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Q. No.Subtopic: Group 16 - Preparation, Properties & Uses |
73%
Level 2: 60%+
Hints
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%
Level 1: 80%+
Hints
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 |
Subtopic: Group 16 - Preparation, Properties & Uses |
72%
Level 2: 60%+
Hints
Which of the following statements is correct regarding Fluorine?
| 1. | Fluorine is a stronger oxidising agent than chlorine. |
| 2. | Fluorine is weaker oxidising agent than chlorine. |
| 3. | Fluorine is a 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%+
Hints
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%+
Hints
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%+
Hints
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%+
Hints
| 1. | It is a radioactive substance. |
| 2. | It is a very stable substance. |
| 3. | Half-life of Radon is longer. |
| 4. | It forms variety of compounds. |
Subtopic: Group 18 - Preparation, Properties & Uses |
90%
Level 1: 80%+
Hints
Given below are two statements:
Choose the correct option:
1. Statement 1 is True, Statement 2 is False.
2. Statement 1 is False, Statement 2 is True.
3. Both Statement 1 and Statement 2 are True.
4. Both Statement 1 and Statement 2 are False.
| Statement 1: | SO2 is a sp3 hybridised molecule. |
| Statement 2: | Two S−O bonds in SO2 are not equal in length. |
Choose the correct option:
1. Statement 1 is True, Statement 2 is False.
2. Statement 1 is False, Statement 2 is True.
3. Both Statement 1 and Statement 2 are True.
4. Both Statement 1 and Statement 2 are False.
Subtopic: Group 16 - Preparation, Properties & Uses |
56%
Level 3: 35%-60%
Hints
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 |
73%
Level 2: 60%+
Hints
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