Science General knowledge Questions
1. | Which among the following is a positively charged particles emitted by a radioactive element? | ||
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A. Alpha ray | |||
B. Beta ray | |||
C. Gamma ray | |||
D. Cathode ray |
Answer | ||
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2. | What is the unit for measuring the pitch or frequency of sound? | ||
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A. Hum | |||
B. Decibel | |||
C. Coulomb | |||
D. Hertz |
Answer | ||
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3. | Potassium permanganate is used for purifying drinking water, because | ||
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A. It is an oxidising agent | |||
B. It is a reducing agent | |||
C. It dissolves the impurities of water | |||
D. It is a sterilising agent |
Answer | ||
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4. | Hemoglobin is dissolved in the plasma of | ||
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A. Earthworm | |||
B. Frog | |||
C. Fish | |||
D. Man |
Answer | ||
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