What type of product is obtained when formaldehyde reacts with $\mathrm{CH}_3 \mathrm{MgBr}$ in dry ether?

What type of product is obtained when formaldehyde reacts with $\mathrm{CH}_3 \mathrm{MgBr}$ in dry ether?
  1. Primary alcohol with same number of carbon atoms as in aldehyde.
  2. Primary alcohol with one carbon atom more than aldehyde.
  3. Secondary alcohol with one carbon atom more than aldehyde.
  4. Tertiary alcohol with two carbon atoms more than aldehyde.

Asked in: MHT CET 2024 (03 May Shift 2)

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