1
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
2
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
3
JEE Main 2020 (Online) 5th September Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The major product of the following reaction is : JEE Main 2020 (Online) 5th September Evening Slot Chemistry - Alcohols, Phenols and Ethers Question 127 English
A
JEE Main 2020 (Online) 5th September Evening Slot Chemistry - Alcohols, Phenols and Ethers Question 127 English Option 1
B
JEE Main 2020 (Online) 5th September Evening Slot Chemistry - Alcohols, Phenols and Ethers Question 127 English Option 2
C
JEE Main 2020 (Online) 5th September Evening Slot Chemistry - Alcohols, Phenols and Ethers Question 127 English Option 3
D
JEE Main 2020 (Online) 5th September Evening Slot Chemistry - Alcohols, Phenols and Ethers Question 127 English Option 4
4
JEE Main 2020 (Online) 5th September Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The variation of molar conductivity with concentration of an electrolyte (X) in aqueous solution is shown in the given figure. JEE Main 2020 (Online) 5th September Evening Slot Chemistry - Electrochemistry Question 150 English
The electrolyte X is :
A
HCl
B
CH3COOH
C
NaCl
D
KNO3

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