Chemistry GK Practice Question and Answer

Q:

The producers formed by the combustion of magnesium are -

960 0

  • 1
    is acidic
    Correct
    Wrong
  • 2
    is indifferent
    Correct
    Wrong
  • 3
    alkaline
    Correct
    Wrong
  • 4
    all
    Correct
    Wrong
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Answer : 3. "alkaline"
Explanation :

Therefore, the correct option is (C) Magnesium ribbon on burning in air produces: 'Magnesium oxide, heat and light'.

Q:

What type of acid is found in curd?

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  • 1
    lactic acid
    Correct
    Wrong
  • 2
    citric acid
    Correct
    Wrong
  • 3
    Oxalic acid
    Correct
    Wrong
  • 4
    Others
    Correct
    Wrong
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Answer : 1. "lactic acid"

Q:

What is an alloy of copper and tin called?

945 0

  • 1
    brass
    Correct
    Wrong
  • 2
    Duralumin
    Correct
    Wrong
  • 3
    Bronze
    Correct
    Wrong
  • 4
    Solder
    Correct
    Wrong
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Answer : 3. "Bronze"

Q:

What is the pH value of salts made from strong acids and weak bases?

927 0

  • 1
    more than 7
    Correct
    Wrong
  • 2
    less than 7
    Correct
    Wrong
  • 3
    Between 10 and 14
    Correct
    Wrong
  • 4
    less than 14
    Correct
    Wrong
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Answer : 2. "less than 7"

Q:

Which of the following is not oxidation?

919 0

  • 1
    precipitation
    Correct
    Wrong
  • 2
    Digestion of food
    Correct
    Wrong
  • 3
    Respiration
    Correct
    Wrong
  • 4
    combustion
    Correct
    Wrong
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Answer : 1. "precipitation"

Q:

Oxides commonly occur in metals?

914 0

  • 1
    acidic
    Correct
    Wrong
  • 2
    Effortless
    Correct
    Wrong
  • 3
    Amphoteric
    Correct
    Wrong
  • 4
    Alkaline
    Correct
    Wrong
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Answer : 4. "Alkaline"

Q:

There is abundant available metal in the crust?

907 0

  • 1
    SI
    Correct
    Wrong
  • 2
    FE
    Correct
    Wrong
  • 3
    AL
    Correct
    Wrong
  • 4
    CU
    Correct
    Wrong
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Answer : 3. "AL"

Q:

Ant stings occur in?

904 0

  • 1
    oxide acid
    Correct
    Wrong
  • 2
    Formic acid
    Correct
    Wrong
  • 3
    lactic acid
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 2. "Formic acid"

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