11th Chemistry Monthly Test - 1 ( Haloalkanes and Haloarenes )

MABS Institution

11th Chemistry Monthly Test - 1 ( Haloalkanes and Haloarenes )-Aug 2020

Time : 2.30 Hours

Part - A

Multiple Choice Question - Answer All Question

Match the list I with list II and select the correct answer using the code given below the lists

List-I List-II

A Chloromycetin 1 Malaria

B Thyroxine 2 Typhoid Fever

C Chloroquine 3 Anaesthetic

D Halothane 4 Goitre

A B C D

1 2 3 4
A B C D

3 1 4 2
A B C D

2 3 1 4
A B C D

4 2 3 1

The treatment of ethyl formate with excess of RMgX gives

\(R-\underset { \overset { || }{ O } }{ C } -R\)
\(R-\underset { \overset { | }{ OH } }{ CH } \quad R\)
R- CHO
R- O- R

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

Column I
(Compound) Column II
(Uses)

A. Iodoform 1. Fire extinguisher

B. Carbontetra chloride 2. Insecticide

C. CFC 3. Antiseptic

D. DDT 4. Refrigerants

Column I (Compound)	Column II (Uses)
A. Iodoform	1. Fire extinguisher
B. Carbontetra chloride	2. Insecticide
C. CFC	3. Antiseptic
D. DDT	4. Refrigerants

A → 2 B → 4 C →1 D →3
A → 3 B → 2 C → 4 D → 1
A → 1 B → 2 C →3 D → 4
A → 3 B → 1 C →4 D → 2

acetone \(\overset { i){ CH }_{ 3 }Mgl }{ \underset { ii){ H }_{ 2 }O/{ H }^{ -1 } }{ \longrightarrow } } X,\) X is

2-propanol
2-methyl-2-propanol
1-propanol
acetonol

The most easily hydrolysed molecule under SN₁ condition is

allyl chloride
ethyl chloride
ispropylchloride
benzyl chloride

\({ H }_{ 3 }C-\overset { \underset { | }{ { C }_{ 2 }{ H }_{ 5 } } }{ \underset { \overset { | }{ { C }_{ 3 }{ H }_{ 7 } } }{ C } } -Cl+\overset { \ominus }{ OH } \overset { S{ N }_{ 1 } }{ \longrightarrow } { H }_{ 3 }C-\overset { \underset { | }{ { C }_{ 2 }{ H }_{ 5 } } }{ \underset { \overset { | }{ { C }_{ 3 }{ H }_{ 7 } } }{ C } } -OH+\overset { \ominus }{ Cl } \)
What is the stereo chemistry ofthe above reaction?

complete racimisation
complete inversion
maximum inversion with partial racemisation
maximum racemisation with partial inversion

Statement I : Primary alkyl halides on oxidation with DMSO gives aldehydes.
Statement II : DMSO is used as polar aprotic solvent.

Both. statement I and statement II are true individually and statement II explains statement
Both statement I and statement II are true individually but statement II does not explain statement 1.
Only statement Iis true, but statement II is false.
Both statement I and II are false

Arrange the following compounds in increasing order of their density
A) CCl₄
B) CHCl₃
C) CH₂Cl₂
D) CH₃Cl

D < C < B < A
C > B > A > D
A < B < C < D
C > A > B > D

Which one of the following is used as a metal cleaning solvent?

Isopropylidene chloride
Methylene chloride
Chloroform
Iodoform

Ethylidene chloride on treatment with aqueous KOH gives

acetaldehyde
ehtyleneglycol
formaldehyde
glycoxal

Part - B

Generic 2 - Answer All Question

How is iodoethane converted to ethane?

How does nickel react with chloroform?

Explain the action of sodium hydrogen sulphide with bromo ethane?

Discuss the aromatic nucleophilic substitutions reaction of chlorobenzene.

What are freons? How are they named? Give two examples
Starting from CH₃MgI, How will you prepare the following?
i) Acetic acid
ii) Acetone
iii) Ethyl acetate
iv) Iso propyl alcohol
v) Methyl cyanide.

