Chemistry GK Practice Question and Answer
8 4 Q:
5feb02fad6478d50160f01ec 4 Q:
5feb04c9f33a00432afef757 4 Q:
5feb056c00e3f71b828c2206 4 Q:
5feb034bf33a00432afeea62 4 Q:
61275bc7dbe92e068b9111ff Answer : 3. "alkaline"
4 Q:
61275cd493f02206607eb0af Answer : 2. "Mercury"
4 Q:
5f699109397b1a52908c9799 4 Q:
5feb0482f6205c4d625d17c4
Q: Zinc and lead, than copper?
5190 05feb02fad6478d50160f01ec
5feb02fad6478d50160f01ec- 1is less activefalse
- 2is more activetrue
- 3is equally functionalfalse
- 4Othersfalse
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- SingleChoice
Answer : 2. "is more active"
Q: Which of the following is a heterogeneous compound?
4785 05feb04c9f33a00432afef757
5feb04c9f33a00432afef757- 1Plaster of Paristrue
- 2Chalkfalse
- 3Marblefalse
- 4Limestonefalse
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Answer : 1. "Plaster of Paris"
Q: Approximate pH value of lemon juice?
1975 05feb056c00e3f71b828c2206
5feb056c00e3f71b828c2206- 110false
- 22.2true
- 312false
- 414false
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Answer : 2. "2.2"
Q: A fermentation of grapes?
1968 05feb034bf33a00432afeea62
5feb034bf33a00432afeea62- 1chemical change istrue
- 2physical changefalse
- 3Both chemical and physical changesfalse
- 4Othersfalse
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Answer : 1. "chemical change is"
Q: The producers formed by the combustion of magnesium are -
1939 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: Which of these metals is found in liquid state?
1920 061275cd493f02206607eb0af
61275cd493f02206607eb0af- 1Ironfalse
- 2Mercurytrue
- 3Silverfalse
- 4Othersfalse
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Answer : 2. "Mercury"
Explanation :
Mercury is the only metal that is liquid at normal temperatures.
Q: What is liberated when the base is dissolved in water?
1854 05f699109397b1a52908c9799
5f699109397b1a52908c9799- 1(OH) - iontrue
- 2H + ionfalse
- 3Both ionsfalse
- 4No ionfalse
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Answer : 1. "(OH) - ion"
Q: Which acid is found in vinegar?
1795 05feb0482f6205c4d625d17c4
5feb0482f6205c4d625d17c4- 1lactic acidfalse
- 2citric acidfalse
- 3Methanoic acidfalse
- 4Acetic acidtrue
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Answer : 4. "Acetic acid"
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