Chemistry GK Practice Question and Answer
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Q: Used in removing permanent hardness of water?
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5eeb131bad25df5a632567d5- 1running sodatrue
- 2bleaching powderfalse
- 3Caustic sodafalse
- 4Baking Sodafalse
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Answer : 1. "running soda"
Q: Which of the following metals can be cut with a knife?
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5feb06f200e3f71b828c287a- 1Magnesiumfalse
- 2Sulfurfalse
- 3Sodiumtrue
- 4Chromiumfalse
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Answer : 3. "Sodium"
Q: Which metal starts floating when put in water?
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5feb08b7f6205c4d625d2e66- 1calciumtrue
- 2Nickelfalse
- 3Magnesiumfalse
- 4Potassiumfalse
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Answer : 1. "calcium"
Q: Is zinc ore?
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5feb073bd6478d50160f1f48- 1zinc bladetrue
- 2Bauxitefalse
- 3sodium chloridefalse
- 4Sinawarfalse
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Answer : 1. "zinc blade"
Q: What substance is formed by the action of chlorine gas on dry quenched lime?
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5f697f28e124a354ae5c0c7f- 1calcium chloridefalse
- 2bleaching powdertrue
- 3Hydrochloric acidfalse
- 4Waterfalse
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Answer : 2. "bleaching powder"
Q: What is the increase in the ratio of oxygen in a chemical reaction?
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5f698eec397b1a52908c7d50- 1Reduction reactionfalse
- 2oxidation reactiontrue
- 3endothermic reactionfalse
- 4displacement reactionfalse
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Answer : 2. "oxidation reaction"
Q: What is the pH value of sodium hydroxide?
870 05f697aa5397b1a52908bfe4f
5f697aa5397b1a52908bfe4f- 111false
- 212false
- 313false
- 414true
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Answer : 4. "14"
Q: What type of indicator is turmeric, litmus paper etc.?
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5f697f86397b1a52908c1013- 1synthesizedfalse
- 2Naturaltrue
- 3Natural and synthesizedfalse
- 4Othersfalse
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Answer : 2. "Natural"
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