Chemistry Practice Question and Answer
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Q: The brand name Teflon represents which polymer?
1018 06389c0e39ebad6607b7f646d
6389c0e39ebad6607b7f646d- 1Polystyrenefalse
- 2Polypropylenefalse
- 3Polytetrafluoroethylenetrue
- 4Polyethylene terephthalatefalse
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Answer : 3. "Polytetrafluoroethylene"
Q: Which of the following is an oxidising agent ?
1014 06258f7b7f5fb9a2759f0c057
6258f7b7f5fb9a2759f0c057- 1KMnO4false
- 2K2 Cr2 07false
- 3HNO3false
- 4All of the abovetrue
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Answer : 4. "All of the above "
Q: In which of the following classifications are the elements arranged in the order of their increasing atomic number?
1012 060827cb45027727e2faa5d77
60827cb45027727e2faa5d77- 1The Modern Periodic Tabletrue
- 2Mendeleev's Periodic Table/false
- 3Newland's Law of Octavesfalse
- 4Dobereiner's Triadsfalse
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Answer : 1. "The Modern Periodic Table "
Q: Which of the following is a Lewis base?
1006 063c7b9de8731ac33279af243
63c7b9de8731ac33279af243- 1Ammoniatrue
- 2Magnesium chloridefalse
- 3Aluminum chloridefalse
- 4Sodium ionfalse
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Answer : 1. "Ammonia"
Q: Which of the following compound contains only Carbon and Hydrogen atoms in their formation?
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613ac986dffb173b7bd55970- 1Chloroformfalse
- 2Teflonfalse
- 3Ethanolfalse
- 4Benzenetrue
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Answer : 4. "Benzene"
Q: What is the full form of PVC?
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6389b74ec878936066e6f4c8- 1Phosphonyl vinyl Carbonatefalse
- 2Polyvinyl S Carbonatefalse
- 3Polyvinyl Carbonatefalse
- 4Polyvinyl Chloridetrue
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Answer : 4. "Polyvinyl Chloride"
Q: The common name of dichlorodifluoromethane is _____.
994 062cd637951fe3472d6b30512
62cd637951fe3472d6b30512- 1gypsumfalse
- 2boraxfalse
- 3galenafalse
- 4Freontrue
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Answer : 4. "Freon"
Q: Why do we boil the extract with conc. HNO3 in Lassaigne’s test for halogens?
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63c8f9528731ac33279f0648- 1To increase the concentration of NO3- ionsfalse
- 2To increase the solubility product of AgClfalse
- 3It increases the precipitation of AgClfalse
- 4For the decomposition of Na2S AND NaCN formedtrue
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Answer : 4. "For the decomposition of Na2S AND NaCN formed"
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