Chemistry GK Practice Question and Answer
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Q: Gas is produced by the reaction of steam on iron?
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612765e4b05363065a00aedf- 1Hydrogen gastrue
- 2Oxygen gasfalse
- 3ammonia gasfalse
- 4Nitrogen gasfalse
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Answer : 1. "Hydrogen gas"
Q: Which of the following metals are kept immersed in kerosene?
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61275d24dbe92e068b911ce2- 1Sodiumtrue
- 2Magnesiumfalse
- 3Zincfalse
- 4allfalse
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Answer : 1. "Sodium"
Q: Which metal floats when put in water?
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61275a37302e8b067c99aa84- 1Calciumtrue
- 2Nickelfalse
- 3Magnesiumfalse
- 4Potassiumfalse
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Answer : 1. "Calcium"
Q: Which non-metal is liquid at room temperature?
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6127640793f02206607ee962- 1mercuryfalse
- 2aluminumfalse
- 3Brominetrue
- 4Copperfalse
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Answer : 3. "Bromine"
Q: Which metal does not react with oxygen even at high temperature?
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612759fb302e8b067c99a4be- 1Ironfalse
- 2goldtrue
- 3Potassiumfalse
- 4Aluminumfalse
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Answer : 2. "gold"
Q: Food is cooked in a metal utensil because it is the source of heat.
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61275af7302e8b067c99af50- 1is a good conductortrue
- 2is a semiconductorfalse
- 3is a bad conductorfalse
- 4is both a conductor and a good conductorfalse
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Answer : 1. "is a good conductor"
Q: The alloy of lead and tin is called?
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61276441dbe92e068b9154b4- 1Steelfalse
- 2metalloidsfalse
- 3Gun Matonfalse
- 4soldertrue
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Answer : 4. "solder"
Q: Sodium chloride and water are formed by the reaction of sodium hydroxide and hydrochloric acid. What is this reaction?
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5f698f9a558d255013b2b659- 1neutralizationtrue
- 2Disintegrationfalse
- 3combinationfalse
- 4precipitationfalse
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Answer : 1. "neutralization"
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