MDCAT Chemistry MCQ #51

A chemist reacts 0.5 moles of formaldehyde with excess ethylmagnesium bromide followed by hydrolysis. What mass of the resulting primary alcohol is produced?

MDCAT Chemistry MCQ #51

  1. Question 1

    Q1. A chemist reacts 0.5 moles of formaldehyde with excess ethylmagnesium bromide followed by hydrolysis. What mass of the resulting primary alcohol is produced?

    • A) 23 g
    • B) 30 g
    • C) 46 g
    • D) 60 g

    Answer: 30 g

    Explanation: Ethylmagnesium bromide reacts with formaldehyde to form 1-propanol (M.W 60). 0.5 moles yields 30g. 46g refers to ethanol mass.