Chemistry Topic-Wise Test - 4 | 45 Questions MCQ Test

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This mock test of Chemistry Topic-Wise Test - 4 for NEET helps you for every NEET entrance exam. This contains 45 Multiple Choice Questions for NEET Chemistry Topic-Wise Test - 4 (mcq) to study with solutions a complete question bank. The solved questions answers in this Chemistry Topic-Wise Test - 4 quiz give you a good mix of easy questions and tough questions. NEET students definitely take this Chemistry Topic-Wise Test - 4 exercise for a better result in the exam. You can find other Chemistry Topic-Wise Test - 4 extra questions, long questions & short questions for NEET on EduRev as well by searching above.

QUESTION: 1

An organic compound ‘X’ on treatment with acidified gives a compound ‘Y’ which reacts with and sodium carbonate to form tri-iodomethane. The compound ‘X’ is

Solution:

QUESTION: 2

Heating methyl phenyl ether with HI gives

A. Methanol Iodobenzene
B. Methyl iodide Iodobenzene
C. Methyl alcohol Benzyl alcohol
D. Methyl iodide Phenol

Solution:

QUESTION: 3

In the following compounds,
The order of acidity is

A. III>IV>I>II
B. I>IV>III>II
C. II>I>III>IV
D. IV>III>I>II

Solution:

QUESTION: 4

Which of the following is a Riemer-Tiemann reaction

A.
B.
C.
D. None of them

Solution:

QUESTION: 5

Victor Meyer’s test is not given by

Solution:

QUESTION: 6

When phenol is treated withe excess bromine water

A. m-Bromophenol
B. o-and p-Bromophenols
C. 2,4-Dibromophenol
D. 2,4,6-Tribromophenols

Solution:

QUESTION: 7

n-Propyl alcohol and isopropyl alcohol can be chemically distinguished by which reagent

A.
B. reduction
C. oxidation with potassium dichromate
D. Ozonolysis

Solution:

QUESTION: 8

Glycerol is treated with excess of HI at room temperature and then with more HI at 426K. The

final product obtained is

A. Allyl iodide
B. Isopropyl iodide
C. Propane
D. Propene

Solution:

QUESTION: 9

Phenol reacts with PCl₅ to give mainly

A.

C₆H₅Cl
B.

C₆Cl₆
C.

(C₆H₅)₃PO₃
D.

(C₆H₅)₃PO₄

Solution:

Answer :D

Solution :

Phenyl reacts with PCl₅ to give only a small amount of chlorobenzene, the main product is triphenyl phophate, (C₆H₅)₃PO₄, the ester of phosphoric acid. With PCl₃, we get ester of phosphoric acid, (C₆H₅)₃PO₃.

QUESTION: 10

In the reaction of phenol with

and aqueous NaOH at

(343 K), the electrophile attacking the ring is

Solution:

QUESTION: 11

Which of the following on oxidation gives a ketone ?

A. Primary alcohol
B. Secondary alcohol
C. Tertiary alcohol
D. All of these

Solution:

QUESTION: 12

Dow’s reaction involves

A. Electrphilic addition
B. Nucleophilic addition
C. Electrophilic substitution
D. Necleophilic substitution

Solution:

QUESTION: 13

Correct increasing order of acidity is as follows ?

Solution: D is correct because increasing order of replaceable hydrogen.

QUESTION: 14

Which of the following cannot be made by using Williamson’s synthesis ?

A. Methoxybenzene
B. Benzyl p-nitrophenyl ether
C. Methyl tertiary butyl ether
D. Di-tert. butyl ether

Solution:

QUESTION: 15

The compound obtained by the reaction of ethene with diborane followed by hydrolysis with alkaline

hydrogen peroxide is

A. Ethanol
B. Propanol
C. Ethanal
D. Triethyl bordie

Solution:

QUESTION: 16

When benzenediazonium chloride is treated with water, the compound formed is

Solution:

QUESTION: 17

Which one of the following compounds will be most readily attacked by an electrophile ?

A. Chlorobenzene
B. Benzene
C. Phenol
D. Toluene

Solution:

QUESTION: 18

The alcohol which does not give a stable compound on dehydration is

A. Ethyl alcohol
B. Methyl alcohol
C. n-Propyl alcohol
D. n-Butyl alcohol

Solution:

QUESTION: 19

What amount of bromine will be required to convert 2g of phenol into 2,4, 6-tribromophenol ?

A. 4.0
B. 6.0
C. 10.22
D. 20.44

Solution:

QUESTION: 20

The reaction of

with acetone and hydrolysis of the resulting product gives

Solution:

QUESTION: 21

Identify X in the following sequence of reaction

Solution:

QUESTION: 22

Which of the following compounds will react with two moles of

Solution:

QUESTION: 23

Ethyl ethanoate

P.The product P will be

Solution:

QUESTION: 24

Which of the following pairs of solutions is isotonic ?

A. 6% urea and 6% glucose (w/v)
B. 18% urea and 18% glucose (w/v)
C. 6% urea and 18% glucose (w/v)
D. 34.2% sucrose and 60% glucose (w/v)

Solution:

QUESTION: 25

At 298K, highest osmotic pressure is exhibited by a 0.1M solution of

A. urea
B. glucose
C. KCl
D.

Solution:

QUESTION: 26

Which of the following is an electrically prepared semipermeable membrane ?

A. Calcium phosphate
B. Ferrous ferriycanide
C. Copper ferrocyanide
D. Potassium ferrocyanide

Solution:

QUESTION: 27

What will happen if an egg whose white surface is removed by dilute HCl solution is placed in a saturated solution of NaCl ?

A. The egg will dissolve in the NaCl solution
B. The egg will shrink
C. The egg will swell
D. Nothing will happen

Solution:

QUESTION: 28

The van’t Hoff factor for a 0.1 M

solution is 4.20. The degree of dissociation is

A. 80%
B. 90%
C. 78%
D. 83%

Solution:

QUESTION: 29

The molar boiling-point constant for water is 0.513 Km–1. When 0.1 mole of sugar is dissolved in 200.0 g of water, the solution boils under a pressure of 1.0 atm at

A. 100.513oC
B. 100.0513oC
C. 100.256oC
D. 101.025oC

Solution:

QUESTION: 30

When mercuric iodide is added to an aqueous solution of potassium iodide (in excess), a soluble complex,

is formed. Then,

A. the freezing point of the resulting solution is raised
B. the freezing point of the resulting solution is lowered
C.
the freezing point of the resulting solution does not change
D. the boiling point of the resulting does not change

Solution:

QUESTION: 31

The degree of association

is given by the expression

Solution:

QUESTION: 32

The average osmotic pressure of human blood is 7.8 bar at 37oC. What is the concentration of an aqueous NaCl solution that could be introduced in the bloodstream?