Science GK Practice Question and Answer
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Q: Black soil color is black due to presence of abundant minerals?
724 0604debf8a01bc447899e5e44
604debf8a01bc447899e5e44- 1Zincfalse
- 2Copperfalse
- 3Manganesetrue
- 4Aluminumfalse
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Answer : 3. "Manganese"
Q: The marshy gas which is produced on decomposition of organic matter and is mostly found in coal mines, is the name of that gas?
719 0611b6363ccbc2b477b6dc0d8
611b6363ccbc2b477b6dc0d8- 1ethanefalse
- 2Methanetrue
- 3carbon dioxidefalse
- 4carbon monoxidefalse
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Answer : 2. "Methane"
Q: Which gas is used for unnatural ripening of fruits?
717 0611b65926d0fd147810fb7a5
611b65926d0fd147810fb7a5- 1Ethylenetrue
- 2ethanefalse
- 3carbon dioxidefalse
- 4Acetylenefalse
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Answer : 1. "Ethylene"
Q: Which of the following gas is not present in the atmosphere?
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611b611714663c47a233f052- 1Nitrogenfalse
- 2Heliumfalse
- 3Chlorinetrue
- 4Kryptonfalse
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Answer : 3. "Chlorine"
Q: Which substance is added to make natural rubber hard and bouncy?
716 0611b6423dc4e2547a1c91bd7
611b6423dc4e2547a1c91bd7- 1Petrol Jellyfalse
- 2sulfuric acidfalse
- 3sulfurtrue
- 4Spongefalse
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Answer : 3. "sulfur"
Q: Solute can be separated from solution?
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611b60d6dc4e2547a1c9191e- 1filtrationfalse
- 2evaporationtrue
- 3Decantationfalse
- 4sedimentationfalse
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Answer : 2. "evaporation"
Q: What poison group is suitable for juicy juvenile insects?
704 0604dec8ba01bc447899e5e5b
604dec8ba01bc447899e5e5b- 1gastric venomfalse
- 2poisoningfalse
- 3Somatic / all round venomtrue
- 4tactile venomfalse
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Answer : 3. "Somatic / all round venom"
Q: Which of the following is essentially produced in the fermentation process?
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611b63e16d0fd147810fb343- 1ethyl alcoholtrue
- 2Methyl alcoholfalse
- 3acetic acidfalse
- 4yeastfalse
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Answer : 1. "ethyl alcohol"
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