Science GK Practice Question and Answer
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Q: Which of the following electromagnetic waves has the highest wavelength?
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601405e0d039355294ee28fd- 1Ultraviolet raysfalse
- 2Sunlightfalse
- 3Gamma raysfalse
- 4infrared raystrue
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Answer : 4. "infrared rays"
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 element forms the maximum number of compounds with hydrogen?
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611b62d6ccbc2b477b6dc099- 1Oxygenfalse
- 2Siliconfalse
- 3Carbontrue
- 4Nitrogenfalse
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Answer : 3. "Carbon"
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?
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611b6363ccbc2b477b6dc0d8- 1ethanefalse
- 2Methanetrue
- 3carbon dioxidefalse
- 4carbon monoxidefalse
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Answer : 2. "Methane"
Q: What is the main factor of rust in iron?
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601401d65beea84b8ecebd7c- 1oxygentrue
- 2Hydrogenfalse
- 3Nitrogenfalse
- 4Neonfalse
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Answer : 1. "oxygen"
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: 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"
Q: What will be the thermal conductivity of heavy soils with high organic content?
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604deb39e147c16b2869c770- 1lesstrue
- 2morefalse
- 3No relationfalse
- 4None of thesefalse
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Answer : 1. "less"
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