Chemistry GK Practice Question and Answer
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Q: Which of the following are strongly acidic?
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5f697e6a397b1a52908c0aac- 1pH = 7false
- 2pH = 14false
- 3pH = 0true
- 4pH = 3false
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Answer : 3. "pH = 0"
Q: Which of the following metals is available in wire form?
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61275da3302e8b067c99cde6- 1Calciumfalse
- 2Magnesiumfalse
- 3Coppertrue
- 4Leadfalse
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Answer : 3. "Copper"
Q: What are the substances that participate in a reaction?
1322 05f698fe6f9079a64e3a5b205
5f698fe6f9079a64e3a5b205- 1considerationfalse
- 2Deductivefalse
- 3reactantstrue
- 4Oxidizerfalse
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Answer : 3. "reactants"
Q: Which metal reacts with water?
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61275b3bb05363065a00517c- 1goldfalse
- 2Potassiumtrue
- 3Silverfalse
- 4Leadfalse
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Answer : 2. "Potassium"
Q: Which gas is deposited at the anode on electrolysis of alumina?
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61275989dbe92e068b90f6be- 1Hydrogen gasfalse
- 2Nitrogen gasfalse
- 3carbon dioxide gasfalse
- 4Oxygen gastrue
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Answer : 4. "Oxygen gas"
Q: What is an oxidation-reduction reaction called?
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5feb01ebf6205c4d625d0454- 1endothermic reactionfalse
- 2Redox reactiontrue
- 3precipitation reactionfalse
- 4exothermic reactionfalse
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Answer : 2. "Redox reaction"
Q: An acid must contain mainly one atom which reacts with the metal to produce a gas.
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5f697b4cf9079a64e3a5161a- 1Hydrogentrue
- 2oxygenfalse
- 3Nitrogenfalse
- 4Ammoniafalse
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Answer : 1. "Hydrogen"
Q: What is the percentage of carbon in steel?
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612759cdb05363065a00450e- 13 %false
- 24 %false
- 32 %true
- 45 %false
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Answer : 3. "2 %"
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