Chemistry GK Practice Question and Answer
8 Q: Oxides commonly occur in metals?
1814 05eeae05113d72d584fb2f5c3
5eeae05113d72d584fb2f5c3- 1acidicfalse
- 2Effortlessfalse
- 3Amphotericfalse
- 4Alkalinetrue
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Answer : 4. "Alkaline"
Q: Which law was studied in the year 1787, in which it was said that the volume of a gas increases with its absolute temperature and if its absolute temperature decreases, then its volume will decrease?
1812 064b5204188d5e4f52dd2277b
64b5204188d5e4f52dd2277b- 1Boyle’s lawfalse
- 2Dalton’s lawfalse
- 3Avogadro’s lawfalse
- 4Charles's lawtrue
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Answer : 4. "Charles's law"
Explanation :
1. Charles's law (also known as volume law) is an experimental gas law.
2. The volume of a gas increases with its absolute temperature and as its absolute temperature decreases its volume also decreases.
3. Charles's law was studied in the year 1787.
Q: Which metal does not react with oxygen even at higher temperatures?
1809 05feb081400e3f71b828c2fed
5feb081400e3f71b828c2fed- 1Ironfalse
- 2Goldtrue
- 3Potassiumfalse
- 4Aluminumfalse
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Answer : 2. "Gold"
Q: What substance is formed by the action of chlorine gas on dry quenched lime?
1804 05f697f28e124a354ae5c0c7f
5f697f28e124a354ae5c0c7f- 1calcium chloridefalse
- 2bleaching powdertrue
- 3Hydrochloric acidfalse
- 4Waterfalse
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Answer : 2. "bleaching powder"
Q: Which of the following metals burns with a golden flame?
1799 05eeadfdceee45c3b837a2c8f
5eeadfdceee45c3b837a2c8f- 1Znfalse
- 2Kfalse
- 3Mgfalse
- 4Natrue
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Answer : 4. "Na"
Q: Thin wires can be pulled from a metal piece. For which property of the metal is it responsible?
1788 05feb0909f33a00432aff0fc3
5feb0909f33a00432aff0fc3- 1Tensiletrue
- 2hardnessfalse
- 3Malignancyfalse
- 4conductivityfalse
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Answer : 1. "Tensile"
Q: Which of the following properties is not often present in organic compounds?
1783 06127662693f02206607f017f
6127662693f02206607f017f- 1soluble in watertrue
- 2low melting pointfalse
- 3flammabilityfalse
- 4allfalse
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Answer : 1. "soluble in water"
Q: Which of the following elements is NOT a component of baking soda?
1773 164bfc857a2d4dcaf044da339
64bfc857a2d4dcaf044da339- 1Hydrogenfalse
- 2Calciumfalse
- 3Sodiumfalse
- 4Oxygentrue
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Answer : 4. "Oxygen"
Explanation :
1. Which of the following calcium elements is not a component of baking soda?
2. The chemical formula of baking soda is NaHCO3, which is composed of four elements sodium, hydrogen, carbon and oxygen.
3. Baking soda is an alkaline substance used as a leavening agent in baking.