Entry Test MCQ :: Group VA and VIA Elements
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| 1. |
Which of the following is different with respect to physical appearance? |
| A. |
Arsenic |
B. |
Phosphorus |
| C. |
Antimony |
D. |
Bismuth |
Answer: Option B
Explanation:
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| 2. |
Which one of the followings possesses melting point below 0?C? |
| A. |
Nitrogen |
B. |
Phosphorus |
| C. |
Carbon |
D. |
Bismuth |
Answer: Option A
Explanation:
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| 3. |
Compounds of nitrogen and phosphorus are mostly |
| A. |
ionic |
B. |
covalent |
| C. |
polar |
D. |
all varieties are possible |
Answer: Option B
Explanation:
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| 4. |
The most electronegative element among the following is |
Answer: Option B
Explanation:
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| 5. |
SO3 is not absorbed in water directly because |
| A. |
Reaction is exothermic |
B. |
It is insoluble in water |
| C. |
Dilute acid is produced |
D. |
All of above |
Answer: Option A
Explanation:
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| 6. |
Phosphene gas will be produced if phosphorous acid is subjected to |
| A. |
Oxidation |
B. |
Reduction |
| C. |
Decomposition |
D. |
Both b & c |
Answer: Option D
Explanation:
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| 7. |
Which of the following will give phosphoric acid one reaction with water |
| A. |
PCI5 |
B. |
P2O3 |
| C. |
P2O5 |
D. |
All of the above |
Answer: Option D
Explanation:
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| 8. |
Which one of following is not a property of pure quartz? |
| A. |
Coloured solid |
B. |
Brittle |
| C. |
Hard |
D. |
All of above |
Answer: Option A
Explanation:
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| 9. |
Phosphorus is a Greek word and it means |
| A. |
Light bearing |
B. |
Fire |
| C. |
Impure |
D. |
Tetrahedral |
Answer: Option A
Explanation:
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| 10. |
Which of the following does not contain phosphorus? |
| A. |
Yolk of egg |
B. |
Bone |
| C. |
Nerves |
D. |
Steel |
Answer: Option D
Explanation:
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