Hydrocarbons

Propane molecule on chlorination under photochemical condition gives two di-chloro products, “x” and “y”. Amongst “x” and “y”, “x” is an optically active molecule. How many tri-chloro products (consider only structural isomers) will be obtained from “x” when it is further treated with chlorine under the photochemical condition?

1. 4
2. 2
3. 3
4. 5

Given below are two statements : In the light of the above statements, choose the most appropriate answer from the options given below :

1. Both Statement I and Statement II are incorrect
2. Statement I is incorrect but Statement II is correct
3. Both Statement I and Statement II are correct
4. Statement I is correct but Statement II is incorrect

When sec-butylcyclohexane reacts with bromine in the presence of sunlight, the major product is :

1. [figure]
2. [figure]
3. [figure]
4. [figure]

The incorrect statement regarding ethyne is

1. The carbon-carbon bond in ethyne is weaker than that in ethene
2. Both carbons are sp hybridised
3. The C-C bond in ethyne is shorter than that in ethene
4. Ethyne is linear

Given below are two statements : In the light of the above statements, choose the most appropriate answer from the options given below :

1. Both Statement I and Statement II are incorrect
2. Statement I is correct but Statement II is incorrect
3. Statement I is incorrect but Statement II is correct
4. Both Statement I and Statement II are correct

Consider the given chemical reaction : [figure] Product "A" is :

1. picric acid
2. oxalic acid
3. adipic acid
4. acetic acid

Which of the following compound will most easily be attacked by an electrophile?

1. [figure]
2. [figure]
3. [figure]
4. [figure]

In the given reactions identify A and B [figure] CH3-C C-CH3 + H2 Na/Liquid NH3 “B”

1. A : n-Pentane B : Cis - 2 - butene
2. A : 2-Pentyne B : Cis-2-butene
3. A : n-Pentane B : trans-2-butene
4. A : 2-Pentyne B : trans-2-butene

The set of meta directing functional groups from the following sets is :

1. -CN, -NH2, -NHR, -OCH3
2. -CN, -CHO, -NHCOCH3, -COOR
3. -NO2, -NH2, -COOH, -COOR
4. -NO2, -CHO, -SO3H, -COR

Major product of the following reaction is - [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

The correct order of reactivity in electrophilic substitution reaction of the following compounds is : [figure]

1. B > C > A > D
2. B > A > C > D
3. D > C > B > A
4. A > B > C > D

Compound A formed in the following reaction reacts with B to give the product C. Find out A and B. CH3-C CH + Na A B CH3- (C)C C-CH2- CH3 |CH2 + NaBr

1. A = CH3-C -C Na+, B = CH3-CH2-CH2-Br
2. A = CH3-CH=CH2, B = CH3-CH2-CH2-Br
3. A = CH3-C -C Na+, B = CH3-CH2-CH3
4. A = CH3-CH2-CH3, B = CH3-C CH

Identify product A and product B : [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

Which of the following reaction is correct?

1. C2H5CONH2 + Br2 + NaOH C2H5CH2NH2 + Na2CO3 + NaBr + H2O
2. [figure]
3. [figure]
4. CH3CH2CH2NH2 [H2O]HNO2, 0 C CH3CH2OH + N2 + HCl

The incorrect statement regarding conformations of ethane is :

1. The dihedral angle in staggered conformation is 60 .
2. Ethane has infinite number of conformations.
3. Eclipsed conformation is the most stable conformation.
4. The conformations of ethane are inter-convertible to one-another.