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IGCSE A Level Chemistry Practice Test 349

Atoms and Molecules Mass Quiz Questions and Answers PDF - 349

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Atoms and Molecules Mass Questions and Answers PDF Download: Quiz 349

MCQ 1741:

The sum of protons (p+) and neutrons (n0) in an atom is called its

  1. atomic number
  2. nucleon number
  3. Avogadro's number
  4. protonic identity
MCQ 1742:

In concentration of gases, the molecules are further apart due to the decrease in

  1. volume
  2. pressure
  3. density
  4. inert
MCQ 1743:

Solids are mostly denser than

  1. liquids
  2. gases
  3. noble gases
  4. alkalis
MCQ 1744:

Metal that reacts vigorously with cold water to produce a strongly alkaline solution is

  1. Na(s)
  2. Mg(s)
  3. Al(s)
  4. S(s)
MCQ 1745:

The decrease in the force of attraction is due to the increase in the

  1. distance only
  2. shielding effect only
  3. number of electrons
  4. distance and shielding effect

IGCSE A Level Chemistry Exam Prep Tests

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