Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Chemistry Volume 1 and 2 Answers Guide chapter 14 - Haloalkanes and Haloarenes [Latest edition]

The IUPAC name of is

Of the following compounds, which has the highest boiling point?

Arrange the following compounds in increasing order of their density

1. CCl₄
2. CHCl₃
3. CH₂Cl₂
4. CH₃Cl

With respect to the position of – Cl in the compound CH₃ – CH = CH – CH₂ – Cl, it is classified as ______.

What should be the correct IUPAC name of diethyl chloromethane?

C -X bond is strongest in ______.

In the reaction . X is _______.

Which of the following compounds will give racemic mixture on nucleophilic substitution by OH- ion?

1. \[\begin{array}{cc}\ce{CH3 - CH - CH2Br}\\
   |\phantom{....}\\\ce{C2H5}\end{array}\]
2. \[\begin{array}{cc}\ce{CH3}\\
   |\phantom{.}\\\ce{H3C - C - C2H5}\\
   |\phantom{.}\\\ce{Br}\end{array}\]
3. \[\begin{array}{cc}\ce{H}\\
   |\phantom{.}\\\ce{CH3 - C - C2H5}\\
   |\phantom{.}\\\ce{Cl}\end{array}\]

The treatment of ethyl formate with excess of RMgX gives

Benzene reacts with Cl₂ in the presence of FeCl₃ and in absence of sunlight to form ______.

The name of C₂F₄C₁₂ is ______.

Which of the following reagent is helpful to differentiate ethylene dichloride and ethylidene chloride?

Match the compounds given in Column I with suitable items given in Column II.

Assertion: In mono haloarenes, electrophilic substitution occurs at ortho and para positions.

Reason: Halogen atom is a ring deactivator.

Consider the reaction,

\[\ce{CH3CH2CH2Br + NaCN → CH3CH2CH2CN + NaBr}\]

This reaction will be the fastest in

Freon-12 is manufactured from tetrachloro methane by ______.

The most easily hydrolysed molecule under SN¹ condition is ______.

The carbocation formed in SN¹ reaction of alkyl halide in the slow step is ______.

The major products obtained when chlorobenzene is nitrated with HNO₃ and con H₂SO₄

Which one of the following is most reactive towards nucleophilic substitution reaction?

Ethylidene chloride on treatment with aqueous KOH gives ______.

The raw material for Raschig process

Chloroform reacts with nitric acid to produce ______.

\[\ce{acetone ->[i) CH3MgI][ii) H2O/H^{-1}]}\]X, X is ______.

Silver propionate when refluxed with Bromine in carbon tetrachloride gives ______.

Classify the following compound in the form of alkyl, allylic, vinyl, benzylic halides.

\[\ce{CH3 – CH = CH – Cl}\]

Classify the following compound in the form of alkyl, allylic, vinyl, benzylic halides.

C₆H₅CH₂I

Classify the following compound in the form of alkyl, allylic, vinyl, benzylic halides.

\[\begin{array}{cc}\ce{CH3 - CH - CH3}\\
|\phantom{..}\\\ce{Br}\end{array}\]

Classify the following compound in the form of alkyl, allylic, vinyl, benzylic halides.

CH₂ = CH – Cl

Why chlorination of methane is not possible in dark?

How will you prepare n propyl iodide from n-propyl bromide?

Which alkyl halide from the following pair is

1. chiral
2. undergoes faster S_N2 reaction?

How does chlorobenzene react with sodium in the presence of ether? What is the name of the reaction?

Give reasons for the polarity of C – X bond in haloalkane.

Why is it necessary to avoid even traces of moisture during the use of Grignard reagent?

What happens when acetyl chloride is treated with an excess of CH₃MgI?

Arrange the following alkyl halide in increasing order of bond enthalpy of RX.

CH₃Br, CH₃F, CH₃Cl, CH₃I

What happens when chloroform reacts with oxygen in the presence of sunlight?

Write down the possible isomers of C₅H₁₁Br and give their IUPAC and common names.

Mention any three methods of preparation of haloalkanes from alcohols.

Compare S_N¹ and S_N² reaction mechanisms.

Reagents and the conditions used in the reactions are given below. Complete the table by writing down the product and the name of the reaction.

Discuss the aromatic nucleophilic substitutions reaction of chlorobenzene.

t – butyl chloride reacts with aqueous KOH by S_N¹ mechanism while n – butyl chloride reacts with S_N² mechanism.

p – dichlorobenzene has a higher melting point than those of o – and m – dichlorobenzene.

In an experiment ethyliodide in ether is allowed to stand over magnesium pieces. Magnesium dissolves and product is formed

1. Name the product and write the equation for the reaction.
2. Why all the reagents used in the reaction should be dry? Explain.
3. How is acetone prepared from the product obtained in the experiment.

Write a chemical reaction useful to prepare the following:

Freon – 12 from Carbon tetrachloride

Write a chemical reaction useful to prepare the following:

Carbon tetrachloride from carbon disulphide.

What are Freons?

Discuss uses of ferons.

Discuss the environmental effects of freons.

Predict the product when Bromo ethane is treated with the following.

KNO₂

Predict the products when Bromo ethane is treated with the following.

AgNO₂

Explain the mechanism of S_N¹ reaction by highlighting the stereochemistry behind it.

Write a short note on raschig process.

Write a short note on Dows Process.

Write a short note on Darzen’s process.

Starting from CH₃MgI, How will you prepare the following?

Acetic acid

Starting from CH₃MgI, How will you prepare the following?

Acetone

Starting from CH₃MgI, How will you prepare the following?

Ethyl acetate

Starting from CH₃MgI, How will you prepare the following?

Iso propyl alcohol

Starting from CH₃MgI, How will you prepare the following?

Methyl cyanide

Complete the following reaction.

\[\ce{CH3 - CH = CH2 + HBr ->[Peroxide]}\]

Complete the following reaction.

\[\ce{CH3 - CH2 - Br + NaSH ->[alcohol][H2O]}\]

Complete the following reaction.

\[\ce{C6H5Cl + Mg ->[THF]}\]

Complete the following reaction.

\[\ce{CHCl3 + HNO3 ->[\Delta]}\]

Complete the following reaction.

\[\ce{CCl4 + H2O ->[\Delta]}\]

Explain the preparation of the following compound.

DDT

Explain the preparation of the following compound.

Chloroform

Explain the preparation of the following compound.

Biphenyl

Explain the preparation of the following compound.

Chloropicrin

Explain the preparation of the following compound.

Freon-12

An organic compound (A) with molecular formula C₂H₅Cl reacts with KOH gives compounds (B) and with alcoholic KOH gives compound (C). Identify (A), (B), (C).

The simplest alkene (A) reacts with HCl to form a compound (B). Compound (B) reacts with ammonia to form compound (C) of molecular formula C₂H₇N. Compound (C) undergoes carbylamine test. Identify (A),
(B) and (C).

A hydrocarbon C₃H₆(A) reacts with HBr to form compound (B). Compound (B) reacts with aqueous potassium hydroxide to give (C) of molecular formula C₃H₆O. What are the (A), (B) and (C). Explain the reactions.

Two isomers (A) and (B) have the same molecular formula C₂H₄Cl₂. Compound (A) reacts with aqueous KOH gives compound (C) of molecular formula C₂H₄O. Compound (B) reacts with aqueous KOH gives compound (D) of molecular formula C₂H₆O₂. Identify (A), (B), (C) and (D).