Methoxy methane and ethanol are
position isomers
chain isomers
functional isomers
optical isomers
An organic compound X is oxidised by using acidified K2Cr2O7. The product obtained reacts with phenyl hydrazine but does not answer silver mirror test. The possible structure of X is
CH3CH2OH
CH3-CO-CH3
(CH3)2CHOH
CH3CHO
IUPAC name of (CH3)3CCl is
n-butyl chloride
3-chloro butane
2-chloro 2-methyl propane
t-butyl chloride
An organic compound on heating with CuO produces CO2 but no water. The organic compound may be
carbon tetrachloride
chloroform
methane
ethyl iodide
Chloroacetic acid is a stronger acid than acetic acid. This can be explained using
-M effect
- I effect
+M effect
+I effect
1.2 g of organic compound of Kjeldahlization liberates ammonia which consumes 30 cm3 of 1 N HCl. The percentage of nitrogen in the organic compound is
30
35
46.67
20.8
The yellow precipitate formed during the chromyl chloride test is chemically
chromic acid
lead chromate
lead acetate
sodium chromate
Which one of the nitrogen atoms in is the most nucleophilic?
III
I
II
All three nitrogen atoms are equally strong nucleophilic centres
B.
I
Electron present on nitrogen atom II and III takes part in conjugation with carbonyl group. Hence, due to this reason availability of electron present on these nitrogen atom decreases simultaneously nucleophilicity decreases. While electron present on nitrogen atom (I) do not take part in conjugation and are most nucleophilic in nature.
Which one of the following is the most energetic conformation of cyclohexane?
Boat
Twisted boat
Chair
Half-chair