Formaldehyde undergoes Cannizzaro reaction because
(A) It has alpha-hydrogen atom.
(B) It does not have alpha-hydrogen atom.
(C) It does not undergo self-oxidation and reduction on heating with concentrated alkali.
(D) It undergo self-oxidation and reduction on heating with concentrated alkali.
Choose the correct answer from the options given below:

Correct option is A

Formaldehyde has no presence of α -hydrogen, and thus it undergoes Cannizzaro reaction. The products formed due to this reaction are Sodium formate and Methanol.
Formaldehyde HCHO when reacted with concentrated alkali solution undergoes self oxidation-reduction reaction. Therefore, According to Cannizzaro's reaction, when HCHO is reacted with concentrated NaOH solution it gives methyl alcohol and sodium formate.