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JEE(MAIN) Chemistry Mock Test


30 Questions MCQ Test JEE Main Mock Test Series 2021 & Previous Year Papers | JEE(MAIN) Chemistry Mock Test


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This mock test of JEE(MAIN) Chemistry Mock Test for JEE helps you for every JEE entrance exam. This contains 30 Multiple Choice Questions for JEE JEE(MAIN) Chemistry Mock Test (mcq) to study with solutions a complete question bank. The solved questions answers in this JEE(MAIN) Chemistry Mock Test quiz give you a good mix of easy questions and tough questions. JEE students definitely take this JEE(MAIN) Chemistry Mock Test exercise for a better result in the exam. You can find other JEE(MAIN) Chemistry Mock Test extra questions, long questions & short questions for JEE on EduRev as well by searching above.
QUESTION: 1

Proof spirit contains about

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QUESTION: 2

The reaction of acetaldehyde with HCN followed by hydrolysis gives a product which exhibits

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QUESTION: 3

Identify the correct statement regarding enzymes.

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QUESTION: 4
The facor which changes equilibrium constant of the reaction A₂(g) + B₂(g) → 2AB(g) is
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QUESTION: 5
The ligand : NO is named as
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QUESTION: 6

Which one of the following reactions occur at the cathode?
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QUESTION: 7
The order of a reaction depends upon
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QUESTION: 8
The first ionisation potential of Li will be
Solution: As we move from left to right in a period, the ionisation potential increases with increasing atomic number and the ionisation potential keeps on decreasing regularly as we move down a group. Thus the first ionisation potential of Li is less than Be and higher than Na.
QUESTION: 9
Which of the following reactions actually take place?
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QUESTION: 10

When benzenediazonium chloride in hydrochloric acid reacts with cuprous chloride, then chlorobenzene is formed. The reaction is called
Solution:
QUESTION: 11
Which of the following is a non-electrolyte?
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QUESTION: 12
In decinormal solution, CH₃COOH acid is ionised to the extent of 1.3%. If log 1.3=0.11. What is the pH of the solution?
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QUESTION: 13

The Δ H value for the reaction H2 + Cl2  → 2 HCl is − 44.12 K.cal. If E1 is the activation energy of the reactants and E2 is the activation energy of the products, then for the above reaction
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QUESTION: 14
Phenolphthalein does not act as an indicator for the titration between
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QUESTION: 15
If H₂S is passed in ZnSO₄ containing HCl,Zinc sulphide is not precipitated because Ksp of
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QUESTION: 16
The reagent used to convert Ethanoic acid to Ethanol is
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QUESTION: 17

Conc. HNO3  forms NO2+  in presence of :
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QUESTION: 18
On mixing a certain alkane with chlorine and irradiating it with ultraviolet light,it forms only one monochloroalkane .This alkane could be
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QUESTION: 19
The solid NaCl is a bad conductor of electricity since
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QUESTION: 20

How many unit cells are present in a cube-shaped ideal crystal of NaCl of mass 1.0 g?(Atomic weights of Na = 23 and Cl = 35.5)
Solution:

Gram formula mass of NaCl = (23 + 35.5)g = 58.5g
Number of formula units of NaCl in 1.0g of NaCl = 6.02 x 1023/58.5 x1.0
There are four formula units per unit cell in NaCl
∴ Number of unit cells = 6.02 x 10 23 x1.0/58.5 x4 = 2.57 x 1021

QUESTION: 21
Bakelite is a product of the reaction between
Solution: Bakelite is the product of a reaction between phenol (C6H6O) and formaldehyde (CH2O)(IUPAC name methanal). The repeated unit of bakelite is ...-CH2-C6H3(OH)-. It turns out that each formaldehyde can react with two phenols, but each phenol can react with three formaldehydes. The result is a large, three dimensional network of polymer chains of essentially infinite molecular weight.
QUESTION: 22

The vapour pressure of water at 300 K in a closed container is 0.4 atm. If the volume of the container is doubled, its vapour pressure at 300 K will be
Solution:

Vapour pressure will be the same because it doesn't depend on the volume it depends only on Temperature.

QUESTION: 23
Which one of the following heptanols can be dehydrated to hept-3-ene only?
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QUESTION: 24
Saturated solution of NaCl on heating becomes
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QUESTION: 25

The radius of which of the following orbit is same as that of the Bohr's first orbit of hydrogen atom?
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QUESTION: 26

If the speed of electron in the Bohrs's first orbit of hydrogen atom is x, the speed of electron in the third Bohr's orbit is ____
Solution:

According to Bohr's model for hydrogen and hydrogen like atoms the velocity of an electron in an atom is quantised and is given by v ∝ 2πZe2/nh

QUESTION: 27

Variation of heat of reaction with temperature is known as
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QUESTION: 28

The crystal field splitting energy for octahedral and tetrahedral (Δt) complexes is related as__
Solution:

In an octahedral complex there is a ligand along each axis while in terahedral complex no ligand lies directly along any axis,therefore, Δt is less than Δ0.

QUESTION: 29

Photochemistry is the science of the chemical effects of__
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QUESTION: 30

The empirical formula of an acid is CH₂O₂, the probable molecular formula of the simplest acid may be
Solution:

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