General Science Practice Question and Answer
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61b1dbd945c0db34860a2ec7 4 Answer : 2. "Methane"
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Q: Which of the following is an aldehyde?
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5e833ac69c3d360179c0ac07- 1Propanaltrue
- 2Propanolfalse
- 3Propinefalse
- 4Propanonefalse
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Answer : 1. "Propanal "
Q: Can the approximate age of the tree be ascertained?
1624 15e5791082ec0ee6eac1282fd
5e5791082ec0ee6eac1282fd- 1by sapping the heightfalse
- 2by sapping the diameterfalse
- 3Counting the annual rings located mainly in the tanetrue
- 4Counting the annual rings found in the branchfalse
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Answer : 3. "Counting the annual rings located mainly in the tane "
Q: The most common cause of anemia in our country is –
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5e6b78f4c34ec57f0d141839- 1Potassium deficiencyfalse
- 2Calcium deficiencyfalse
- 3Iron deficiencytrue
- 4Magnesium deficiencyfalse
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Answer : 3. "Iron deficiency "
Q: When the snowflake melts, the result will be-
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61b1dbd945c0db34860a2ec7- 1will change in water levelfalse
- 2will remain unchanged in the water leveltrue
- 3water level will decreasefalse
- 4water level will risefalse
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Answer : 2. "will remain unchanged in the water level"
Q: The main constituent of biogas is 1621 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: Is the Taj Mahal being damaged?
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5e588fecc731373e79bc6f34- 1Floods in Yamunafalse
- 2by decomposition of marble at high temperaturefalse
- 3Air pollutants from Mathura Oil Refinerytrue
- 4None of the abovefalse
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Answer : 3. "Air pollutants from Mathura Oil Refinery "
Q: Mohs scale is used to measure ________.
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610a6823986c2c5ce12d05e7- 1Elasticity of a Materialfalse
- 2Liquidity of a Substancefalse
- 3Viscosity of Substancefalse
- 4Hardness of Substancetrue
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Answer : 4. "Hardness of Substance"
Q: Is the work of 'Hanley's Loop' related?
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5e576340f07ca775556a9e96- 1From the emission mechanismtrue
- 2by the system of processfalse
- 3From urinary regenerating systemfalse
- 4From the nervous systemfalse
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Answer : 1. "From the emission mechanism "
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