1
JEE Main 2020 (Online) 4th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The pair in which both the species have the same magnetic moment (spin only) is :
A
[Cr(H2O)6]2+ and [CoCl4]2–
B
[Co(OH)4]2– and [Fe(NH3)6]2+
C
[Mn(H2O)6]2+ and [Cr(H2O)]2+
D
[Cr(H2O)6]2+ and [Fe(H2O)6]2+
2
JEE Main 2020 (Online) 4th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
When neopentyl alcohol is heated with an acid, it slowly converted into an 85 : 15 mixture of alkenes A and B, respectively. What are these alkenes?
A
JEE Main 2020 (Online) 4th September Morning Slot Chemistry - Alcohols, Phenols and Ethers Question 130 English Option 1
B
JEE Main 2020 (Online) 4th September Morning Slot Chemistry - Alcohols, Phenols and Ethers Question 130 English Option 2
C
JEE Main 2020 (Online) 4th September Morning Slot Chemistry - Alcohols, Phenols and Ethers Question 130 English Option 3
D
JEE Main 2020 (Online) 4th September Morning Slot Chemistry - Alcohols, Phenols and Ethers Question 130 English Option 4
3
JEE Main 2020 (Online) 4th September Morning Slot
Numerical
+4
-0
Change Language
The mass of ammonia in grams produced when 2.8 kg of dinitrogen quantitatively reacts with 1 kg of dihydrogen is _______.
Your input ____
4
JEE Main 2020 (Online) 4th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The ionic radii of O2–, F, Na+ and Mg2+ are in the order :
A
F > O2– > Na+ > Mg2+
B
Mg2+ > Na+ > F > O2–
C
O2– > F > Mg2+ > Na+
D
O2– > F > Na+ > Mg2+

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