Chemistry General Knowledge Questions Practice Question and Answer
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Q: What is the common name of CaoCl2?
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609e4cd76397877f31963e9f- 1Washing Sodafalse
- 2Bleaching Powdertrue
- 3Baking Powderfalse
- 4Baking Sodafalse
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Answer : 2. "Bleaching Powder "
Q: What is the basic element of all organic compounds?
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5f7456a94637db732832dd4c- 1Nitrogenfalse
- 2Oxygenfalse
- 3Carbontrue
- 4Sulfurfalse
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Answer : 3. "Carbon"
Q: 'Every substance in the world is made up of very fine particles.' Who said this first?
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5fe9a0d9755fc73bd079298a- 1Daltontrue
- 2Kanadfalse
- 3Rutherfordfalse
- 4Avogadrofalse
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Answer : 1. "Dalton"
Q:Read the following questions carefully and answer them.
The advantage of detergents over soaps is
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63aaa809afa10611461dc17d- 1Detergents are soluble in waterfalse
- 2Detergents could not give much latherfalse
- 3Detergents give lather even with hard watertrue
- 4Soaps give lather with only soft waterfalse
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Answer : 3. "Detergents give lather even with hard water "
Q: Neutron was discovered -
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61655f2dd881f961723229c2- 1Chadwicktrue
- 2Newtonfalse
- 3Rutherfordfalse
- 4Thomsonfalse
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Answer : 1. "Chadwick "
Q: A radio-active substance has a half life of six months. Three-fourth of the substance will decay in____.
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5f48d6b3e7f09063e630a3d9- 1Six monthsfalse
- 2Ten monthsfalse
- 3Twelve monthstrue
- 4Twenty four monthsfalse
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Answer : 3. "Twelve months"
Q: Substances that have a sour taste and which makes a solution of blue litmus red are called?
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5f697b91397b1a52908c03b2- 1acidtrue
- 2saltsfalse
- 3consumedfalse
- 4Basefalse
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Answer : 1. "acid"
Q: How are 'anions' formed?
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609e4c75e941dd6183d99e45- 1Addition of electrontrue
- 2Removal of electronfalse
- 3Addition of protonfalse
- 4Removal of protonfalse
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Answer : 1. "Addition of electron "
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