Acetone reacts with HCN to form a cyanohydrin. It is an example of________________?
(A) electronphilic addition
(B) electrophilic substitution
(C) nucleophilic addition
(D) nucleophilic substitution
Carbonates of lithium are not stable like that of sodium due to________________?
(A) Low electronegativity
(B) Low electropositivity
(C) Low charge density
(D) Not known yet
Li is different from its family members due to____________________?
(A) small size
(B) high charge density
(C) less electropositivity
(D) all of the above
A elements are named as alkali metals because_______________?
(A) Their oxides are basic
(B) Their oxide and hydroxides are water soluble
(C) Both A & B
(D) They are found in earth
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
Which of the following is a symmetrical ketone___________________?
(A) 3 – hexanone
(B) acetone
(C) butanone
(D) 2-pentanone
Which one exhibits aldol condensation____________________?
(A) HCHO
(B) C6H5CHO
(C) Cl3CCHO
(D) CH3COCH3