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JEE Main Chemistry Mock Test- 7 - JEE MCQ


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25 Questions MCQ Test Mock Tests for JEE Main and Advanced 2024 - JEE Main Chemistry Mock Test- 7

JEE Main Chemistry Mock Test- 7 for JEE 2024 is part of Mock Tests for JEE Main and Advanced 2024 preparation. The JEE Main Chemistry Mock Test- 7 questions and answers have been prepared according to the JEE exam syllabus.The JEE Main Chemistry Mock Test- 7 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- 7 below.
Solutions of JEE Main Chemistry Mock Test- 7 questions in English are available as part of our Mock Tests for JEE Main and Advanced 2024 for JEE & JEE Main Chemistry Mock Test- 7 solutions in Hindi for Mock Tests for JEE Main and Advanced 2024 course. Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free. Attempt JEE Main Chemistry Mock Test- 7 | 25 questions in 60 minutes | Mock test for JEE preparation | Free important questions MCQ to study Mock Tests for JEE Main and Advanced 2024 for JEE Exam | Download free PDF with solutions
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JEE Main Chemistry Mock Test- 7 - Question 1

Primary and secondary alcohols on action of red hot copper give

JEE Main Chemistry Mock Test- 7 - Question 2

Which of the following is hypnotic ?

Detailed Solution for JEE Main Chemistry Mock Test- 7 - Question 2
Solution :
Hypnotic or soporific drugs, commonly known as sleeping pills, are a class of psychoactive drugs whose primary function is to induce sleep and to be used in the treatment of insomnia, or surgical anesthesia.
JEE Main Chemistry Mock Test- 7 - Question 3

Enzymes are made up of

JEE Main Chemistry Mock Test- 7 - Question 4
The order of decrease in atomic radii for Be, Na and Mg is
Detailed Solution for JEE Main Chemistry Mock Test- 7 - Question 4
As we move from left to right in a period, nuclear charge increases while the number of the shells remains the same. Due to this, the valence electrons are pulled little closer to the nucleus and this results in a decrease of the atomic radius. For example, when we move from Li to Be, atomic size decreases. On the other hand, the atomic radii of elements increase with increase in atomic numbers as we move from top to bottom in a group.This is due to the addition of new energy shells in each succeeding element. Thus, as we move from Li to Na, atomic radius increases and when go from Na to Mg, atomic radius decreases but not as much as in case of Be.
JEE Main Chemistry Mock Test- 7 - Question 5

Which of the following gives blood red colour with KCNS ?

Detailed Solution for JEE Main Chemistry Mock Test- 7 - Question 5
[B]
Fe+3 give blood red cloour with KCNS.
[Fe(CNS)2]+
x − 2 =  + 1
x = + 3
JEE Main Chemistry Mock Test- 7 - Question 6
The rate at which a substance reacts depends on its
JEE Main Chemistry Mock Test- 7 - Question 7

Given that
(i) C + O₂ → CO₂ ; ∆Ho = − xkJ,
(ii) 2CO + O₂ → 2CO₂ ; ∆Ho = −ykJ .
The enthalpy of formation of carbon monoxide will be

JEE Main Chemistry Mock Test- 7 - Question 8
[Co(NH₃)₄(NO₂)₂]Cl exhibits
JEE Main Chemistry Mock Test- 7 - Question 9
Strong electrolytes are those which
JEE Main Chemistry Mock Test- 7 - Question 10
Which of the following reagent can be used to convert benzene diazonium chloride into benzene ?
JEE Main Chemistry Mock Test- 7 - Question 11

In the electrochemical cell Pt, H(g) 1 atm ∕ H+(I M) ∕ Cu2+ (I M) ∕ Cu(s) . Which one of the following statements is true?

JEE Main Chemistry Mock Test- 7 - Question 12

pH of the solution at 250C is 2. If the pH is to be doubled then the hydronium ion concentration of the solution should be

JEE Main Chemistry Mock Test- 7 - Question 13
The pH of 10 M HCl aqueous solution is
JEE Main Chemistry Mock Test- 7 - Question 14

Given that Ka for acetic acid as 1.8x10⁻5 and Kb of NH₄OH as 1.8x10⁻5 at 25oC,predict the nature of aqueous solution of ammonium acetate

JEE Main Chemistry Mock Test- 7 - Question 15
Highest pH (14) is shown by
JEE Main Chemistry Mock Test- 7 - Question 16
Which of the following compound does not react with metallic sodium?
Detailed Solution for JEE Main Chemistry Mock Test- 7 - Question 16
 (B) is methyl ether, presumably water free, and unreactive under normal conditions. Of course, at room temperature, it will be a gas. 
JEE Main Chemistry Mock Test- 7 - Question 17
Ethane is obtained from ethylene by which of the following methods?
JEE Main Chemistry Mock Test- 7 - Question 18
Which of the following polymer is formed when caprolactum is heated with the traces of water?
JEE Main Chemistry Mock Test- 7 - Question 19
Which of the following is an example of body centred cube?
JEE Main Chemistry Mock Test- 7 - Question 20
Which of the following metal oxides is antiferromagnetic in nature?
*Answer can only contain numeric values
JEE Main Chemistry Mock Test- 7 - Question 21

One mole ideal monoatomic gas is heated in two different processes according to path AB and AC. If temperature of state B and state C are equal. Calculate qAC/qAB


Detailed Solution for JEE Main Chemistry Mock Test- 7 - Question 21

*Answer can only contain numeric values
JEE Main Chemistry Mock Test- 7 - Question 22

What is the molecular weight of the final product in the following reaction sequence


*Answer can only contain numeric values
JEE Main Chemistry Mock Test- 7 - Question 23

An ionic compound (A+B) crystallizes in rock salt structure. If the ionic radii of A+ and B is 200 pm and 400 pm respectively, then calculate distance between nearest anions in Å. 


*Answer can only contain numeric values
JEE Main Chemistry Mock Test- 7 - Question 24

6.84 gm Al2(SO4)3 is needed to coagulate 2.5 L of As2S3 sol completely in 2.0 hrs. The coagulation value of Al2(SO4)3 in terms of millimoles per litre is : 
[Atomic mass : Al = 27, S = 32].


*Answer can only contain numeric values
JEE Main Chemistry Mock Test- 7 - Question 25

The sum of Number of unpaired electrons in
[COCl6]–3, [Cr(NH3)6]+3 , [Zn(NH3)4]+2 →


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