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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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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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Assertion (A): The oxidation number of chromium in \(CrO_5\) is +6.
Reason (R): \(CrO_5\) has a butterfly structure.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) and (R) both are false.
Reason (R): \(CrO_5\) has a butterfly structure.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) and (R) both are false.
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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