In the reaction
What are A and B?
and
CH3CH2 OMg I and C2H5-O-C2H5
CH3CH2O Mg I and CH3-CH2-OH
CH3-CH2-I and CH3-CH2-OH
C.
CH3CH2O Mg I and CH3-CH2-OH
HCHO + CH3MgI
CH3CH2OMgI +H2O + Mg(OH) I
In the given reaction,
CH3-CH2-CH2-O-CH2-CH3 [X]+[Y]
[X]+[Y] are respectively.
CH3-CH2-CH2OH and CH3-CH2-Cl
CH3-CH2-CH2-Cl and CH2-CH2-OH
CH3-CH2-CH2-Cl and CH2=CH2
CH3-CH3=CH2 and CH2=CH2
Which of the following pair will give positive tollen's test?
Glucose, sucrose
Glucose, fructose
Hexanol, acetophenone
Fructose, sucrose
The alcohol that produces turbidity immediately with ZnCL2 + conc. HCl at room temperature:
1- hydroxybutane
2- hydroxybutane
2- hydroxy -2- methyl propane
1- hydroxy -2- methyl propane
Which of the following polymers is prepared by condensation polymerisation ?
Teflon
Styrene
Rubber
Nylon 6, 6
During reduction of carbonyl compounds by hydrazine and KOH, the first intermediate formed is:
RC≡N
RCONH2
RCH≡N
RCH=NH2
The sum of the number of primary alcoholic group present in open chain structure of glucose and fructose are:
4
5
3
2