Class 12th

The major product of the following reaction is:
(3-methylpentan-2-ol reacts with conc. H?SO? and Heat)

Match the following drugs with their therapeutic action:
(I) Cimetidine structure
(II) Iproniazid structure
(III) Penicillin structure (general)
(IV) Terfenadine structure

(a) Antidepressant
(b) Antibiotic
(c) Antihistamine
(d) Antacid
(e) Analgesic

Three isomers A, B and C (mol. formula C?H?O?) gives the following results:
B or C →Decarboxylation→ D(C?H?)
A →Decarboxylation→ E(an isomer of D)
Both D and E are non-resolvable.
D or E →H?/KMnO?→ Benzoic acid
B is more reactive than C towards decarboxylation reaction.
A, B, C respectively are:

The d-electron configuration of [Fe(H?O)?(NO)]²? and K?[Cr(CN)?] respectively are:

Complex A has a composition of H?O?Cl?Cr. It has green colour. A 0.2M solution of complex when treated with excess of AgNO? gave 57.45gm of white precipitate. The formula of the complex would be: [Given: at mass Cr = 52amu, Cl = 35.5amu, Ag = 107.8amu ]

For the reaction A + 2B → 3C + D, which of the following expression represents the rate of formation of C, in terms of rate of decomposition of A :

Arrange the following in increasing order of reactivity towards AgNO? solution:

(I) 1-chloro-2-phenylethane
(II) (Dichloromethyl)cyclopropane
(III) 1-chloro-1-cyclohexylethane
(IV) (1-chloroethyl)benzene

The incorrect statement is:

CMC is the particular concentration above which micelle formation takes place. CMC for soap lies between:

The increasing order of the reactivity of the following compounds in nucleophilic addition reaction is:
(a) Di-tert-butyl ketone
(b) Acetone
(c) Acetaldehyde
(d) p-Nitrobenzaldehyde