Chemistry Practice Question and Answer
8 4 Q:
62ac7aa2184ea83a6380a6d9 4 Q:
63c7abc48731ac33279ac0bd 4 Q:
63c7aabfb338bc336f08c023 4 Q:
62f10b533342ab11842d1eb2 4 Q:
63c7c0321e8e3f3e1a35f224 4 Q:
63c7b87a7efeed32fc1cb907 4 Q:
6389b84734f83f147273cfcb 4 Q:
64242bd8dcb650c14569c06c
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.
989 062ac7aa2184ea83a6380a6d9
62ac7aa2184ea83a6380a6d9- 13 onlytrue
- 21, 2 and 3false
- 31 and 2 onlyfalse
- 4Nonefalse
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Answer : 1. "3 only "
Q: A proton donor is a ____________ substance.
986 063c7abc48731ac33279ac0bd
63c7abc48731ac33279ac0bd- 1Proton genictrue
- 2Photophilicfalse
- 3Amphotericfalse
- 4Amphiproticfalse
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Answer : 1. "Proton genic"
Q: HCl is an Arrhenius ___________
969 063c7aabfb338bc336f08c023
63c7aabfb338bc336f08c023- 1Acidtrue
- 2Basefalse
- 3Saltfalse
- 4Waterfalse
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- SingleChoice
Answer : 1. "Acid"
Q: Which of the given metals cannot be extracted using smelting?
960 062f10b533342ab11842d1eb2
62f10b533342ab11842d1eb2- 1Fefalse
- 2Altrue
- 3Znfalse
- 4Pbfalse
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Answer : 2. "Al "
Q: Identify a conjugate pair in the equation:
NH3 + H2O ⇌ NH4+ + OH–.
957 063c7c0321e8e3f3e1a35f224
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: Which of the following substances cannot act as both acid as well as a base?
938 063c7b87a7efeed32fc1cb907
63c7b87a7efeed32fc1cb907- 1Amphoteric substancefalse
- 2Amphiprotic substancefalse
- 3Ampholytefalse
- 4Photophilictrue
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Answer : 4. "Photophilic"
Q: Which fibre is used for making bristles of brushes.
929 06389b84734f83f147273cfcb
6389b84734f83f147273cfcb- 1Kevlarfalse
- 2Nylon-66true
- 3Terylenefalse
- 4Lexanfalse
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Answer : 2. "Nylon-66"
Q: Which of the following is considered to be the fifth state of matter?
928 064242bd8dcb650c14569c06c
64242bd8dcb650c14569c06c- 1Bose-Einstein condensatetrue
- 2Plasmafalse
- 3Solidfalse
- 4Gasfalse
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Answer : 1. "Bose-Einstein condensate "
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