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JEE Main Chemistry Mock Test- 9 - JEE MCQ


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25 Questions MCQ Test - JEE Main Chemistry Mock Test- 9

JEE Main Chemistry Mock Test- 9 for JEE 2024 is part of JEE preparation. The JEE Main Chemistry Mock Test- 9 questions and answers have been prepared according to the JEE exam syllabus.The JEE Main Chemistry Mock Test- 9 MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for JEE Main Chemistry Mock Test- 9 below.
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JEE Main Chemistry Mock Test- 9 - Question 1

Proof spirit contains about

JEE Main Chemistry Mock Test- 9 - Question 2

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

JEE Main Chemistry Mock Test- 9 - Question 3

Identify the correct statement regarding enzymes.

Detailed Solution for JEE Main Chemistry Mock Test- 9 - Question 3

Enzymes have a three-dimensional substrate binding site that binds to the complementary three-dimensional substrate molecule, they are unique in their action. As a result, the enzymes are site-specific in their binding and action.

JEE Main Chemistry Mock Test- 9 - Question 4
The facor which changes equilibrium constant of the reaction A₂(g) + B₂(g) → 2AB(g) is
JEE Main Chemistry Mock Test- 9 - Question 5
The ligand : NO is named as
JEE Main Chemistry Mock Test- 9 - Question 6

Which one of the following reactions occur at the cathode?

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

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

JEE Main Chemistry Mock Test- 9 - Question 11
Which of the following is a non-electrolyte?
JEE Main Chemistry Mock Test- 9 - 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 Test- 9 - 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 Test- 9 - Question 14
Phenolphthalein does not act as an indicator for the titration between
JEE Main Chemistry Mock Test- 9 - Question 15
If H₂S is passed in ZnSO₄ containing HCl,Zinc sulphide is not precipitated because Ksp of
JEE Main Chemistry Mock Test- 9 - Question 16
The reagent used to convert Ethanoic acid to Ethanol is
JEE Main Chemistry Mock Test- 9 - Question 17

Conc. HNO3  forms NO2+  in presence of :

JEE Main Chemistry Mock Test- 9 - 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 Test- 9 - Question 19
The solid NaCl is a bad conductor of electricity since
JEE Main Chemistry Mock Test- 9 - 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 Test- 9 - 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 Test- 9 - Question 21

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


*Answer can only contain numeric values
JEE Main Chemistry Mock Test- 9 - 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 Test- 9 - 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 Test- 9 - 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 Test- 9 - 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 Test- 9 - Question 25

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