1
JEE Main 2020 (Online) 8th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The third ionization enthalpy is minimum for :
A
Ni
B
Co
C
Mn
D
Fe
2
JEE Main 2020 (Online) 8th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
When gypsum is heated to 393 K, it forms :
A
CaSO4 . 0.5H2O
B
CaSO4 . 5H2O
C
Dead burnt plaster
D
Anhydrous CaSO4
3
JEE Main 2020 (Online) 8th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The major products A and B in the following reactions are :

JEE Main 2020 (Online) 8th January Morning Slot Chemistry - Compounds Containing Nitrogen Question 148 English
A
JEE Main 2020 (Online) 8th January Morning Slot Chemistry - Compounds Containing Nitrogen Question 148 English Option 1
B
JEE Main 2020 (Online) 8th January Morning Slot Chemistry - Compounds Containing Nitrogen Question 148 English Option 2
C
JEE Main 2020 (Online) 8th January Morning Slot Chemistry - Compounds Containing Nitrogen Question 148 English Option 3
D
JEE Main 2020 (Online) 8th January Morning Slot Chemistry - Compounds Containing Nitrogen Question 148 English Option 4
4
JEE Main 2020 (Online) 8th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The most suitable reagent for the given conversion is : JEE Main 2020 (Online) 8th January Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 150 English
A
LiAlH4
B
B2H6
C
NaBH4
D
H2/Pd
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