1
JEE Main 2019 (Online) 9th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The one that is not a carbonate ore is :
A
siderite
B
bauxite
C
malachite
D
calamine
2
JEE Main 2019 (Online) 9th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
During compression of a spring the work done is 10kJ and 2kJ escaped to the surroundings as heat. The change in internal energy, $$\Delta $$U(inkJ) is :
A
- 12
B
8
C
- 8
D
12
3
JEE Main 2019 (Online) 9th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The amorphous form of silica is :
A
kieselguhr
B
quartz
C
tridymite
D
cristobalite
4
JEE Main 2019 (Online) 9th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The major products A and B for the following reactions are, respectively: JEE Main 2019 (Online) 9th April Evening Slot Chemistry - Compounds Containing Nitrogen Question 156 English
A
JEE Main 2019 (Online) 9th April Evening Slot Chemistry - Compounds Containing Nitrogen Question 156 English Option 1
B
JEE Main 2019 (Online) 9th April Evening Slot Chemistry - Compounds Containing Nitrogen Question 156 English Option 2
C
JEE Main 2019 (Online) 9th April Evening Slot Chemistry - Compounds Containing Nitrogen Question 156 English Option 3
D
JEE Main 2019 (Online) 9th April Evening Slot Chemistry - Compounds Containing Nitrogen Question 156 English Option 4
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