Free Radical Halogenation

Q. The compound that will react most readily with gaseous bromine has the formula

1. $C_4{H}_{10}$
2. $C_3{H}_6$
3. $C_2{H}_4$
4. $C_2{H}_2$

Q. Chlorination of toluene in the presence of light and heat followed by treatment with aqueous sodium hydroxide gives

1. p-Cresol
2. 2, 4-Dihydroxytoluene
3. Benzoic acid
4. o-Cresol

Q. The molecular formula of diphenyl methane,

How many structural isomers are possible when one of the hydrogen is replaced by a chlorine atom?

1. $6$
2. $4$
3. $8$
4. $7$

Q.

Chlorination of isobutane mainly gives

1. Isobutyl chloride

2. tert-butyl chloride

3. Both a & b

4. None of the above

Q. Isopentane on monochlorination gives four isomeric monochloro derivatives of isopentane. Which product(s) has/have a yield less than 35% in the mixture?

1. 
2. 
3. 
4. 

Q.

When chlorine passed through propene at 400 degree Celsius, the product is:

1. Vinyl chloride

2. PVC

3. Allyl chloride

4. 1, 2-dichloroethane

Q. What is cine substitution and what is addition elimination reaction?

Q. In the following monobromination reaction, the number of possible chiral product(s) is/are:

Q. Which of following will react with $Na/liqN{H}_3$?

1. $C{H}_3-C\equiv C-C{H}_3$
2. $C{H}_3-C\equiv C-H$
3. Both (a) and (b)
4. None of the above

Q. Which of the following is least reactive towards hydrogenation?

1. $C{H}_3-C\equiv C-C{H}_3$
2. $C{H}_3-C\equiv CH$
3. $HC\equiv CH$
4. $H_{2}C=C{H}_2$

Q.

Why is Bromobenzene unreactive?

Q. Which is the most stable cycloalkane among cyclopropane, cyclobutane, cyclopentane and cyclohexane ? Why ?

Q. Which of the following compound(s) gives $S_{N}1\text{and}{S}_{N}2$ mechanisms?

1. 
2. 
3. 
4. 

Q. Chlorination of Toluene in the presence of sunlight gives :

1. Chlorobenzene
2. o and p-chloro toluene
3. Benzyl chloride
4. m-Chloro toluene

Q. In the following questions a statement of Assertion $\left(A\right)$ followed by a statement of Reason $\left(R\right)$ is given.

Choose the correct answer out of the following choice.

Assertion $\left(A\right)$: Aniline on reaction with $NaN{O}_2/HCl$ at $0°C$ followed by coupling with $\beta -\text{napthol}$ gives a intense red coloured precipitate.
Reason (R): The colour of the compound formed in the reaction of aniline with $NaN{O}_2/HCl$ at $0°C$ followed by coupling with $\beta -\text{napthol}$ is due to the extended conjugation.

1. Both Assertion and Reason are false
2. Assertion is true but Reason is false
3. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
4. Both Assertion and Reason are true and Reason is the correct explanation of Assertion

Q. How to convert benzene to 4 chlorotoluene

Q. Which of the following analogies is correct?
$\text{Isopropyl chloride}:2^o\text{alkyl halide}::\text{Isobutyl chloride}:$

1. $1^o\text{alkyl halide}$
2. $2^o\text{alkyl halide}$
3. $3^o\text{alkyl halide}$
4. None of these

Q. Which among the following is not having an asymmetric carbon atom?

1. 2-chlorobutane
2. 2-bromo-3-butene
3. 2-hydroxypropanal
4. Methane

Q. Williamson’s synthesis is used for the preparation of

1. Alkyl halides
2. Alcohols
3. Ethers
4. Aldehydes

Q. Why only ortho and para isomers can be easily separated by electrophilic substitution and not the meta isomers ?
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Q.

Find the mass of ${\mathrm{CO}}_2$ produced when $14\mathrm{Kg}$ of ethene (${\mathrm{C}}_2{\mathrm{H}}_4$) burnt in oxygen

Q.

On treatment with chlorine in presence of sunlight, benzene gives the product

1. Benzene hexachloride

2. 1, 2 - dichlorobenzene

3. p - dichlorobenzene

4. Benzyl chloride

Q. The product (A) and (B) are respectively

1. 
2. 
3. 
4. 

Q. Which isomer of hexane has only two different sets of structurally equivalent hydrogen atom

1. 2, 2-dimethylbutane
2. 2-methyl pentane
3. 3-methyl pentane
4. 2, 3-dimethyl butane

Q.

Alkanes, alkenes, alkynes, alcohol, phenol, ether, ester, aldehyde, ketone, acid pls arrange in the sequence of increasing oxidation number. ( If one compound were to be transformed into the other

Q. 40. Lowest boiling point is for 1) butanol 2) Pentagon 3) 2-methyl propane-2-ol 4) 2-methyl butane-2-ol

Q. Benzene reacts with acetyl chloride in the presence of $AlC{l}_3$ to give

1. acetophenone
2. toluene
3. benzophenone
4. ethyl benzene

Q. 2methyl butane on reaction with chlorine and bromine in presence of sunlight gives some products.write major product of both these reactions.

Q.
Which of the following statements are correct for the above reaction?

1. The product is a mixture of
2. One of the products will be cine substitution product
3. The reaction proceeds via benzyne intermediate
4. The reaction is electrophilic substitution reaction

Q. 1, 3-butadiene reacts with ethylene to form (a) benzene (b) cyclohexane (c) cyclohexene (d) 2, 3 dimethyl butane