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SRMJEEE Chemistry Mock Test - 9

35 Questions MCQ Test SRMJEEE Subject Wise & Full Length Mock Tests | SRMJEEE Chemistry Mock Test - 9

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Attempt SRMJEEE Chemistry Mock Test - 9 | 35 questions in 50 minutes | Mock test for JEE preparation | Free important questions MCQ to study SRMJEEE Subject Wise & Full Length Mock Tests for JEE Exam | Download free PDF with solutions

QUESTION: 1

A compound X undergoes reduction with LiAlH₄ to yield Y. When vapours of Y are passed over freshly reduced copper at 300°C. X is formed. What is Y?

A.
CH₃COCH₃
B.
CH₃CHO
C.
CH₃CH₂OH
D.
CH₃ ― O ― CH₃

Solution:

QUESTION: 2

Schiff's reagent is

A.
Alkine phenolphthalein
B.
Methyl red
C.
Rosaniline hydrochloride
D.
Red litmus

Solution:

QUESTION: 3

Which of the following element is responsible for oxidation of water to O₂ in biological processes?

A.
Fe
B.
Mn
C.
Cu
D.
Mo

Solution:

QUESTION: 4

Which one of the following has the minimum boiling point?

A.
Isobutane
B.
I-butyne
C.
I-butene
D.
n-butane

Solution:

QUESTION: 5

The compound formed in the borax bead test of Cu²⁺ ion in oxidising flame is

A.
Cu
B.
CuBO₃
C.
Cu(BO₂)₂
D.
None of these

Solution:

QUESTION: 6

The reacting ion in the nitration of benzene is

Solution:

QUESTION: 7

Our sun belongs to which of the following spectra?

A.
O
B.
B
C.
F
D.
G

Solution:

QUESTION: 8

The most stable carbonium ion is:

A.
Methyl carbonium ion
B.
Primary carbonium ion
C.
Secondary carbonium ion
D.
Tertiary carbonium ion

Solution:

QUESTION: 9

Consider the following compounds :
1. CH₂N₂
2. CH₂ = C = O
3. CH₂I₂
Those compounds which would generate a carbene on exposure to ultraviolet light include :

A.
1, 2 and 3
B.
1 and 3
C.
1 and 2
D.
2 and 3

Solution:

QUESTION: 10

Which of the following molecules has the highest dipole moment?

A.
CO₂
B.
NF₃
C.
BCl₃
D.
CCl₄

Solution:

QUESTION: 11

Which of the following bonds has highest average bond energy ?

A.
S = O
B.
C = O
C.
C = N
D.
N = N

Solution:

QUESTION: 12

The pieces of wood burn faster than a log of wood of the same mass, because

A.
log of wood has larger surface area
B.
pieces of wood have larger surface area
C.
log of wood has higher density than pieces of wood
D.
pieces of wood have higher density than log of wood

Solution:

QUESTION: 13

The reaction N₂ + O₂ → 2NO is endothermic . The forward reaction is

A.
favoured by decrease in temperature
B.
favoured by increase in pressure
C.
unchanged on changing in pressure
D.
equilibrium point shifts by adding catalyst

Solution:

QUESTION: 14

The reaction of chloroform with alcoholic KOH and p-toludine forms

Solution:

QUESTION: 15

An exothermic reaction is one in which the reacting substances

A.
have more energy than the products
B.
have less energy than the products
C.
have the same energy as the products
D.
are at a higher temperature than the products

Solution:

QUESTION: 16

Substances which bring body temperature down are known as

A.
Antipyretics
B.
Analgesics
C.
Antibiotics
D.
Hypnotics

Solution:

QUESTION: 17

In which of the following compounds,carbon uses sp³ hybrid orbitals only for bonding ?

A.
HCOOH
B.
CH₃CHO
C.
(CH₃)₃COH
D.
(NH₃)₂CO

Solution:

QUESTION: 18

The standard reduction potential at 298 K for the following half cell reaction are given below

Which one is the strongest reducing agent?

