Basic Science Practice Question and Answer
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Q: Why is sodium stored in kerosene?
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611b646accbc2b477b6dc1e8- 1To maintain in its original formfalse
- 2It gets oxidised in airtrue
- 3evaporation starts in the airfalse
- 4it starts burning in airfalse
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Answer : 2. "It gets oxidised in air"
Q: What are glyceridia species used?
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604de8dad4491561f1df586e- 1in the form of green manurefalse
- 2Green leaf as composttrue
- 3Both A and Bfalse
- 4None of thesefalse
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Answer : 2. "Green leaf as compost"
Q: The major component of natural gas is-
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5f7466d3bb26e87e5eea9c54- 1Methanetrue
- 2Ethanefalse
- 3Butanefalse
- 4Hydrogenfalse
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Answer : 1. "Methane"
Q: The function of dynamo is?
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601407eed039355294ee53a6- 1Converting electrical energy into mechanical energyfalse
- 2Converting mechanical energy into electrical energytrue
- 3Converting electrical energy into heatfalse
- 4None of thesefalse
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Answer : 2. "Converting mechanical energy into electrical energy"
Q: Is water heating in the kettle an example?
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5fc9cbafcac441723c82b9b7- 1Conductionfalse
- 2Convectiontrue
- 3Radiationfalse
- 4Condensationfalse
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Answer : 2. "Convection"
Q: Which metal has the highest melting point?
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6014062d2a5c813e157f7052- 1Osmiumfalse
- 2Tungstentrue
- 3Molybdenumfalse
- 4aluminumfalse
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Answer : 2. "Tungsten"
Q: Which of the following destroys the ozone layer?
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6089255f06b39f63ea8fb990- 1Carbonfalse
- 2Chlorinetrue
- 3Siliconfalse
- 4Sulphurfalse
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Answer : 2. "Chlorine "
Q: The world's highest per capita carbon dioxide emitter is: -
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5f6048e92eed863f3a806de8- 1Qatartrue
- 2United Statesfalse
- 3Chinafalse
- 4Indiafalse
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Answer : 1. "Qatar"
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