Chemistry General Knowledge Questions Practice Question and Answer

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. 

478 0

  • 1
    3 only
    Correct
    Wrong
  • 2
    1, 2 and 3
    Correct
    Wrong
  • 3
    1 and 2 only
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
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Answer : 1. "3 only "

Q:

What is the bond between two amino acids in a protein called?

478 0

  • 1
    Ester bond
    Correct
    Wrong
  • 2
    Glycosidic bond
    Correct
    Wrong
  • 3
    Peptide bond
    Correct
    Wrong
  • 4
    Phosphodiester bond
    Correct
    Wrong
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Answer : 3. "Peptide bond"

Q:

Read the following questions carefully and answer them. 

Curd is sour due to presence of

466 0

  • 1
    Tartaric acid
    Correct
    Wrong
  • 2
    Lactic acid
    Correct
    Wrong
  • 3
    Acetic acid
    Correct
    Wrong
  • 4
    Oxalic acid
    Correct
    Wrong
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Answer : 2. " Lactic acid "

Q:

What is the full form of PVC?

459 0

  • 1
    Phosphonyl vinyl Carbonate
    Correct
    Wrong
  • 2
    Polyvinyl S Carbonate
    Correct
    Wrong
  • 3
    Polyvinyl Carbonate
    Correct
    Wrong
  • 4
    Polyvinyl Chloride
    Correct
    Wrong
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Answer : 4. "Polyvinyl Chloride"

Q:

Read the following questions carefully and answer them. 

Polythene is polymer of

455 0

  • 1
    Ethylene
    Correct
    Wrong
  • 2
    Propylene
    Correct
    Wrong
  • 3
    Acetylene
    Correct
    Wrong
  • 4
    Aniline
    Correct
    Wrong
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Answer : 1. "Ethylene "

Q:

Which is widely used in the plastic industry for manufacturing Bakelite?

442 0

  • 1
    Ethyl Alcohol
    Correct
    Wrong
  • 2
    Phenol
    Correct
    Wrong
  • 3
    Ortho-Cresol
    Correct
    Wrong
  • 4
    Catechol
    Correct
    Wrong
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Answer : 2. "Phenol"

Q:

A proton donor is a ____________ substance.

434 0

  • 1
    Proton genic
    Correct
    Wrong
  • 2
    Photophilic
    Correct
    Wrong
  • 3
    Amphoteric
    Correct
    Wrong
  • 4
    Amphiprotic
    Correct
    Wrong
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Answer : 1. "Proton genic"

Q:

Identify a conjugate pair in the equation:
NH3 + H2O ⇌ NH4+ + OH–.

432 0

  • 1
    Ammonia and water
    Correct
    Wrong
  • 2
    Water and hydroxide ion
    Correct
    Wrong
  • 3
    Ammonium ion and hydroxide ion.
    Correct
    Wrong
  • 4
    Ammonia and hydroxide ion
    Correct
    Wrong
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Answer : 2. "Water and hydroxide ion"

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