CBSE
The correct decreasing order of pKa is
II > IV > I > III
IV > II > III > I
III > II > IV > I
IV > I > II > III
Methyl isocyanide on hydrolysis gives :
CH3NH2
HCOOH
CH3COOH
Both (a) and (b)
Cyclohexene on ozonolysis followed by reaction with zinc dust and water gives compound E. Compound Eon further treatment with aqueous KOH yields compound F. Compound F is
The product formed when hydroxylamine condenses with a carbonyl compound is called :
hydrazide
oxime
hydrazine
hydrazone
The reagent used in Clemmensen's reduction is :
conc H2SO4
Zn-Hg / conc HCl
aq KOH
alc KOH
Maximum decarboxylation occurs in
CH3COOH
C6H5COOH
C6H5CH2COOH
CH3COCH2COOH
d(+) lactic acid is obtained from :
fermentation of cane sugar
green vegetables
muscles
fermentation of milk sugar
The correct increasing order of reactivity for the following molecules towards electrophilic aromatic substitution is
I < IV < II < III
I < IV < II < IV
I < III < II < IV
I < III < IV < II
Two molecules of acetone in presence of dil. NaOH give the product :
4 - methyl - 2 - pentanone
4 - hydroxy - 2 - pentanal
3 - hydroxy isopropyl propanone
4 - hydroxy - 4 - methyl - 2 - pentanone
The corrcet decreasing order of pKb is
I > II > III > IV
III > IV > II > I
II > III > IV > I
IV > II > I > III