WBJEE Chemistry Test - 11


40 Questions MCQ Test WBJEE Sample Papers, Section Wise & Full Mock Tests | WBJEE Chemistry Test - 11


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This mock test of WBJEE Chemistry Test - 11 for JEE helps you for every JEE entrance exam. This contains 40 Multiple Choice Questions for JEE WBJEE Chemistry Test - 11 (mcq) to study with solutions a complete question bank. The solved questions answers in this WBJEE Chemistry Test - 11 quiz give you a good mix of easy questions and tough questions. JEE students definitely take this WBJEE Chemistry Test - 11 exercise for a better result in the exam. You can find other WBJEE Chemistry Test - 11 extra questions, long questions & short questions for JEE on EduRev as well by searching above.
QUESTION: 1

Which one of the following species is capable of functioning both as Bronsted acid and Bronsted base ?

Solution:

A Bronsted-Lowry acid is any species that is capable of donating a proton - H+
A Br insted-Lowry base is any species that is capable of accepting a proton, which requires a lone pair of electrons to bond to the H+
Water is amphoteric, which means it can act as both a Bronsted-Lowry acid and a Bronsted-Lowry base.
Strong acids and bases ionize completely in aqueous solution, while weak acids and bases ionize only partially.
The conjugate base of a Bronsted-Lowry acid is the species formed after an acid donates a proton. The conjugate acid of a Bronsted-Lowry base is the species formed after a base accepts a proton.
The two species in a conjugate acid-base pair have the same molecular formula except the acid has an extra H+ compared to the conjugate base.

QUESTION: 2

Phenol can be distinguished from ethyl alcohol by all reagents except

Solution:
QUESTION: 3

Catalyst used in Rosenmund reduction is

Solution:
QUESTION: 4
The acidic solution of salt produced a deep blue colour with starch iodide solution. The salt may be
Solution:
QUESTION: 5

In Nessler's reagent, the ion present is

Solution:
QUESTION: 6
The spectrum of He is expected to be similar to that of
Solution:
QUESTION: 7

The four bonds in methane are directed in space at an angle of

Solution:
QUESTION: 8

The percentage of s-character in the hybrid orbitals sp, sp2 and sp3 follows the pattern

Solution:
QUESTION: 9

Given that
C(s) + O₂(g) → CO₂(g); ∆H = - 395 KJ
S(s) + O₂(g) → SO₂(g); ∆H = -295 KJ
CS₂(l) + 3O₂(g) → CO₂(g) + 2SO₂(g); ∆H + -1110 KJ
The heat of formation of CS₂ is

Solution:
QUESTION: 10
The correct statement in respect to protein haemoglobin is that is
Solution:
QUESTION: 11
According to Le-Chatelier's principle, adding heat to a solid and liquid in equilibrium will cause the
Solution:
QUESTION: 12
A foreign substance, that increases the rate of reaction, is called
Solution:
QUESTION: 13

A Carnot engine, working between 500 K to 300 K has a work output of 800 J-cycle-1. What is the amount of heat energy supplied to the engine from the source per cycle?

Solution:
QUESTION: 14
The IUPAC name of the following CH₃C(CH₃)₂CH₂CH=CH₂ is
Solution:
QUESTION: 15

Which one of the following cyano complexes would exhibit the lowest value of paramagnetic behaviour?

Solution:
QUESTION: 16
Paracetamol is/are
Solution:
QUESTION: 17
The substance not likely to contain CaCO₃ is
Solution:
QUESTION: 18
Molecular weight of a gas that diffuses twice as rapidly as the gas with molecular weigh 64 is
Solution:
QUESTION: 19
Which of the following is not a Lewis acid?
Solution:
QUESTION: 20
Mark the oxide which is amphoteric in character
Solution:
QUESTION: 21
Phosphorus normally exhibits a covalency of
Solution:
QUESTION: 22
The hydride H⁻ ion is a stronger base than OH⁻ ion.Which of the following reaction will occur if sodium hydride is dissolved in water?
Solution:
QUESTION: 23
Which of the following compounds will exhibit geometrical isomerism?
Solution:
QUESTION: 24

β- particles are

Solution:
QUESTION: 25
The major product (70%-80%) of reaction between m-dinitrobenzene with (NH4)2Sx is
Solution: (NH4)2Sx reduces one - NO2 to - NH2 group
QUESTION: 26
Which of the following is plasticizer
Solution:
QUESTION: 27
WHich of the following polymer is an example of fibre?
Solution:
QUESTION: 28

How many Cl- ions are there around Na⁺ ion in NaCl crystal?

Solution:
QUESTION: 29
In haemoglobin the iron is in
Solution:
QUESTION: 30
Consider the following statements about enantiomers :
1. Isomers which are mirror images of each other are called enantiomers
2. A mixture of equal parts of enantiomers is called a racemic modification
3. Enantiomers show different properties-physical or chemical -only in a chiral medium
4. A racemic modification is converted by an optically active agent into mixture of diasteromers that can be separated.
Which of the above statements are correct ?
Solution:
QUESTION: 31

Aniline reacts with KOH and phosgene to form

Solution:
QUESTION: 32

Standard entropy of X₂,Y₂ and XY₃ are 60,40 and 50 JK-1 mol-1, respectively . For the reaction ,

, to be equilibrium, the temperature will be

Solution:
QUESTION: 33

In the above reaction X is

Solution:
QUESTION: 34

In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): The carbon-halogen bond in an aryl halide is shorter than the carbon-halogen bond in an alkyl halide.
Reason(R): A bond formed of an sp3 orbital should be shorter than the corresponding bond involving an sp2 orbital.

Solution:
QUESTION: 35

Toluic acid on reaction with Br₂ + Fe gives

Solution:
QUESTION: 36

Boron readily dissolves in

Solution:
QUESTION: 37

Which one of the following conditions will increase the voltage of the cell represented by the following equation?
Zn(s) + Cu2+ (aq) → Zn2+ (aq) + Cu (s)

Solution:
QUESTION: 38

The sum of the number of neutrons and proton in the isotope of hydrogen is :

Solution:
QUESTION: 39

Which of the following will undergo aldol condensation ?

Solution:
QUESTION: 40

Which of the following compounds will react with ethanolic KCN ?

Solution:

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