1
JEE Main 2021 (Online) 25th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The ionic radii of K+, Na+, Al3+ and Mg2+ are in the order:
A
Na+ < K+ < Mg2+ < Al3+
B
Al3+ < Mg2+ < K+ < Na+
C
Al3+ < Mg2+ < Na+ < K+
D
K+ < Al3+ < Mg2+ < Na+
2
JEE Main 2021 (Online) 25th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one of the following compounds of Group-14 elements is not known?
A
[GeCl6]2$$-$$
B
[Sn(OH)6]2$$-$$
C
[SiCl6]2$$-$$
D
[SiF6]2$$-$$
3
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 129 English Option 1
B
JEE Main 2021 (Online) 25th July Morning Shift Chemistry - Basics of Organic Chemistry Question 129 English Option 2
C
JEE Main 2021 (Online) 25th July Morning Shift Chemistry - Basics of Organic Chemistry Question 129 English Option 3
D
JEE Main 2021 (Online) 25th July Morning Shift Chemistry - Basics of Organic Chemistry Question 129 English Option 4
4
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.
JEE Main Papers
2023
2021
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
CBSE
Class 12