Chemistry Practice Question and Answer
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Q: Water gas is the mixture of
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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: If the pH value of a substance is lower than 7, it would be considered as–
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5ee85e95109b5d6e015e3b7b- 1Neutralfalse
- 2Basefalse
- 3Acidtrue
- 4Ionfalse
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Answer : 3. "Acid"
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"
Q: Which energy is converted into electrical energy by a solar cell?
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60fe429981fb4616a6566734- 1Chemical Energyfalse
- 2Nuclear energyfalse
- 3Solar energytrue
- 4Magnetic energyfalse
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Answer : 3. "Solar energy"
Q: Which of the following metals does not react with cold or hot water?
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5eeae018ad25df5a63247ecc- 1Nafalse
- 2Cafalse
- 3Mgfalse
- 4Fetrue
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Answer : 4. "Fe"
Q: The atomic nucleus was discovered by
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5f0ecca3dcdb5f61f5c4abe9- 1Einsteinfalse
- 2Thompsonfalse
- 3Rutherfordtrue
- 4Daltonfalse
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Answer : 3. "Rutherford "
Q: Which metal does not react with oxygen even at higher temperatures?
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5feb081400e3f71b828c2fed- 1Ironfalse
- 2Goldtrue
- 3Potassiumfalse
- 4Aluminumfalse
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Answer : 2. "Gold"
Q: Which gas accumulates at the anode after electromagnetic decomposition of alumina?
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5feb077f00e3f71b828c2c39- 1Hydrogen gasfalse
- 2nitrogen gasfalse
- 3Carbon dioxide gasfalse
- 4oxygen gastrue
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Answer : 4. "oxygen gas"
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