GK Practice Question and Answer
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Q: The major component of natural gas is-
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5f7466d3bb26e87e5eea9c54- 1Methanetrue
- 2Ethanefalse
- 3Butanefalse
- 4Hydrogenfalse
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Answer : 1. "Methane"
Q: Maximum density of water is-
1384 05f746665bb26e87e5eea9b4f
5f746665bb26e87e5eea9b4f- 10°Cfalse
- 2100°Cfalse
- 325°Cfalse
- 44°Ctrue
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Answer : 4. "4°C"
Q: Lightest metal is___
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5f7465f1a921aa16e68bd6a5- 1Potassiumfalse
- 2Lithiumtrue
- 3Sodiumfalse
- 4Aluminumfalse
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Answer : 2. "Lithium"
Q: The reason for permanent hardness of water is-
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5f746583a921aa16e68bd2df- 1Carbonates of calcium and magnesiumfalse
- 2Bicarbonates of calcium and magnesiumfalse
- 3Chloride and sulfate of calcium and magnesiumtrue
- 4None of the abovefalse
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Answer : 3. "Chloride and sulfate of calcium and magnesium"
Q: Which chemical is used in making artificial rainfall?
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5f745ddda921aa16e68b9ec1- 1Sodium iodidefalse
- 2Silver bromidefalse
- 3Ethylene bromidefalse
- 4Silver iodidetrue
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Answer : 4. "Silver iodide"
Q: Wood objects are coated on them to protect them from insects.
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5f745b7bbb26e87e5eea40cc- 1Zinc chloridetrue
- 2Sodium chloridefalse
- 3Ammonium chloridefalse
- 4Silver bromidefalse
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Answer : 1. "Zinc chloride"
Q: Nowadays yellow lamps are being used in abundance in street lights. Which of the following gas are used in these lamps?
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5f745b0ff66ef56de842ca1c- 1Sodiumtrue
- 2Neonfalse
- 3Hydrogenfalse
- 4Nitrogenfalse
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Answer : 1. "Sodium"
Q: The tendency to receive electrons is called-
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5f745a3ebb26e87e5eea3a72- 1Oxidationfalse
- 2Reductiontrue
- 3Catalysisfalse
- 4Motivationfalse
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Answer : 2. "Reduction"
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