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1
JEE Main 2020 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The de Broglie wavelength of an electron in the 4th Bohr orbit is :
A
2$$\pi $$a0
B
6$$\pi $$a0
C
8$$\pi $$a0
D
4$$\pi $$a0
2
JEE Main 2020 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The major product (Y) in the following reactions is : JEE Main 2020 (Online) 9th January Morning Slot Chemistry - Hydrocarbons Question 121 English
A
JEE Main 2020 (Online) 9th January Morning Slot Chemistry - Hydrocarbons Question 121 English Option 1
B
JEE Main 2020 (Online) 9th January Morning Slot Chemistry - Hydrocarbons Question 121 English Option 2
C
JEE Main 2020 (Online) 9th January Morning Slot Chemistry - Hydrocarbons Question 121 English Option 3
D
JEE Main 2020 (Online) 9th January Morning Slot Chemistry - Hydrocarbons Question 121 English Option 4
3
JEE Main 2020 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Complex X of composition Cr(H2O)6Cln has a spin only magnetic moment of 3.83 BM. It reacts with AgNO3 and shows geometrical isomerism. The IUPAC nomenclature of X is :
A
Hexaaqua chromium (III) chloride
B
Tetraaquadichlorido chromium(IV) chloride dihydrate
C
Tetraaquadichlorido chromium (III) chloride dihydrate
D
Dichloridotetraaqua chromium (IV) chloride dihydrate
4
JEE Main 2020 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The compound that cannot act both as oxidising and reducing agent is :
A
H3PO4
B
H2SO3
C
H2O2
D
HNO2

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