How many isomers are possible for the formula C₃H₇F? Give their structures and names.

How does HBr react with propene?

Arrange the following alkyl halide in increasing order of bond enthalpy of RX
CH₃Br, CH₃F, CH₃Cl, CH₃I

Classify the following compounds in the form of alkyl, allylic, vinyl, benzylic halides
(i) CH₃ – CH = CH – Cl
(ii) C₆H₅CH₂I
(iii) \({ CH }_{ 3 }-\underset { \overset { | }{ Br } }{ CH } -{ CH }_{ 3 }\)
(iv) CH₂ = CH – Cl

Part - C

Generic 3 - Answer All Question

Explain why:
(i) the dipole moment of chlorobenzene is lower than that of cyclohexyl chloride?
(ii) alkyl halides though polar, are immiscible with water?
(iii) Gringard reagents should be prepared under anhydrous conditions?

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

Explain the hydrolysis of 2-bromobutane with aqueous KOH.

Write the equations for the preparation of l-iodobutane from.

What are ogranometallic compounds? Give one example: Explain the nature of the carbon-metal bond.

Mention the uses of DDT.
What happens when alcoholic KOH is treated with (i) Ethylideue dichloride (ii) Ethylene dichloride?

Explain the laboratory preparation of chloroform.

Give two examples for
(1) gem dihalide
(2) vicinal dihalide.

What is DDT? How is it prepared?

Part - D

Generic 5 - Answer All Question

Predict the product:
(i) Chloroform + O₂ \(\longrightarrow \) ?
(ii) CCl₄ + H₂O \(\longrightarrow \)?
(iv)
(iv) \({ CH }_{ 3 }-CH{ Cl }_{ 2 }+KOH\overset { { C }_{ 2 }{ H }_{ 5 }{ OH }_{ 3 } }{ \longrightarrow } \)?
(v) Ethylene glycol + 2PCI₅ \(\longrightarrow \)?

An organic compound u24b6 of molecular formula C₂H₆O reacts with thionyl chloride in the presence of pyridine gives u24b7 C₂H₅Cl. u24b7 on reaction with alcoholic KOH gives ©, C₂H₄. ©ufe0f on treatment with Cl₂ gives C₂H₄Cl₂ as u24b9. Identify u24b6,u24b7,u24b8,u24b9 and explain the reaction.

Explain SN2mechanism with suitable examples.

An organic compound u24b6 of molecular formula C₂H₂ reacts with HCI to give C₂ H₄Cl₂ asu24b7.u24b7on reaction with aqueous KOH will give C₂H₄Oas u24b8 Identify u24b6,u24b7, © and explain the reactions involved.

Explain the classification of organic compounds with example.

Describe electrophilic substitution reaction of chlorobenzene with equations.

Starting from methyl magnesium iodide, how would you prepare
(i) Ethyl methyl ether
(ii) methyl cyanide
(iii) methane

Answer the following.
(i) Predict the major product formed when HCI is added to iso-butylene,
(ii) What happens when CH3-Br is treated with KCN?
(iii) Identify the chiral molecule in the following pair.

(iv) Arrange the compounds in the order of I reactivity towards S_N2 displacement. 2-Bromo-2-methylbutane, I-Bromopentane, 2-Bromo pentane.
The simplest aromatic hydrocarbon C₆H₆ reactsu24b7 on treatment with sodium hydroxide will (C₆H₅OH), Phenol, © as the product. Also Cl₂ to giveu24b6 which on reaction with sodium hydroxide gives u24b7.u24b7 of molecular formula C₆H₆O. @ on treatment with ammonia will give C₆H₇N as @. Identify u24b6, u24b7, ©, and explain the reactions involved.

