Chemistry General Knowledge Questions and Answers
9. | Calamine is the ore of | ||
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A. Copper | |||
B. Aluminium | |||
C. Zinc | |||
D. Silver |
Answer | ||
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10. | The alloy used in making space satellites is | ||
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A. Duralumin | |||
B. Bronze | |||
C. Aluminium bronze | |||
D. Duralumin |
Answer | ||
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11. | The fluoride ore of aluminium is | ||
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A. Cryolite | |||
B. Haematite | |||
C. Bauxite | |||
D. Corundum |
Answer | ||
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12. | Which one of the following carboxylic acids is present in the sting of red ant? | ||
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A. Acetic acid | |||
B. Butyric acid | |||
C. Lactic acid | |||
D. Formic acid |
Answer | ||
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