Chemistry Practice Question and Answer
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Q: There is abundant available metal in the crust?
1664 05eeb1454eee45c3b837b02d4
5eeb1454eee45c3b837b02d4- 1SIfalse
- 2FEfalse
- 3ALtrue
- 4CUfalse
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Answer : 3. "AL"
Q: Which gas accumulates at the anode after electromagnetic decomposition of alumina?
1662 05feb077f00e3f71b828c2c39
5feb077f00e3f71b828c2c39- 1Hydrogen gasfalse
- 2nitrogen gasfalse
- 3Carbon dioxide gasfalse
- 4oxygen gastrue
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Answer : 4. "oxygen gas"
Q: What type of reaction is respiration?
1661 05f69905d397b1a52908c873a
5f69905d397b1a52908c873a- 1exothermic reactiontrue
- 2combination reactionfalse
- 3oxidation-reduction reactionfalse
- 4two-decomposition reactionfalse
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Answer : 1. "exothermic reaction"
Q: What type of acid is found in curd?
1657 05f697af5558d255013b2469e
5f697af5558d255013b2469e- 1lactic acidtrue
- 2citric acidfalse
- 3Oxalic acidfalse
- 4Othersfalse
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Answer : 1. "lactic acid"
Q: If an alloy contains a metal mercury, what is it called?
1654 06127659a93f02206607ef8f6
6127659a93f02206607ef8f6- 1mercury alloyfalse
- 2Iron Alloyfalse
- 3Amalgamtrue
- 4Zinc Alloyfalse
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Answer : 3. "Amalgam"
Q: is silica?
1652 061276505b05363065a00aaf5
61276505b05363065a00aaf5- 1metalloidstrue
- 2metalfalse
- 3non-metalsfalse
- 4none of thesefalse
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Answer : 1. "metalloids"
Q: Water gas is the mixture of
1651 05ed8add854f88e519fa1b8c9
5ed8add854f88e519fa1b8c9- 1carbon dioxide and hydrogenfalse
- 2carbon monoxide and hydrogentrue
- 3carbon dioxide and nitrogenfalse
- 4carbon monoxide and nitrogen bearfalse
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Answer : 2. "carbon monoxide and hydrogen "
Q: Which is the first metal used by humans?
1642 05eeb13ffad25df5a63256bd3
5eeb13ffad25df5a63256bd3- 1Goldfalse
- 2Ironfalse
- 3Coppertrue
- 4Silverfalse
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Answer : 3. "Copper"
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