An organic compound u24b6 of molecular formula C₃H₆ react with HBr in the presence of peroxide to give C₃H₇Br as u24b7, u24b7on reaction with aqueous KOH gives u24b8 with molecular formula C₃H₅O. Identify u24b6,u24b7 and u24b8

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List-I		List-II
A	Chloromycetin	1	Malaria
B	Thyroxine	2	Typhoid Fever
C	Chloroquine	3	Anaesthetic
D	Halothane	4	Goitre

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9Th Standard

11th Chemistry Monthly Test - 1 ( Haloalkanes and Haloarenes )

MABS Institution

11th Chemistry Monthly Test - 1 ( Haloalkanes and Haloarenes )-Aug 2020

Part - A

Multiple Choice Question - Answer All Question

Match the list I with list II and select the correct answer using the code given below the lists List-I List-II A Chloromycetin 1 Malaria B Thyroxine 2 Typhoid Fever C Chloroquine 3 Anaesthetic D Halothane 4 Goitre

The treatment of ethyl formate with excess of RMgX gives

Match the compounds given in Column I with suitable items given in Column II Column I (Compound) Column II (Uses) A. Iodoform 1. Fire extinguisher B. Carbontetra chloride 2. Insecticide C. CFC 3. Antiseptic D. DDT 4. Refrigerants

acetone \(\overset { i){ CH }_{ 3 }Mgl }{ \underset { ii){ H }_{ 2 }O/{ H }^{ -1 } }{ \longrightarrow } } X,\) X is

The most easily hydrolysed molecule under SN1 condition is

Statement I : Primary alkyl halides on oxidation with DMSO gives aldehydes. Statement II : DMSO is used as polar aprotic solvent.

Arrange the following compounds in increasing order of their density A) CCl4 B) CHCl3 C) CH2Cl2 D) CH3Cl

Which one of the following is used as a metal cleaning solvent?

Ethylidene chloride on treatment with aqueous KOH gives

Part - B

Generic 2 - Answer All Question

How is iodoethane converted to ethane?

How does nickel react with chloroform?

Explain the action of sodium hydrogen sulphide with bromo ethane?

Discuss the aromatic nucleophilic substitutions reaction of chlorobenzene.

What are freons? How are they named? Give two examples

Starting from CH3MgI, How will you prepare the following? i) Acetic acid ii) Acetone iii) Ethyl acetate iv) Iso propyl alcohol v) Methyl cyanide.

How many isomers are possible for the formula C3H7F? Give their structures and names.

How does HBr react with propene?

Arrange the following alkyl halide in increasing order of bond enthalpy of RX CH3Br, CH3F, CH3Cl, CH3I

Classify the following compounds in the form of alkyl, allylic, vinyl, benzylic halides (i) CH3 – CH = CH – Cl (ii) C6H5CH2I (iii) \({ CH }_{ 3 }-\underset { \overset { | }{ Br } }{ CH } -{ CH }_{ 3 }\) (iv) CH2 = CH – Cl

Part - C

Generic 3 - Answer All Question

Explain why: (i) the dipole moment of chlorobenzene is lower than that of cyclohexyl chloride? (ii) alkyl halides though polar, are immiscible with water? (iii) Gringard reagents should be prepared under anhydrous conditions?

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

Explain the hydrolysis of 2-bromobutane with aqueous KOH.

Write the equations for the preparation of l-iodobutane from.

What are ogranometallic compounds? Give one example: Explain the nature of the carbon-metal bond.

Mention the uses of DDT.

What happens when alcoholic KOH is treated with (i) Ethylideue dichloride (ii) Ethylene dichloride?

Explain the laboratory preparation of chloroform.

Give two examples for (1) gem dihalide (2) vicinal dihalide.

What is DDT? How is it prepared?

Part - D

Generic 5 - Answer All Question

Predict the product: (i) Chloroform + O2 \(\longrightarrow \) ? (ii) CCl4 + H2O \(\longrightarrow \)? (iv) (iv) \({ CH }_{ 3 }-CH{ Cl }_{ 2 }+KOH\overset { { C }_{ 2 }{ H }_{ 5 }{ OH }_{ 3 } }{ \longrightarrow } \)? (v) Ethylene glycol + 2PCI5 \(\longrightarrow \)?

