Chemistry Practice Question and Answer
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63aaa987afa10611461dd172 4 Q:
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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: Identify a conjugate pair in the equation:
NH3 + H2O ⇌ NH4+ + OH–.
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63c7c0321e8e3f3e1a35f224NH3 + H2O ⇌ NH4+ + OH–.
- 1Ammonia and waterfalse
- 2Water and hydroxide iontrue
- 3Ammonium ion and hydroxide ion.false
- 4Ammonia and hydroxide ionfalse
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Answer : 2. "Water and hydroxide ion"
Q: Plastic bottles are made of a polymer called PET. The expanded form of PET is
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6389c01134f83f1472741741- 1Polyethylene terephthalatetrue
- 2Polyethyl Terelenefalse
- 3Polyethylene triphosphatefalse
- 4Polyethyl tetrachloridefalse
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Answer : 1. "Polyethylene terephthalate"
Q:Read the following questions carefully and answer them.
Curd is sour due to presence of
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63aaa987afa10611461dd172- 1Tartaric acidfalse
- 2Lactic acidtrue
- 3Acetic acidfalse
- 4Oxalic acidfalse
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Answer : 2. " Lactic acid "
Q: Which of the following is/are the example/examples of chemical change?
(1) . Crystallization of sodium chloride
(2) . Melting of ice
(3) . Souring of milk
Select the correct answer using the code given below.
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62ac7aa2184ea83a6380a6d9- 13 onlytrue
- 21, 2 and 3false
- 31 and 2 onlyfalse
- 4Nonefalse
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Answer : 1. "3 only "
Q:Read the following questions carefully and answer them.
“All the four quantum numbers of two electrons in an atom are not the same.” It is the law of —
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63aaa6fc5770eb565d4ff628- 1Hund’sfalse
- 2Exclusion Principle of Paulitrue
- 3Uncertainty Principle of Heisenbergfalse
- 4Avogadro’s Lawfalse
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Answer : 2. " Exclusion Principle of Pauli "
Q: Which of the following substances cannot act as both acid as well as a base?
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63c7b87a7efeed32fc1cb907- 1Amphoteric substancefalse
- 2Amphiprotic substancefalse
- 3Ampholytefalse
- 4Photophilictrue
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Answer : 4. "Photophilic"
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"
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