Formaldehyde and lactose are combined to produce throat lozenges named as__________________?
A. formamint B. lactomint C. aldomint D. formalactose
Chemistry MCQs
Formula of haloform is_________________?
A. HCOX B. CX4 C. CHX3 D. CH3X
On heating aldehydes with Fehlings solution we get a precipitate whose colour is_________________?
A. pink B. black C. yellow D. brick red
Aldehyde and ketone have same general formula for homologous series_________________?
A. CnH2nO2n B. CnH2n C. CnH2nO D. CnH2nOn+1
Ethanal is prepared industrially by air oxidation of ethylene using palladium chloride as catalyst and _________ as promoter?
A. PdCl2 B. Cu2Cl2 C. CuCl2 D. PbCl2
Acetaldehyele cyanohydrin on acid hydrolysis yields___________________?
A. Tartaric acid B. Propanoic acid C. Lactic acid D. Valeric acid
Which one exhibits aldol condensation____________________?
A. HCHO B. C6H5CHO C. Cl3CCHO D. CH3COCH3
Which of the following is a symmetrical ketone___________________?
A. 3 – hexanone B. acetone C. butanone D. 2-pentanone
In base catalyzed reaction of carbonyl compound the catalyst___________________?
A. increases the nucleophilic character of reagent B. increases electrophilic character of carbonyl compound C. acidic character of reagent D. both a and b