MDCAT Chemistry MCQ #293

A sample of 44g of ethanal is oxidized using K2Cr2O7 and H2SO4. How many moles of nascent oxygen [O] are consumed?

MDCAT Chemistry MCQ #293

  1. Question 1

    Q1. A sample of 44g of ethanal is oxidized using K2Cr2O7 and H2SO4. How many moles of nascent oxygen [O] are consumed?

    • A) 1 mole
    • B) 2 moles
    • C) 3 moles
    • D) 0.5 moles

    Answer: 1 mole

    Explanation: Oxidation of 1 mole of ethanal to ethanoic acid requires 1 mole of nascent oxygen [H]. 2 moles is for primary alcohols.