| 1 |
Silver is a ____________ metal. |
- A. Pure
- B. Noble
- C. None
- D. All
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| 2 |
Which one metal can be cut with a knife? |
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| 3 |
Sodium - potassium alloy is used in nuclear reactor as a:<br> |
- A. catalyst <br>
- B. coolant <br>
- C. reactant <br>
- D. absorber<br>
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| 4 |
The core of the earth is ____________ than crust. |
- A. LIghter
- B. Heavier
- C. Both
- D. Nil
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| 5 |
The earth is made up of ___________ % of calcium. |
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| 6 |
Which one of the following non-metal is lustrous?<br> |
- A. Sulphur<br>
- B. Phosphorus <br>
- C. Iodine<br>
- D. Carbon<br>
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| 7 |
Metal can form ions carrying charges:<br> |
- A. Uni-positive<br>
- B. Di-positive<br>
- C. Tri-Positive <br>
- D. All of them<br>
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| 8 |
Which of the following is less malleable?<br> |
- A. Sodium<br>
- B. Iron<br>
- C. Gold <br>
- D. Sliver <br>
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| 9 |
____________ Is drawn in wires. |
- A. Gold
- B. Silver
- C. Helium
- D. Nil
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| 10 |
All non-metals are non-conductor of heat and electricity except it |
- A. Phosphorous
- B. Sulphur
- C. Graphite
- D. Iodine
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