Chemistry General Knowledge Questions Practice Question and Answer
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Q: The brand name Teflon represents which polymer?
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6389c0e39ebad6607b7f646d- 1Polystyrenefalse
- 2Polypropylenefalse
- 3Polytetrafluoroethylenetrue
- 4Polyethylene terephthalatefalse
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Answer : 3. "Polytetrafluoroethylene"
Q: In which of the following classifications are the elements arranged in the order of their increasing atomic number?
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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: Solutions having the same osmotic pressure at a given temperature are called_____.
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5fe9aa2500e3f71b8285e78f- 1hypertonic solutionfalse
- 2hypotonic solutionfalse
- 3colloidal solutionfalse
- 4Isotonic solutiontrue
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Answer : 4. "Isotonic solution"
Q: The common name of dichlorodifluoromethane is _____.
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62cd637951fe3472d6b30512- 1gypsumfalse
- 2boraxfalse
- 3galenafalse
- 4Freontrue
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Answer : 4. "Freon"
Q: A proton donor is a ____________ substance.
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63c7abc48731ac33279ac0bd- 1Proton genictrue
- 2Photophilicfalse
- 3Amphotericfalse
- 4Amphiproticfalse
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Answer : 1. "Proton genic"
Q: Which of the following is an oxidising agent ?
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6258f7b7f5fb9a2759f0c057- 1KMnO4false
- 2K2 Cr2 07false
- 3HNO3false
- 4All of the abovetrue
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Answer : 4. "All of the above "
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"
Q: .______ is least reactive element belonging to group 17.
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608290e438ab470ae93bd340- 1Brominefalse
- 2Iodinetrue
- 3Chlorinefalse
- 4Fluorinefalse
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Answer : 2. "Iodine "
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