Assertion (A): | In the presentation \( \mathrm{E}_{\mathrm{Fe}^{3+}}^{\ominus} /_{ \mathrm{Fe}^{2+}}\) \( \text { and } \mathrm{E}_{\mathrm{Cu}^{2+}}^{\ominus} / _{\mathrm{Cu}^{\prime}} \mathrm{Fe}^{3+} / \mathrm{Fe}^{2+} \) and\(\text { } \mathrm{Cu}^{2+} / \mathrm{Cu}\) are reodox couples. |
Reason (R): | A redox couple is the combination of the oxidised and reduced forms of a substance involved in an oxidation or reduction half cell. |
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) is False but (R) is True. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following is not an example of redox reaction?
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch Column I with Column II for the oxidation states of the central atoms.
Column I |
Column II |
||
A. | 1. |
+3 |
|
B. | 2. |
+4 |
|
C. | 3. |
+5 |
|
D. | 4. |
+6 |
|
5. |
+7 |
Codes:
Options: | A | B | C | D |
1. | 4 | 5 | 3 | 1 |
2. | 1 | 2 | 3 | 5 |
3. | 5 | 4 | 3 | 2 |
4. | 4 | 5 | 3 | 2 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch the items in Column I with relevant items in Column II.
Column I |
Column II |
||
A. |
Ions having a positive charge |
1. |
+7 |
B. |
The sum of oxidation number of all atoms in a neutral molecule |
2. |
–1 |
C. |
Oxidation number of hydrogen ion. (H+) |
3. |
+1 |
D. |
Oxidation number of fluorine in NaF |
4. |
0 |
E. |
Ions having a negative charge |
5. |
Cation |
6. |
Anion |
Codes:
Options: | A | B | C | D | E |
1. | 5 | 4 | 3 | 2 | 6 |
2. | 1 | 2 | 3 | 5 | 4 |
3. | 5 | 4 | 3 | 2 | 1 |
4. | 4 | 5 | 3 | 2 | 1 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following statement(s) is/are not true about the following decomposition reaction?
a. | Potassium is undergoing oxidation |
b. | Chlorine is undergoing oxidation |
c. | Oxygen is reduced |
d. | None of the species are undergoing oxidation or reduction |
The correct choice among the above is:
1. (a, b, d)
2. (b, c, d)
3. (b, d, a)
4. None of the above
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAtom(s) with outer most electronic configuration among the following that can show variable oxidation is
(a) 3s1
(b) 3d34s2
(c) 3d24s2
(d) 3s23p3
1. (a, b, c)
2. (b, c, d)
3. (a, b, d)
4. (a, c, d)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology