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JEE Main Chemistry Test- 12 - JEE MCQ


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30 Questions MCQ Test Mock Tests for JEE Main and Advanced 2025 - JEE Main Chemistry Test- 12

JEE Main Chemistry Test- 12 for JEE 2024 is part of Mock Tests for JEE Main and Advanced 2025 preparation. The JEE Main Chemistry Test- 12 questions and answers have been prepared according to the JEE exam syllabus.The JEE Main Chemistry Test- 12 MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for JEE Main Chemistry Test- 12 below.
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JEE Main Chemistry Test- 12 - Question 1

The density of chlorine relative to air is

Detailed Solution for JEE Main Chemistry Test- 12 - Question 1
Clhas a molecular mass of 71 g. And molecular mass of Air is 29 g .
Relative density of chlorine =( Mass of chlorine/ Volume of chlorine) / (Mass of air/ Volume of air )
Volume of any gas at STP = 22.4 l Relative density of chlorine = (71 / 22.4 ) / (29/22.4)
Relative density of chlorine = 2.44 
JEE Main Chemistry Test- 12 - Question 2

Which of the following has the highest mass ?

JEE Main Chemistry Test- 12 - Question 3

How many moles of electrons wieght one kilogram ?

JEE Main Chemistry Test- 12 - Question 4
10 mL of gaseous hydrocarbon on combustion gives 40 mL of (g) and 50 mL of (vap.).The
hydrocarbon is
JEE Main Chemistry Test- 12 - Question 5
Normality of 1% solution is nearly
JEE Main Chemistry Test- 12 - Question 6

0.7 g of is dissolved in 10 mL of water, 20mL of which required 19.8 mL of 0.1 N HCl. The value of x is

JEE Main Chemistry Test- 12 - Question 7
The energy of the second Bohr orbit of the hydrogen atom is –3.41 eV. The energy of the third Bohr orbit of the ion will be
JEE Main Chemistry Test- 12 - Question 8

The energy of an electron in the first Bohr orbit of H-atom is –13.6 eV. The possible energy values(s)
of the excited state(s) for electrons in Bohr orbits of hydrogen is (are)

JEE Main Chemistry Test- 12 - Question 9
The number of nodal planes in a orbital is
JEE Main Chemistry Test- 12 - Question 10
The ratio of time periods in first and second orbits of hydrogen atom is
JEE Main Chemistry Test- 12 - Question 11
The sub-shell that comes after f-sub-shell is called g-sub-shell. The number of g-sub orbitals in g-sub shell and the total number of orbitals in the principal orbital respectively are
JEE Main Chemistry Test- 12 - Question 12
The e/m for positive rays in comparison to cathod rays is
JEE Main Chemistry Test- 12 - Question 13

If n and l are respectively the principal and azimuthal quantum numbers, then the expression for calculating total number of electrons in any energy level is

Detailed Solution for JEE Main Chemistry Test- 12 - Question 13

If n and l are principal and azimuthal quantum numbers respectively, then the expression for calculating the total number of electrons in any energy level is 

JEE Main Chemistry Test- 12 - Question 14
The law of triads is applicable to
JEE Main Chemistry Test- 12 - Question 15
Mendellev’s periodic table is upset by the fact that
JEE Main Chemistry Test- 12 - Question 16
Name the two elements that are liquid at ordinary temperature
JEE Main Chemistry Test- 12 - Question 17
Traid-I
Traid-II Choose the species of lowers IP from traid-I and the species of highest IP from traid-II respectively
JEE Main Chemistry Test- 12 - Question 18

Arrange the elements with the following electronic configurations in increasing order of electron affinity     
               

JEE Main Chemistry Test- 12 - Question 19
The IUPAC name of the compound
JEE Main Chemistry Test- 12 - Question 20
The IUPAC name of the compound
JEE Main Chemistry Test- 12 - Question 21
The IUPAC name of the compound is
JEE Main Chemistry Test- 12 - Question 22
Which of the following shows tautomerism ?
JEE Main Chemistry Test- 12 - Question 23
Which of the following is the correct order of stability of the following four distinct conformations of nbutane?
JEE Main Chemistry Test- 12 - Question 24

Which among the following is likely to show geometrical isomerism?

JEE Main Chemistry Test- 12 - Question 25
Which one of the following is the stablest structure of cyclohexatriene ?
JEE Main Chemistry Test- 12 - Question 26
meso-Tartaric acid is optically inactive due to the presence of
JEE Main Chemistry Test- 12 - Question 27
The absolute cofiguration of the following compound is
JEE Main Chemistry Test- 12 - Question 28
The strucutre of is
JEE Main Chemistry Test- 12 - Question 29
The most stable carbonation among the following is
JEE Main Chemistry Test- 12 - Question 30

Toluene has

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