Science GK Practice Question and Answer
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Q: Which substance is added to make natural rubber hard and bouncy?
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611b6423dc4e2547a1c91bd7- 1Petrol Jellyfalse
- 2sulfuric acidfalse
- 3sulfurtrue
- 4Spongefalse
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Answer : 3. "sulfur"
Q: By which process oil is converted into Vegetable Ghee?
1104 0611b61d56d0fd147810fb1f1
611b61d56d0fd147810fb1f1- 1Hydrogenationtrue
- 2Distillationfalse
- 3Oxidationfalse
- 4Reductionfalse
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Answer : 1. "Hydrogenation"
Q: Solute can be separated from solution?
1102 0611b60d6dc4e2547a1c9191e
611b60d6dc4e2547a1c9191e- 1filtrationfalse
- 2evaporationtrue
- 3Decantationfalse
- 4sedimentationfalse
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Answer : 2. "evaporation"
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: Filling helium in balloons is considered more useful than hydrogen, because?
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611b631cccbc2b477b6dc0be- 1it is cheapfalse
- 2less heavyfalse
- 3more flying abilityfalse
- 4it does not form explosive mixture with airtrue
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Answer : 4. "it does not form explosive mixture with air"
Q: The filament of an electric bulb is made up of
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5fc9cb5b5c47b65b5b2c1e98- 1Chromiumfalse
- 2Tungstentrue
- 3Copperfalse
- 4Zincfalse
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Answer : 2. "Tungsten"
Q: Which of the following is essentially produced in the fermentation process?
1069 0611b63e16d0fd147810fb343
611b63e16d0fd147810fb343- 1ethyl alcoholtrue
- 2Methyl alcoholfalse
- 3acetic acidfalse
- 4yeastfalse
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Answer : 1. "ethyl alcohol"
Q: Which of the following method is adopted to remove salt from sea water?
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611b619adc4e2547a1c919b7- 1sublimationfalse
- 2Evaporationtrue
- 3crystallizationfalse
- 4distillationfalse
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Answer : 2. "Evaporation"
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