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Q. No.
Assertion (A):
O3 acts as a powerful oxidizing agent.
Reason (R):
Ozone decomposes readily on heating to give a molecule of oxygen and nascent oxygen.
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.
Subtopic: Group 16 - Preparation, Properties & Uses |
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O3 can be estimated quantitatively by reacting it with among the following compounds:
1. Iodine
2. Potassium iodide.
3. Chlorine.
4. Sodium chloride.
1. Iodine
2. Potassium iodide.
3. Chlorine.
4. Sodium chloride.
Subtopic: Group 16 - Preparation, Properties & Uses |
74%
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Correct statement among the following on reaction of sulphur dioxide with an aqueous solution of Fe(III) salt is -
1. Redox reaction occurs
2. Disproportionation reaction occurs
3. Displacement reaction occurs
4. Combination reaction occurs
1. Redox reaction occurs
2. Disproportionation reaction occurs
3. Displacement reaction occurs
4. Combination reaction occurs
Subtopic: Group 16 - Preparation, Properties & Uses |
58%
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| Statement 1: | SO2 is a sp3 hybridised molecule. |
| Statement 2: | Two S−O bonds in SO2 are not equal in length. |
2. Statement 1 is False, Statement 2 is True.
3. Both Statements 1 and Statement 2 are True.
4. Both Statements 1 and Statements 2 are False.
Subtopic: Group 16 - Preparation, Properties & Uses |
56%
From NCERT
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Subtopic: Group 16 - Preparation, Properties & Uses |
73%
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The incorrect statement about H2SO4 is:
| 1. | It is used in the fertilizer industry. |
| 2. | It is used in the manufacture of pigments, paints, and detergents. |
| 3. | It is used in the manufacture of storage batteries. |
| 4. | It is a weak dehydrating agent. |
Subtopic: Group 16 - Preparation, Properties & Uses |
86%
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Condition(s)to maximize the yield of H2SO4 by Contact process is/are :
1. Low temperature.
2. High temperature.
3. High pressure.
4. Both (1) and (3)
1. Low temperature.
2. High temperature.
3. High pressure.
4. Both (1) and (3)
Subtopic: Group 16 - Preparation, Properties & Uses |
89%
From NCERT
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The relation between Ka2 and Ka1 for H2SO4 in water is :
1. Ka2 << Ka1
2. Ka2 = Ka1
3. Ka2 >> Ka1
4. Can't be defined.
1. Ka2 << Ka1
2. Ka2 = Ka1
3. Ka2 >> Ka1
4. Can't be defined.
Subtopic: Group 16 - Preparation, Properties & Uses |
73%
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Correct statement among the following regarding flourine is:
| 1. | Fluorine is stronger oxidising agent than chlorine. |
| 2. | Fluorine is weaker oxidising agent than chlorine. |
| 3. | Fluorine is stronger reducing agent than chlorine. |
| 4. | Bond dissociation energy of fluorine is more than chlorine. |
Subtopic: Group 17 - Preparation, Properties & Uses |
88%
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The anomalous behaviour of fluorine among the following is/are :
1. Formation of only one oxoacid.
2. High electronegativity.
3. Low electronegativity.
4. Both (1) and (2)
1. Formation of only one oxoacid.
2. High electronegativity.
3. Low electronegativity.
4. Both (1) and (2)
Subtopic: Group 17 - Preparation, Properties & Uses |
87%
From NCERT
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