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Q. No.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)
Subtopic: Group 16 - Preparation, Properties & Uses |
89%
Level 1: 80%+
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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%
Level 2: 60%+
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Which of the following statements is correct regarding Fluorine?
| 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%
Level 1: 80%+
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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 |
86%
Level 1: 80%+
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Sea is the greatest source of :
1. Halogens.
2. Noble gases.
3. Alkaline earth metals.
4. Chalcogens.
Subtopic: Group 17 - Preparation, Properties & Uses |
75%
Level 2: 60%+
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The bleaching action of Cl2 is due to formation of :
1. Nascent chlorine.
2. Nascent oxygen.
3. Oxygen gas.
4. Hypochlorous acid.
1. Nascent chlorine.
2. Nascent oxygen.
3. Oxygen gas.
4. Hypochlorous acid.
Subtopic: Group 17 - Preparation, Properties & Uses | Group 16 - Preparation, Properties & Uses |
71%
Level 2: 60%+
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The poisonous gases which contain(s) chlorine atom(s) is/are-
1. Phosgene
2. Mustard gas
3. Both 1 and 2
4. None of the above
1. Phosgene
2. Mustard gas
3. Both 1 and 2
4. None of the above
Subtopic: Group 17 - Preparation, Properties & Uses |
78%
Level 2: 60%+
Hints
Given below are two statements:
| Assertion (A): | ICl is more reactive than I2 . |
| Reason (R): | I−Cl bond in ICl is weaker than I−I bond in I2 |
| 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 18 - Preparation, Properties & Uses |
87%
Level 1: 80%+
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Subtopic: Group 18 - Preparation, Properties & Uses |
89%
Level 1: 80%+
Hints
Consider the following reaction,
XeF6 + 2H2O → X + 4HF
The product X is:
1. XeO2F2
2. XeO3
3. XeOF4
4. None of the above
XeF6 + 2H2O → X + 4HF
The product X is:
1. XeO2F2
2. XeO3
3. XeOF4
4. None of the above
Subtopic: Group 18 - Preparation, Properties & Uses |
75%
Level 2: 60%+
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