General Science Practice Question and Answer
8 Q: How much blood is pumped in one heart beat?
1976 05f1953509679b57327add7f1
5f1953509679b57327add7f1- 140 to 50 mililitersfalse
- 230 to 40 mililitersfalse
- 330 to 50 mililitersfalse
- 460 to 90 mililiterstrue
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Answer : 4. "60 to 90 mililiters "
Q: The ozone layer in the atmosphere is at a height of about
1968 05db928d8889f1c0878bb001b
5db928d8889f1c0878bb001b- 125 kmfalse
- 250 kmtrue
- 3100 kmfalse
- 4200 kmfalse
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Answer : 2. "50 km"
Q: Who discovered Nitrogen?
1962 06058710b4789ef0456dc027c
6058710b4789ef0456dc027c- 1Faradayfalse
- 2Heisenbergfalse
- 3Hookefalse
- 4Rutherfordtrue
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Answer : 4. "Rutherford"
Q: The main constituent of biogas is 1955 05b5cc69de4d2b4197774c8e1
5b5cc69de4d2b4197774c8e1- 1oxygenfalse
- 2Methanetrue
- 3acetic acidfalse
- 4methyl alcoholfalse
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Answer : 2. "Methane"
Explanation :
Answer: B) Methane Explanation: The main constituent of biogas is methane (55-70%), CO2 (30-45%) and some traces of gases such as H2S and ammonia. Biogas is produced under anaerobic conditions; the process is denominated as anaerobic digestion.
Q: Which of the following is an aldehyde?
1955 05e833ac69c3d360179c0ac07
5e833ac69c3d360179c0ac07- 1Propanaltrue
- 2Propanolfalse
- 3Propinefalse
- 4Propanonefalse
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Answer : 1. "Propanal "
Q: As the frequency of a wave increases, what happens to its wavelength?
1955 05e7ee1b5d56d695255d19958
5e7ee1b5d56d695255d19958- 1It increasesfalse
- 2It remains the samefalse
- 3It decreasestrue
- 4There is no connection between the twofalse
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Answer : 3. "It decreases "
Q: Where does glycolysis take place? 1954 05b5cc698e4d2b4197774c657
5b5cc698e4d2b4197774c657- 1Mitichondriafalse
- 2Cytoplasmtrue
- 3Mitochondrial outer membranefalse
- 4None of abovefalse
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Answer : 2. "Cytoplasm"
Explanation :
Answer: B) Cytoplasm Explanation: "Glycolysis" means the splitting of glucose. The first step of the process occurs in the cytoplasm of the cell and yields a small amount of energy (measured in units of ATP) and two molecules of pyruvate. The other steps occur in the mitochondria. It is an ongoing process as your cells have a constant need for energy.
Q: Which one among the following nontoxic gases helps in formation of enzymes which ripen fruit?
1954 05dc3c4358f85a87e42a7095b
5dc3c4358f85a87e42a7095b- 1Acetylenetrue
- 2Ethanefalse
- 3Methanefalse
- 4Carbon dioxidefalse
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