NEET Chemistry Chapter Wise Mock Test – Mock Test 3

NEET Chemistry Chapter Wise Mock Test – Mock Test 3

Question 1:
3 moles of a perfect gas is expanded isothermally and reversibly from a volume of 1 L to a volume of 10 L at 27°C. The maximum work done is
(a) 190 L atm
(b) 170.17 L atm
(c) 192.25 L atm
(d) 185.23L atm

Question 2:
Naturally occurring boron consists of two isotopes whose atomic weights are 10.01 and 11.01. The atomic weight of natural boron is 10.81. The percentage of each isotope in natural boron is
(a) 20, 80
(b) 40, 60
(c) 60, 40
(d) 80, 20

Question 3:
Arrange the following compounds in order of increasing dipole moment.
I. Toluene                            II. m-dichlorobenzene
III. o-dichlorobenzene     IV. p-dichlorobenzene
(a) I < IV< II < III
(b) IV < I < II < III
(c) IV < I < III < II
(d) IV .< II < I < III

Question 4:
If the molecule of HCI were totally polar, the expected value of dipole moment is 6.12 D (dbye), but the experimental value of dipole moment was 1.03 D. Calculate the percentage of ionic character.
(a) 17
(b) 83
(c) 50
(d) Zero

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Question 10:

(a) 0.520°C
(b) 0.4675°C
(c) – 0.4675°C
(d) – 0.520°C

Question 11:
Which of the following reagents can be used to separate a mixture of aniline and phenol?
I. Water              II. NaOH
III. NaHCOg     IV. HCI
(a) I and II
(b) II and III
(c) I and IV
(d) II and IV

Question 12:

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Question 15:
Which of the following compounds exhibits stereoisomerism?
(a) 2-methylbutene-1
(b) 3-methylbutanoic acid
(c) 3-methylbutyne-3
(d) 2-methyl butanoic acid

Question 16:

Question 17:
The normality of orthophosphoric acid having purity of 70% by weight and specific gravity 1.54 is
(a) 11 N
(b) 22 N
(c) 33 N
(d) 44 N

Question 18:

Question 19:
Which of the following species is not expected to be a ligand?
(a) NO
(b) NHJ
(c) NH2CH2CH2IH2
(d) CO

Question 20:

Question 21:
Which is norbide?
(a) Silicon carbide
(b) Boron carbide
(c) Carbon carbide
(d) Magnesium carbide

Question 22:
Epichlorohydrin is
(a) 3-chloropropane
(b) 3-chloropropan-1-ol
(c) 3-chloro-1,2-epoxypropane
(d) None of the above

Question 23:
An organic compound of molecular formula C4H10O does not react with sodium. With excess of Hi, it gives only one type of alkyl halide. The compound is
(a) ethoxyethane
(b) 2-methoxypropane
(c) 1-methoxypropane
(d) 1-butanol

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Question 27:
Which of the following is not a function of protein ?
(a) Nail formation
(b) Skin formation
(c) Muscle formation
(d) Providing energy for metabolism

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Question 31:
The time taken for 90% of a first order reaction to complete is approximately ‘
(a) 1.1 times that of half-life
(b) 2.2 times that of half-life
(c) 3.3 times that of half-life
(d) 4.4 times that of half-life

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Question 35:
The cell constant of a conductivity cell
(a) changes with change of electrolyte
(b) changes with change of concentration of electrolyte
(c) changes with temperature of electrolyte
(d) remains constant for a cell

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Question 40:
The ionisation energy of ef-block elements of a given period vary only slightly from one another. This is because of
(a) increase in nuclear charge
(b) decrease in nuclear charge
(c) increase in screening effect
(d) Both (a) and (c)

Direction (Q. No. 41-42) In the following questions more than one of the answers given may be correct. Select the correct answers and mark it,according to the codes.
Codes i .
(a) 1, 2 and 3 are correct
(b) 1 and 2 are correct
(c) 2 and 4 are correct
(d) 1 and 3 are correct

Question 41:

Question 42:
A new carbon bond formation is possible in
1. Cannizzaro’s reaction
2. Friedel-Crafts reaction
3. Clemmensen reaction
4. Reimer-Tiemann reaction

Question 43:

Direction (Q. NO. 44-45) Each of these questions contains two statements: Assertion and Reason. Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.
(a) Assertion is true, Reason is true; Reason is the correct explanation for Assertion
(b) Assertion is true, Reason is true; Reason is not a correct explanation for Assertion
(c) Assertion is true, Reason is false
(d) Assertion is false, Reason is true

Question 44:
Assertion Liquid NH3 is used for refrigeration.
Reason Liquid NH3 quickly vaporises.

Question 45:
Assertion Synthetic fibres like nylon-6, 6 are weak fibres.
Reason They have high molecular weight and high molecular size.

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