1
JEE Main 2021 (Online) 25th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one among the following resonating structures is not correct?
A
JEE Main 2021 (Online) 25th July Morning Shift Chemistry - Basics of Organic Chemistry Question 98 English Option 1
B
JEE Main 2021 (Online) 25th July Morning Shift Chemistry - Basics of Organic Chemistry Question 98 English Option 2
C
JEE Main 2021 (Online) 25th July Morning Shift Chemistry - Basics of Organic Chemistry Question 98 English Option 3
D
JEE Main 2021 (Online) 25th July Morning Shift Chemistry - Basics of Organic Chemistry Question 98 English Option 4
2
JEE Main 2021 (Online) 25th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Given below are two statements :

Statement I : None of the alkaline earth metal hydroxides dissolve in alkali.

Statement II : Solubility of alkaline earth metal hydroxides in water increases down the group.

In the light of the above statements, choose the most appropriate answer from the options given below :
A
Statement I is correct but Statement II is incorrect.
B
Statement I is incorrect but Statement II is correct.
C
Statement I and Statement II both are incorrect.
D
Statement I and Statement II both are correct.
3
JEE Main 2021 (Online) 25th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct order of following 3d metal oxides, according to their oxidation numbers is :

(a) CrO3, (b) Fe2O3, (c) MnO2, (d) V2O5, (e) Cu2O
A
(d) > (a) > (b) > (c) > (e)
B
(a) > (c) > (d) > (b) > (e)
C
(a) > (d) > (c) > (b) > (e)
D
(c) > (a) > (d) > (e) > (b)
4
JEE Main 2021 (Online) 25th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Which one of the following chemical agent is not being used for dry-cleaning of clothes?
A
H2O2
B
CCl4
C
Liquid CO2
D
Cl2C = CCl2
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