Chemistry Practice Question and Answer

Q:

Gastric juice contains acids?

1406 0

  • 1
    Acetic acid
    Correct
    Wrong
  • 2
    Sulfuric acid
    Correct
    Wrong
  • 3
    Hydrochloric acid
    Correct
    Wrong
  • 4
    Nitric acid
    Correct
    Wrong
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Answer : 3. "Hydrochloric acid"

Q:

Is zinc ore?

1404 0

  • 1
    zinc blade
    Correct
    Wrong
  • 2
    Bauxite
    Correct
    Wrong
  • 3
    sodium chloride
    Correct
    Wrong
  • 4
    Sinawar
    Correct
    Wrong
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Answer : 1. "zinc blade"

Q:

Potassium nitrate is used in

1402 0

  • 1
    medicine
    Correct
    Wrong
  • 2
    salt
    Correct
    Wrong
  • 3
    glass
    Correct
    Wrong
  • 4
    fertiliser
    Correct
    Wrong
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Answer : 4. "fertiliser"

Q:

Which metal starts floating when put in water?

1399 0

  • 1
    calcium
    Correct
    Wrong
  • 2
    Nickel
    Correct
    Wrong
  • 3
    Magnesium
    Correct
    Wrong
  • 4
    Potassium
    Correct
    Wrong
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Answer : 1. "calcium"

Q:

What is the acid found in bees?

1394 0

  • 1
    Formic acid
    Correct
    Wrong
  • 2
    Acetic acid
    Correct
    Wrong
  • 3
    Carbolic acid
    Correct
    Wrong
  • 4
    Oxalic acid
    Correct
    Wrong
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Answer : 1. "Formic acid"

Q:

Gold is alloyed with which metal to make it harder?

1393 0

  • 1
    C
    Correct
    Wrong
  • 2
    Sn
    Correct
    Wrong
  • 3
    Cu
    Correct
    Wrong
  • 4
    Ag
    Correct
    Wrong
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Answer : 3. "Cu"

Q:

The percentage of nitrogen present in ammonium sulphate is: 

1383 0

  • 1
    $$ 30.5 \% $$
    Correct
    Wrong
  • 2
    $$ 18 \% $$
    Correct
    Wrong
  • 3
    $$ 21 \% $$
    Correct
    Wrong
  • 4
    $$ 25\% $$
    Correct
    Wrong
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Answer : 3. "$$ 21 \% $$"

Q:

What is an alloy of copper and tin called?

1375 0

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

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