MCQ
Few statements are given below. Identify the incorrect statements and mark the appropriate option.
$i.$ In fractional distillation of petroleum, hydrocarbon with lowest boiling point condenses first.
$ii.$ Useful substances obtained from petroleum and natural gas are termed as 'Petrochemicals'.
$iii.$ Coke is used in the extraction of many metals.
$iv.$ Paraffin wax used in candles, vaseline, grease, polish is obtained by destructive distillation of coal.
  • A
    $i$ and $ii$
  • $i$ and $iv$
  • C
    $i, ii$ and $iii$
  • D
    $ii$ and $iv$

Answer

Correct option: B.
$i$ and $iv$
In fractional distillation of petroleum, hydrocarbon with highest boiling point condenses first. Paraffin wax is obtained by fractional distillation of crude oil or petroleum.

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