A.
Zn
B.
Cr
C.
H₂
D.
Fe⁺²

Solution:

QUESTION: 19

Which of the following is correctly matched?

A.
C ― C bond length = 0.077 nm
B.
Ionic radius of Na⁺ = 0.136nm
C.
C ― Cl bond length = 0.176nm
D.
Ionic radius of F⁻ = 0.095 nm

Solution:

C-Cl bond length is 0.176 nm; ionic radii of Na⁺ and F ^- are 0.095 and 0.136 nm respectively; C-C bond length is 0.154 nm.

QUESTION: 20

At what temperature will the average speed of CH₄ molecules have the same value as O₂ has at 300 K

A.
1200 K
B.
150 K
C.
600 K
D.
300 K

Solution:

QUESTION: 21

Select the true statement about benzene from amongst the following

A.
because of unsaturation benzene easily undergoes addition reactions
B.
There are two types of C ― C bonds in benzene molecule
C.
There is a cyclic delocalisation of π electrons in benzene
D.
Monosubstitution of benzene group three isomeric substances

Solution:

QUESTION: 22

The pH indicators are

A.
salts of strong acids and strong bases
B.
salts of weak acids and weak bases
C.
either weak acids or weak bases
D.
either strong acids or strong bases

Solution:

QUESTION: 23

Which of the following is not isomeric with diethyl ether?

A.
Methyl n-propyl ether
B.
Butan-1-ol
C.
2-methyl propan-2-ol
D.
Butan-2-one

Solution:

QUESTION: 24

A human body required 0.01 μC activity of radioactive substance for 24 hrs. Half life of radioactive substance is 6 hours. Then injection of maximum activity of radioactive substance (in μC) can be injected is

A.
0.08
B.
0.04
C.
0.16
D.
0.32

Solution:

QUESTION: 25

Aniline in a set of reactions yielded a product D

The structure of D is

A.
C₆H₅NHOH
B.
C₆H₅NHCH₂CH₃
C.
C₆H₅CH₂NH₂
D.
C₆H₅CH₂OH

Solution:

QUESTION: 26

Dow's reaction involves

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

Solution:

QUESTION: 27

Select incorrect statement:

A.
Homolytic fission results in the formation of free radicals
B.
Heterolytic fission results in the formation of Lewis acid and Lewis base
C.
Completion of the octet provides a major driving force for the Lewis acid-base reaction
D.
Steric bulky group increases nucleophilicity

Solution:

QUESTION: 28

In a polymer 30% molecules have molecular weight 20,000, 40% molecules have molecular weight 30,000 and the rest 30% molecules have molecular weight 60000. The weight average molecular weight of the polymer is

A.
26,000
B.
30,000
C.
36,000
D.
43,000

Solution:

QUESTION: 29

In paper chromotagraphy,

A.
moving phase is liquid and stationary phase is solid
B.
moving phase is liquid and stationary phase is liquid
C.
moving phase and is solid and stationary phase is solid
D.
moving phase is solid and stationary phase is liquid

Solution:

QUESTION: 30

The oxidation number of Mn in KMnO₄ is

A.
+7
B.
-7
C.
+1
D.
-1

Solution:

QUESTION: 31

Semiconductors are derived from compounds of

A.
p-block elements
B.
Lanthanides
C.
Actinides
D.
Transition elements

Solution:

QUESTION: 32

Which acetone and chloroform are mixed, hydrogen bonding takes place between them. Such a liquid pair will cause

A.
no deviation from the Raoult's law
B.
negative deviation from the Raoult's law
C.
positive deviation from the Raoult's law
D.
none of these

Solution:

QUESTION: 33

In a flask of volume V litres, 0.2 mol of oxygen, 0.4 mol of nitrogen, 0.1 mole of NH₃ and 0.3 mol of He are enclosed at 27°C. If the total pressure exerted by these non reacting gases is one atmosphere, the partial pressure exerted by nitrogen is