An organic compound u24b6 of molecular formula C2H6O reacts with thionyl chloride in the presence of pyridine gives u24b7 C2H5Cl. u24b7 on reaction with alcoholic KOH gives ©, C2H4. ©ufe0f on treatment with Cl2 gives C2H4Cl2 as u24b9. Identify u24b6,u24b7,u24b8,u24b9 and explain the reaction.

Explain SN2mechanism with suitable examples.

An organic compound u24b6 of molecular formula C2H2 reacts with HCI to give C2 H4Cl2 asu24b7.u24b7on reaction with aqueous KOH will give C2H4Oas u24b8 Identify u24b6,u24b7, © and explain the reactions involved.

Explain the classification of organic compounds with example.

Describe electrophilic substitution reaction of chlorobenzene with equations.

Starting from methyl magnesium iodide, how would you prepare (i) Ethyl methyl ether (ii) methyl cyanide (iii) methane

An organic compound u24b6 of molecular formula C3H6 react with HBr in the presence of peroxide to give C3H7Br as u24b7, u24b7on reaction with aqueous KOH gives u24b8 with molecular formula C3H5O. Identify u24b6,u24b7 and u24b8

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Match the list I with list II and select the correct answer using the code given below the lists

List-I List-II

A Chloromycetin 1 Malaria

B Thyroxine 2 Typhoid Fever

C Chloroquine 3 Anaesthetic

D Halothane 4 Goitre

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

Column I
(Compound) Column II
(Uses)

A. Iodoform 1. Fire extinguisher

B. Carbontetra chloride 2. Insecticide

C. CFC 3. Antiseptic

D. DDT 4. Refrigerants

The most easily hydrolysed molecule under SN₁ condition is

Statement I : Primary alkyl halides on oxidation with DMSO gives aldehydes.
Statement II : DMSO is used as polar aprotic solvent.

Arrange the following compounds in increasing order of their density
A) CCl₄
B) CHCl₃
C) CH₂Cl₂
D) CH₃Cl

Starting from CH₃MgI, How will you prepare the following?
i) Acetic acid
ii) Acetone
iii) Ethyl acetate
iv) Iso propyl alcohol
v) Methyl cyanide.

How many isomers are possible for the formula C₃H₇F? Give their structures and names.

Arrange the following alkyl halide in increasing order of bond enthalpy of RX
CH₃Br, CH₃F, CH₃Cl, CH₃I

Classify the following compounds in the form of alkyl, allylic, vinyl, benzylic halides
(i) CH₃ – CH = CH – Cl
(ii) C₆H₅CH₂I
(iii) \({ CH }_{ 3 }-\underset { \overset { | }{ Br } }{ CH } -{ CH }_{ 3 }\)
(iv) CH₂ = CH – Cl

Explain why:
(i) the dipole moment of chlorobenzene is lower than that of cyclohexyl chloride?
(ii) alkyl halides though polar, are immiscible with water?
(iii) Gringard reagents should be prepared under anhydrous conditions?

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

Give two examples for
(1) gem dihalide
(2) vicinal dihalide.

Predict the product:
(i) Chloroform + O₂ \(\longrightarrow \) ?
(ii) CCl₄ + H₂O \(\longrightarrow \)?
(iv)
(iv) \({ CH }_{ 3 }-CH{ Cl }_{ 2 }+KOH\overset { { C }_{ 2 }{ H }_{ 5 }{ OH }_{ 3 } }{ \longrightarrow } \)?
(v) Ethylene glycol + 2PCI₅ \(\longrightarrow \)?

An organic compound u24b6 of molecular formula C₂H₂ reacts with HCI to give C₂ H₄Cl₂ asu24b7.u24b7on reaction with aqueous KOH will give C₂H₄Oas u24b8 Identify u24b6,u24b7, © and explain the reactions involved.

Starting from methyl magnesium iodide, how would you prepare
(i) Ethyl methyl ether
(ii) methyl cyanide
(iii) methane

An organic compound u24b6 of molecular formula C₃H₆ react with HBr in the presence of peroxide to give C₃H₇Br as u24b7, u24b7on reaction with aqueous KOH gives u24b8 with molecular formula C₃H₅O. Identify u24b6,u24b7 and u24b8