What will be the product if 1,1-halonitroalkane undergoes nucleophilic aliphatic substitution reaction in presence of ethanol?

What will be the product if 1,1-halonitroalkane undergoes nucleophilic aliphatic substitution reaction in presence of potassiam hydroxide?

A

1,1-dinitro dimer

B

1,2-dinitro dimer

C

1.-nitro compound

D

2-nitrocompound

In an accident a container containing ethanol(s.g 0.789) falls down in a room of dimension 1*1*2(all in m). Ethanol forms a layer of 2mm. Ethanol vaporizes and diffuses through a stagnant film of air of thickness 2.5mm. What will be the time required for the water layer to disappear completely. The diffusivity of ethanol in air is 2.567*10-5 m2/s. the total pressure is 1.013 bar and the pressure of ethanol in bulk air is 0.02244 bar and at the ethanol-air interface is 0.02718bar. The temperature is 25.2°C.

A

4.73h

B

14.6h

C

5.87h

D

16.2h

Which of the following statements is/are true for X?
i. X is not isoelectronic with benzene.
ii. X undergoes addition reaction with HCI.
iii. Electrophilic substitution reaction on X is much faster than that of benzene.
iv. X undergoes polymerization at 90°C

A

i and ii

B

ii only

C

ii and iii

D

i and iv

Pyridine undergoes nucleophilic substitution with NaNH2 at 100℃ to give which of the following?

A

3-aminopyridine

B

2-aminopyridine

C

3,5-diaminopyridine

D

2,5-diaminopyridine

Pyridine undergoes nucleophilic substitution with excess of NaNH2 at 100℃ to give which of the following?

A

3-aminopyridine

B

2,6-diaminopyridine

C

3,5-diaminopyridine

D

2,5-diaminopyridine

Pyridine undergoes nucleophilic substitution with phenyl lithium at 100℃ to give which of the following?

A

3-phenylpyridine

B

2-phenylpyridine

C

3,5-diphenylpyridine

D

2,5-diaphenylpyridine

For the reaction, A = X + Y, the respective concentrations are C_A, C_X and C_Y. The forward reaction rate constant is kf and the backward reaction rate constant is kb. Choose the correct statement from the following:
P. At equilibrium, kf C_A > k_B CxCy
Q. If the reaction is irreversible than, kb C_XC_Y = 0
R. The backward reaction rate will essentially be first order, if the forward reaction rate is first order.
S. Activation energy for the first order forward reaction will be independent of temperature.

A

P, Q

B

Q, R

C

R, S

D

Q, S

In the reaction,
Basics of Organic Reaction Mechanism mcq question image

the major product X is

A

B

C

D

The major product of the following reaction is
Basics of Organic Reaction Mechanism mcq question image

A

B

C

D

Bob just filled his car's gas tank with 20 galions of gasohol , a mixture consisting of 5% ethanol and 95% gasoline. If his car runs best on a mixture consisting of 10% ethanol and 90% gasoline, how many gallons of ethanol must he add into the gas tank for his car to achieve optimum performance?

A

20/19

B

10/9

C

9/10

D

1

What will be the product if 1,1-halonitroalkane undergoes nucleophilic aliphatic substitution reaction in presence of ethanol?

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