1
JEE Main 2020 (Online) 5th September Evening Slot
Numerical
+4
-0
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The volume, in mL, of 0.02 M K2Cr2O7 solution required to react with 0.288 g of ferrous oxalate in acidic medium is _______.
(Molar mass of Fe = 56 g mol–1)
Your input ____
2
JEE Main 2020 (Online) 5th September Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The final major product of the following reaction is : JEE Main 2020 (Online) 5th September Evening Slot Chemistry - Compounds Containing Nitrogen Question 190 English
A
JEE Main 2020 (Online) 5th September Evening Slot Chemistry - Compounds Containing Nitrogen Question 190 English Option 1
B
JEE Main 2020 (Online) 5th September Evening Slot Chemistry - Compounds Containing Nitrogen Question 190 English Option 2
C
JEE Main 2020 (Online) 5th September Evening Slot Chemistry - Compounds Containing Nitrogen Question 190 English Option 3
D
JEE Main 2020 (Online) 5th September Evening Slot Chemistry - Compounds Containing Nitrogen Question 190 English Option 4
3
JEE Main 2020 (Online) 5th September Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Boron and silicon of very high purity can be obtained through :
A
Liquation
B
Electrolytic refining
C
Zone refining
D
Vapour phase refining
4
JEE Main 2020 (Online) 5th September Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct statement about probability density (except at infinite distance from nucleus) is :
A
It can be zero for 1s orbital
B
It can be zero for 3p orbital
C
It can never be zero for 2s orbital
D
It can negative for 2p orbital

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