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Q. No.The oxidation number of carbon is correctly given for:
1. a, b, c
2. b, c, d
3. a, c, d
4. None of the above
| Compound | O.N. | |
| (a) | \(\mathrm{HN} \equiv \mathrm{C} \) | +2 |
| (b) | \(\mathrm{H}-\mathrm{C}\equiv \mathrm{N} \) | +4 |
| (c) | \(\mathrm{CCl}_4\) | +4 |
| (d) | \(\mathrm{C}_6 \mathrm{H}_{12} \mathrm{O}_6 \) | 0 |
1. a, b, c
2. b, c, d
3. a, c, d
4. None of the above
Subtopic: Introduction to Redox and Oxidation Number |
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Subtopic: Introduction to Redox and Oxidation Number |
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What is the number of moles of electrons gained by one-mole oxidizing agent in the following redox reaction?
\( \mathrm{Zn}_{(s)} + \mathrm{2HCl}_{(aq)} \rightarrow \mathrm{ZnCl_2}_{(aq)}+\mathrm {H_2} _{(g)}\)
1. 4
2. 3
3. 2
4. 1
\( \mathrm{Zn}_{(s)} + \mathrm{2HCl}_{(aq)} \rightarrow \mathrm{ZnCl_2}_{(aq)}+\mathrm {H_2} _{(g)}\)
1. 4
2. 3
3. 2
4. 1
Subtopic: Introduction to Redox and Oxidation Number |
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The oxidation states of \(\text {Cr}\) in \(\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right] \mathrm{Cl}_3\),\( \left[\mathrm{Cr}\left(\mathrm{C}_6 \mathrm{H}_6\right)_2\right] \) and \(\mathrm{K}_2\left[\mathrm{Cr}(\mathrm{CN})_2(\mathrm{O})_2\left(\mathrm{O}_2\right)\left(\mathrm{NH}_3\right)\right]\) respectively are:
1. +3, +4, and +6
2. +3, +2, and +4
3. +3, 0, and +6
4. +3, 0, and +4
1. +3, +4, and +6
2. +3, +2, and +4
3. +3, 0, and +6
4. +3, 0, and +4
Subtopic: Introduction to Redox and Oxidation Number |
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In the given reaction, the oxidation state of Cl in the major product will be:
\(\mathrm{Cl}_2 \mathrm{O}_7+\mathrm{H}_2 \mathrm{O}_{2} \rightarrow \)
1. +1
2. +2
3. +3
4. +5
\(\mathrm{Cl}_2 \mathrm{O}_7+\mathrm{H}_2 \mathrm{O}_{2} \rightarrow \)
1. +1
2. +2
3. +3
4. +5
Subtopic: Introduction to Redox and Oxidation Number |
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In the following reaction, \(X, Y\) and \(Z\) are respectively:
\(XZn+ NO^- _3+ YH^+ \rightarrow XZn^{2+}+ NH^+ _4+ ZH_2O \)
1. 4, 10, 3
2. 3, 8, 3
3. 3, 10, 3
4. 4, 3, 10
\(XZn+ NO^- _3+ YH^+ \rightarrow XZn^{2+}+ NH^+ _4+ ZH_2O \)
1. 4, 10, 3
2. 3, 8, 3
3. 3, 10, 3
4. 4, 3, 10
Subtopic: Balancing of Equations |
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Subtopic: Introduction to Redox and Oxidation Number |
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Balance the following half-reaction in acidic solution:
\(\text{NO}^-_3\rightarrow \text{NH}^+_4\)
When balanced with the smallest whole-number coefficients, what is the sum of all the coefficients and electrons used?
1. 13
2. 26
3. 15
4. 23
\(\text{NO}^-_3\rightarrow \text{NH}^+_4\)
When balanced with the smallest whole-number coefficients, what is the sum of all the coefficients and electrons used?
1. 13
2. 26
3. 15
4. 23
Subtopic: Balancing of Equations |
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Consider the given reaction:
\(\mathrm{Al}+\mathrm{Fe}_3 \mathrm{O}_4 \rightarrow \mathrm{Al}_2 \mathrm{O}_3+\mathrm{Fe}\)
What is the total number of electrons transferred in the given reaction?
1. 6
2. 8
3. 8/3
4. 24
Subtopic: Balancing of Equations |
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