1
JEE Main 2020 (Online) 9th January Morning Slot
Numerical
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-0
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The hardness of a water sample containing 10–3 M MgSO4 expressed as CaCO3 equivalents (in ppm) is ______.
(molar mass of MgSO4 is 120.37 g/mol)
Your input ____
2
JEE Main 2020 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
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-1
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The major product (Y) in the following reactions is : JEE Main 2020 (Online) 9th January Morning Slot Chemistry - Hydrocarbons Question 101 English
A
JEE Main 2020 (Online) 9th January Morning Slot Chemistry - Hydrocarbons Question 101 English Option 1
B
JEE Main 2020 (Online) 9th January Morning Slot Chemistry - Hydrocarbons Question 101 English Option 2
C
JEE Main 2020 (Online) 9th January Morning Slot Chemistry - Hydrocarbons Question 101 English Option 3
D
JEE Main 2020 (Online) 9th January Morning Slot Chemistry - Hydrocarbons Question 101 English Option 4
3
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
4
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
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