Chemistry Questions and Answers
| 185. |
German Silver is an alloy of |
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- A. gold and silver
- B. copper, zinc and silver
- C. copper and silver
- D. copper, zinc and nickel
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| 186. |
Nail varnish remover generally contains which one of the following? |
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- A. vinegar
- B. acetone
- C. methyl alcohol
- D. benzene
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| 187. |
A part from carbon and hydrogen provide contains |
| |
- A. oygen
- B. nitrogen
- C. sulphur
- D. chlorine
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| 188. |
Green house effect causes |
| |
- A. formation of chlorophyll in plants
- B. heating of earth surface
- C. growth of plant in glass house
- D. photosynthesis in plants
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