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JEE Main Chemistry Mock


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25 Questions MCQ Test JEE Main & Advanced Mock Test Series | JEE Main Chemistry Mock

JEE Main Chemistry Mock for JEE 2023 is part of JEE Main & Advanced Mock Test Series preparation. The JEE Main Chemistry Mock questions and answers have been prepared according to the JEE exam syllabus.The JEE Main Chemistry Mock MCQs are made for JEE 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for JEE Main Chemistry Mock below.
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JEE Main Chemistry Mock - Question 1

Proof spirit contains about

JEE Main Chemistry Mock - Question 2

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

JEE Main Chemistry Mock - Question 3

Identify the correct statement regarding enzymes.

JEE Main Chemistry Mock - Question 4
The facor which changes equilibrium constant of the reaction A₂(g) + B₂(g) → 2AB(g) is
JEE Main Chemistry Mock - Question 5
The ligand : NO is named as
JEE Main Chemistry Mock - Question 6

Which one of the following reactions occur at the cathode?

JEE Main Chemistry Mock - Question 7
The order of a reaction depends upon
JEE Main Chemistry Mock - Question 8
The first ionisation potential of Li will be
Detailed Solution for JEE Main Chemistry Mock - Question 8 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.
JEE Main Chemistry Mock - Question 9
Which of the following reactions actually take place?
JEE Main Chemistry Mock - Question 10

When benzenediazonium chloride in hydrochloric acid reacts with cuprous chloride, then chlorobenzene is formed. The reaction is called

JEE Main Chemistry Mock - Question 11
Which of the following is a non-electrolyte?
JEE Main Chemistry Mock - 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?
JEE Main Chemistry Mock - 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

JEE Main Chemistry Mock - Question 14
Phenolphthalein does not act as an indicator for the titration between
JEE Main Chemistry Mock - Question 15
If H₂S is passed in ZnSO₄ containing HCl,Zinc sulphide is not precipitated because Ksp of
JEE Main Chemistry Mock - Question 16
The reagent used to convert Ethanoic acid to Ethanol is
JEE Main Chemistry Mock - Question 17

Conc. HNO3  forms NO2+  in presence of :

JEE Main Chemistry Mock - Question 18
On mixing a certain alkane with chlorine and irradiating it with ultraviolet light,it forms only one monochloroalkane .This alkane could be
JEE Main Chemistry Mock - Question 19
The solid NaCl is a bad conductor of electricity since
JEE Main Chemistry Mock - 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)

Detailed Solution for JEE Main Chemistry Mock - Question 20

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

*Answer can only contain numeric values
JEE Main Chemistry Mock - Question 21

How many alcohols give immediate turbidity on heating with Lucas Reagent?


*Answer can only contain numeric values
JEE Main Chemistry Mock - Question 22

If total number of chiral centre in α-D-Glucopyranose is 'P' and sucrose is 'Q' then what would be value of (P × Q)?


*Answer can only contain numeric values
JEE Main Chemistry Mock - Question 23

At 25° C, the solubility product of Mg(OH)2 is 1.0 × 10–11. At which pH, will Mg2+ ions start precipitating in the form of Mg(OH)2 from a solution of 0.001 M Mg2+ ions ?


*Answer can only contain numeric values
JEE Main Chemistry Mock - Question 24

Successive ionisation potential of an element are 7.6 ev, 12.9 ev, 27 ev, and 92.5 ev, then find number of electrons in the valence shell of the element.


*Answer can only contain numeric values
JEE Main Chemistry Mock - Question 25

What volume in ml of 5 M H2SO4 should be added to 150 ml of 1 M H2SO4 to obtain a solution of molarity = 2.5 M, if upon mixing volume of solution decreases by 10% ?


Detailed Solution for JEE Main Chemistry Mock - Question 25

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