Chemistry General Knowledge Questions and Answers
| 29. |
The process of losing water of crystallization from a hydrated salt when exposed to air is called as |
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A. Dehydration |
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B. Hydration |
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C. Hardening |
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D. Efflorescence |
| 30. |
In surgery, metal pins are used for joining together broken bones. These metal pins remain uncorroded in the body. What is the material of these pins? |
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A. Aluminium |
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B. Copper |
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C. Iron |
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D. Titanium |
| 31. |
When acetone is reduced with zinc amalgam and HCL, it gives |
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A. Propan-1-ol |
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B. Propane |
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C. Propan-2-ol |
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D. Propan-2-al |
Gk Questions with Answers