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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.
Solutions of JEE Main Chemistry Test- 12 questions in English are available as part of our Mock Tests for JEE Main and Advanced 2025 for JEE & JEE Main Chemistry Test- 12 solutions in Hindi for Mock Tests for JEE Main and Advanced 2025 course. Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free. Attempt JEE Main Chemistry Test- 12 | 30 questions in 60 minutes | Mock test for JEE preparation | Free important questions MCQ to study Mock Tests for JEE Main and Advanced 2025 for JEE Exam | Download free PDF with solutions
JEE Main Chemistry Test- 12 - Question 1
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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
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Which of the following has the highest mass ?

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JEE Main Chemistry Test- 12 - Question 3
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How many moles of electrons wieght one kilogram ?

JEE Main Chemistry Test- 12 - Question 4
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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
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Normality of 1% solution is nearly
JEE Main Chemistry Test- 12 - Question 6
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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
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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
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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
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The number of nodal planes in a orbital is
JEE Main Chemistry Test- 12 - Question 10
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The ratio of time periods in first and second orbits of hydrogen atom is
JEE Main Chemistry Test- 12 - Question 11
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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
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The e/m for positive rays in comparison to cathod rays is
JEE Main Chemistry Test- 12 - Question 13
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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
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The law of triads is applicable to
JEE Main Chemistry Test- 12 - Question 15
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Mendellev’s periodic table is upset by the fact that
JEE Main Chemistry Test- 12 - Question 16
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Name the two elements that are liquid at ordinary temperature
JEE Main Chemistry Test- 12 - Question 17
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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
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Arrange the elements with the following electronic configurations in increasing order of electron affinity     
               

JEE Main Chemistry Test- 12 - Question 19
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The IUPAC name of the compound
JEE Main Chemistry Test- 12 - Question 20
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The IUPAC name of the compound
JEE Main Chemistry Test- 12 - Question 21
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The IUPAC name of the compound is
JEE Main Chemistry Test- 12 - Question 22
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Which of the following shows tautomerism ?
JEE Main Chemistry Test- 12 - Question 23
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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
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Which among the following is likely to show geometrical isomerism?
JEE Main Chemistry Test- 12 - Question 25
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Which one of the following is the stablest structure of cyclohexatriene ?
JEE Main Chemistry Test- 12 - Question 26
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meso-Tartaric acid is optically inactive due to the presence of
JEE Main Chemistry Test- 12 - Question 27
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The absolute cofiguration of the following compound is
JEE Main Chemistry Test- 12 - Question 28
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The strucutre of is
JEE Main Chemistry Test- 12 - Question 29
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The most stable carbonation among the following is
JEE Main Chemistry Test- 12 - Question 30
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