961. Oxidation of primary alcohol gives________________?
A. ketone
B. Aldehyde
C. Alkene then – COOH
D. Ester
962. Ncleophilic addition reactions are catalysed__________________?
A. Acid
B. Base
C. Both A and B
D. None
963. Acetal on acid hydrolysis generates__________________?
A. Alcohol
B. Ketone
C. Both A & B
D. None of the above
964. Tetrahydroborate ion is the source of_______________?
A. proton
B. H+
C. both A & amp; B
D. H-
965. Dry distillation of calcium acetate results in the formation of_________________?
A. formaldehyde
B. acetaldehyde
C. methane
D. acetone
966. Cannizaros reaction takes place through the transfer of ____________________ from complex anion?
A. hydrogen ion
B. hydride ion
C. oxide ion
D. methoxide ion
967. Iodoform test can be used to distinguish between_________________?
A. ethanol and methanol
B. acetaldehyde and methanal
C. acetone and diethyl ketone
D. all of the above
968. Which of the following will have the highest boiling point ?
A. methanol
B. ethanal
C. propanal
D. hexanone
969. The carbon atom of carbonyl group is__________________?
A. sp hybridized
B. sp2 hybridized
C. cp3 hybridized
D. dsp2 hybridized
970. Formalin is ___________ solution of formaldehyde in water?
A. 10%
B. 20%
C. 40%
D. 60%