Chemistry Practice Question and Answer
8 4 Q:
61275bc7dbe92e068b9111ff Answer : 3. "alkaline"
4 4 Q:
60ac7564d752621d4f9b8fdd 4 Q:
5ee0d1d3ca41b347ed350a6c 4 Q:
5f7465f1a921aa16e68bd6a5 4 Q:
6113d4d088e0566940a8176d 4 Q:
5fe1bfc8ce32c8585c73a73c 4 Q:
5f0ecca3dcdb5f61f5c4abe9
Q: The producers formed by the combustion of magnesium are -
1469 061275bc7dbe92e068b9111ff
61275bc7dbe92e068b9111ff- 1is acidicfalse
- 2is indifferentfalse
- 3alkalinetrue
- 4allfalse
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Answer : 3. "alkaline"
Explanation :
Therefore, the correct option is (C) Magnesium ribbon on burning in air produces: 'Magnesium oxide, heat and light'.
Q: The element common to all acids is 1469 05edeface2fce215c8ec3bc2f
5edeface2fce215c8ec3bc2f- 1oxygenfalse
- 2hydrogentrue
- 3carbonfalse
- 4sulphurfalse
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Answer : 2. "hydrogen"
Q: The stranger gas is also known as___________.
1460 060ac7564d752621d4f9b8fdd
60ac7564d752621d4f9b8fdd- 1Heliumfalse
- 2Argonfalse
- 3Xenontrue
- 4Neonfalse
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Answer : 3. "Xenon "
Q: In which of the following chlorine has + 1 oxidation number?
1447 05ee0d1d3ca41b347ed350a6c
5ee0d1d3ca41b347ed350a6c- 1Zinc chloridefalse
- 2Chlorinefalse
- 3Hypochlorous acidtrue
- 4Hydrochloric acidfalse
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Answer : 3. "Hypochlorous acid"
Q: Lightest metal is___
1440 05f7465f1a921aa16e68bd6a5
5f7465f1a921aa16e68bd6a5- 1Potassiumfalse
- 2Lithiumtrue
- 3Sodiumfalse
- 4Aluminumfalse
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Answer : 2. "Lithium"
Q: Methane an air pollutant is produced ___________
1435 06113d4d088e0566940a8176d
6113d4d088e0566940a8176d- 1by burning of coal in insufficient airfalse
- 2by digestion of food by animalstrue
- 3by action of ultraviolet light on nitrogenous compounds.false
- 4as a by-product of manufacturing ammoniacal fertilizersfalse
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Answer : 2. "by digestion of food by animals"
Q: Which of the following is not nucleon?
1433 05fe1bfc8ce32c8585c73a73c
5fe1bfc8ce32c8585c73a73c- 1Protonfalse
- 2Neutronfalse
- 3Both (A) and (B)false
- 4Positrontrue
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Answer : 4. "Positron "
Q: The atomic nucleus was discovered by
1425 05f0ecca3dcdb5f61f5c4abe9
5f0ecca3dcdb5f61f5c4abe9- 1Einsteinfalse
- 2Thompsonfalse
- 3Rutherfordtrue
- 4Daltonfalse
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