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11th Chemistry Monthly Test - 2 ( Haloalkanes and Haloarenes )

MABS Institution

11th Chemistry Monthly Test - 2 ( Haloalkanes and Haloarenes )-Aug 2020

Time : 2.30 Hours

Part - A

Multiple Choice Question - Answer All Question

The reactivity of alcohols with haloacid is _________.

3° > 2° > 1°
1° > 2° > 3°
2° > 3° > 1°
3° > 1° > 2°

Which one of the following reacts with CH3MgI followed by hydrolysis and gives isopropyl alcohol?

CH₃COCHO₃
CH₃CHO
HCHO
CNCl

The order of stability of the carbonium ion is__________.

1°> 2°>3°
2°> 3°>1°
2°> 1°>3°
3°>2°>1^o

Among the following, which is not an allylic halide?

3-bromo-2-methyl propene
4-bromo but-l-ene and
3-bromo-2-methyl but -1- ene
All of these

In SN₁, the rate of the reaction depends on the ______________.

nucleophile
medium
concentration of the substrate
none of the above

Which of the following reagent is used to distinguish gem-dihalides and vicinal dihalides?

Alcoholic KOH
Aqueous KOH
FeCI₃/CI₂
Ethanol

Which one of the following is used to test primary amines?

Schiff's test
Carbylamine test
Dye test
Silver mirror test

Ethylidene chloride on treatment with aqueous KOH gives

acetaldehyde
ehtyleneglycol
formaldehyde
glycoxal

For reacting with HCI, the alcohol which does not require ZnCI₂ is

PCl₃
PCl₅
SOCl₂
None of the above

________________is used in the treatment of goitre

Halothane
Benzoquinone
Chloromycetin
Thyroxine

Part - B

Generic 2 - Answer All Question

Draw the structures of
(i) 1-bromo-2, 3-dicholorobutane
(ii) 2-bromo-3-chloro-2, 4-dimethyl pentane

How does benzene diazonium chloride react with HBF₄?

Write the IUPAC names of
(i) CH₂=CHCl
(ii) CH₂=CH-CH2Br.

How does nickel react with chloroform?

Why haloalkanes are insoluble in water but soluble in organic solvents?
What happens when bromoethane is treated with moist silver oxide?

Explain Carbylamine reaction.(or) Give the characteristic test for primary amine.

Part - C

Generic 3 - Answer All Question

What are polyhalogen compounds? Give its types with example.

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?

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

What are the uses of carbon tetrachloride?

Simplest alkene (A) reacts with HCl to form 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)

Compare the bond length C-X in haloarenes and C-X in haloalkanes
Haloalkanes produce mixture of olefins- say true or false and justify yoyr answer,

Part - D

Generic 5 - Answer All Question

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.

Two isomers of formula C₄H₉ Br are u24b6 and B, u24b6 on reaction with alcoholic KOH gives of molecular formula C₄H₈by E₁ reaction. .u24b7 on reaction with alcoholic KOH gives u24b9 and u24ba as products by Saytzeff's rule. Identify A, B, C, D, E

Describe electrophilic substitution reaction of chlorobenzene with equations.

A simple aromatic hydrocarbon u24b6 reacts with Cl₂ to give @ of molecular formula C₆H₅Cl.u24b7 on reaction with ethyl chloride along with sodium metal gives © of formula C₈H₁₀. © alone reacts with Na metal in the presence of ether to give © C₁₂H₁₀. Identify u24b6, u24b7, © & u24b9

Describe E₁reaction mechanism with a suitable example

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

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 \(\longrightarrow \)?

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