Chemistry Practice Question and Answer

Q:

Which of the following is a Lewis base?

507 0

  • 1
    Ammonia
    Correct
    Wrong
  • 2
    Magnesium chloride
    Correct
    Wrong
  • 3
    Aluminum chloride
    Correct
    Wrong
  • 4
    Sodium ion
    Correct
    Wrong
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Answer : 1. "Ammonia"

Q:

Which of the following substances cannot act as both acid as well as a base?

509 0

  • 1
    Amphoteric substance
    Correct
    Wrong
  • 2
    Amphiprotic substance
    Correct
    Wrong
  • 3
    Ampholyte
    Correct
    Wrong
  • 4
    Photophilic
    Correct
    Wrong
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Answer : 4. "Photophilic"

Q:

A strong acid has a ______________

568 0

  • 1
    Weak conjugate acid
    Correct
    Wrong
  • 2
    Weak conjugate base
    Correct
    Wrong
  • 3
    Strong conjugate base
    Correct
    Wrong
  • 4
    Strong conjugate acid
    Correct
    Wrong
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Answer : 2. "Weak conjugate base"

Q:

A proton donor is a ____________ substance.

437 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:

HCl is an Arrhenius ___________

425 0

  • 1
    Acid
    Correct
    Wrong
  • 2
    Base
    Correct
    Wrong
  • 3
    Salt
    Correct
    Wrong
  • 4
    Water
    Correct
    Wrong
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Answer : 1. "Acid"

Q:

Which of the following is not a lewis acid?

418 0

  • 1
    aluminum chloride
    Correct
    Wrong
  • 2
    sodium ion
    Correct
    Wrong
  • 3
    Sulphur tetrafluoride
    Correct
    Wrong
  • 4
    hydroxide ion
    Correct
    Wrong
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Answer : 4. "hydroxide ion"

Q:

Read the following questions carefully and answer them. 

The isotope of Uranium used in atomic reactors is

523 0

  • 1
    $$U^235$$
    Correct
    Wrong
  • 2
    $$U^236$$
    Correct
    Wrong
  • 3
    $$U^237$$
    Correct
    Wrong
  • 4
    $$U^232$$
    Correct
    Wrong
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Answer : 1. "$$U^235$$ "

Q:

Read the following questions carefully and answer them. 

The polymer used in making plastic crockery is 

503 0

  • 1
    Decron
    Correct
    Wrong
  • 2
    Nylon
    Correct
    Wrong
  • 3
    Bakelite
    Correct
    Wrong
  • 4
    Melamine
    Correct
    Wrong
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Answer : 4. "Melamine"

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