Basic Science Practice Question and Answer
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Q: The bacteria that kill bacteria are called
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604deccfe147c16b2869dfdf- 1Antibioticfalse
- 2bacteriophagetrue
- 3Both A and Bfalse
- 4None of thesefalse
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Answer : 2. "bacteriophage"
Q: Mechanical energy is converted into electrical energy by
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5fc9cd43cac441723c82ba81- 1transformerfalse
- 2Ammeterfalse
- 3Galvanometerfalse
- 4Dynamotrue
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Answer : 4. "Dynamo"
Q: Which among the following happens in an oxidation reaction?
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607936b6b52a047fdc46902d- 1Electrons are gainedfalse
- 2Electrons are losttrue
- 3Protons are gainedfalse
- 4Protons are lostfalse
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Answer : 2. "Electrons are lost "
Q: Nucleopolyhedro virus (NPV) is used in biological control?
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604de9b5e7f3ff5d8f662666- 1For gram bee borertrue
- 2For paddy-scented bugfalse
- 3For sugarcane pyrillafalse
- 4For all thesefalse
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Answer : 1. "For gram bee borer"
Q: Which of the following metals is known as coin metal?
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5fe9a1c9755fc73bd0792d80- 1Copperfalse
- 2Silverfalse
- 3Goldfalse
- 4All of the abovetrue
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Answer : 4. "All of the above"
Q: By which process oil is converted into Vegetable Ghee?
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611b61d56d0fd147810fb1f1- 1Hydrogenationtrue
- 2Distillationfalse
- 3Oxidationfalse
- 4Reductionfalse
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Answer : 1. "Hydrogenation"
Q: Which gas is used for unnatural ripening of fruits?
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611b65926d0fd147810fb7a5- 1Ethylenetrue
- 2ethanefalse
- 3carbon dioxidefalse
- 4Acetylenefalse
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Answer : 1. "Ethylene"
Q: Solute can be separated from solution?
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611b60d6dc4e2547a1c9191e- 1filtrationfalse
- 2evaporationtrue
- 3Decantationfalse
- 4sedimentationfalse
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Answer : 2. "evaporation"
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