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3. Classification of elements and periodicity in properties — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry3. Classification of elements and periodicity in properties1 Mark
MCQ
Consider the following information about element $P$ and $Q$

  Period number Group number
$P$ $2$ $15$
$Q$ $3$ $2$

Then formula of the compound formed by $P$ and $Q$ element is

  • A
    $PQ$
  • B
    $P_3Q_2$
  • ✓
    $P_2Q_3$
  • D
    $PQ_2$
✓

Answer

Correct option: C.
$P_2Q_3$
c
$(c)\, P$ is trivalent non-metal $Q$ is divalent metal hence formula of compound is $P_2Q_3$.

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