A metal 'M' reacts with N2 to give a compound 'A' (M3N). 'A' on heating at high temperature gives back 'M' and 'A' on reacting with H2O give a gas B. 'B' turns CuSO4 solution blue on passing through it. M and B can be
Al and NH3
Li and NH3
Na and NH3
Mg and NH3
Electromeric effect is
permanent effect
temporary effect
resonance effect
inductive effect
B.
temporary effect
Electromeric effect occurs only in the presence of attacking reagent. It operates in the molecules having multiple bond. Since, it exists only on the demand of attacking reagent, it is a temporary effect. eg,
If the attacking reagent is electrophile, the effect is called +E and if the attacking reagent is a
nucleophile, the effect is called -E effect.
CH3CH2CH(OH)CH3 and CH3(CH2)2CH2OH can be distinguished by
Lucas test
Iodoform test
Victor-Meyer's test
All of the above
The compound which does not exhibit geometrical isomerism, is
CH3CH=CHCOOH
Br-CH=CH-Br
C6H5CH=NOH
Which of the following is the most reactlve towards ring nitration ?
benzene
toulene
m-xylene
mesitylene
Racemic compound has
equimolar mixture of enantiomers
1 : 1 mixture of enantiomer and diastereomer
1 : 1 mixture of diastereomers
1 : 2 mixture of enantiomers
In which of the following ways does the hydride ion tend to function ?
An electrophile
A nucleophile
A free radical
An acid