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General Science - Questions and Answers

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666. A round worm that enters mans body through the soles of the feet is
A. Leech
B. Hookworm
C. Tapeworm
D. Trichina
Explanation:
667. Which among the following is a positively charged particle emitted by a radioactive element ?
A. Alpha ray
B. Beta ray
C. Gamma ray
D. Cathode ray
Explanation:
668. Which of the following used as a lubricant ?
A. Graphite
B. Silica
C. Diamond
D. Iron oxide
Explanation:
669. Which of the following materials are used for preparing blue - black ink ?
A. Gallic acid
B. Tannic acid
C. Ferrous sulphate
D. All of these
Explanation:
670. Rusting of iron involves
A. oxidation
B. reduction
C. decomposition
D. displacement
Explanation:
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