Formaldehyde condenses with phenol in the presence of dilute H2SO4 to yield________________?

Related Mcqs:

Oxidation of primary alcohol gives________________?

A. ketone B. Aldehyde C. Alkene then – COOH D. Ester...

Ncleophilic addition reactions are catalysed__________________?

A. Acid B. Base C. Both A and B D. None...

Acetal on acid hydrolysis generates__________________?

A. Alcohol B. Ketone C. Both A & B D. None of the above...

Formalin consists of mixture of formaldehyde methyl alcohol and water Percentage of water in it is________________?

A. 60% B. 50% C. 52% D. 8%...

On heating aldehydes with Fehlings solution we get a precipitate whose colour is_________________?

A. pink B. black C. yellow D. brick red...