Science General knowledge Questions
| 1. | Which among the following is a positively charged particles emitted by a radioactive element? | ||
|---|---|---|---|
| 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? | ||
|---|---|---|---|
| A. Hum | |||
| B. Decibel | |||
| C. Coulomb | |||
| D. Hertz | |||
| Answer | ||
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| 3. | Potassium permanganate is used for purifying drinking water, because | ||
|---|---|---|---|
| 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 | ||
|---|---|---|---|
| A. Earthworm | |||
| B. Frog | |||
| C. Fish | |||
| D. Man | |||
| Answer | ||
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