Entry Test MCQ :: The Halogens and The Noble Gases
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| 1. |
Among the halogens the rare element is |
| A. |
Fluorine |
B. |
Chlorine |
| C. |
Astatine |
D. |
Iodine |
Answer: Option C
Explanation:
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| 2. |
The colour of chlorine gas is |
| A. |
pale yellow |
B. |
freenish yellow |
| C. |
reddish brown |
D. |
grayish black |
Answer: Option B
Explanation:
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| 3. |
Vander Waals forces are stronger in |
Answer: Option D
Explanation:
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| 4. |
The most powerful oxidizing agent among the halogens is |
Answer: Option A
Explanation:
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| 5. |
Which of the following statements is incorrect about fluorine |
| A. |
fluorine is restricted to -1 oxidation state |
B. |
fluorine follows octet rule and as well as extended octet rule |
| C. |
fluorine has lowest dissociation energy among the halogens |
D. |
both b and c |
Answer: Option D
Explanation:
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| 6. |
The halogen which reacts spontaneously with gold (Au) to form Au+3 is |
Answer: Option B
Explanation:
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| 7. |
Which one of the following is the weakest acid in water |
Answer: Option A
Explanation:
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| 8. |
The halogen which reacts very slowly with halogen is |
| A. |
Fluorine |
B. |
Chlorine |
| C. |
Bromine |
D. |
Iodine |
Answer: Option D
Explanation:
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| 9. |
Which of the following represents the correct electronic configuration of VII A group elements in the ground state? |
Answer: Option C
Explanation:
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| 10. |
The halogen having highest electron affinity is |
| A. |
Fluorine |
B. |
Chlorine |
| C. |
Bromine |
D. |
Iodine |
Answer: Option B
Explanation:
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