| 4. | 10 | 4 | 1 | 3 | 4 | 2 |
Subtopic: Balancing of Equations |
73%
Level 2: 60%+
AIPMT - 1999
Hints
- 1(current)
Q. No.
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