This chapter is currently out of syllabus
1
JEE Main 2019 (Online) 11th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
NaH is an example of :
A
metallic hydride
B
saline hydride
C
electron-rich hydrid
D
molecular hydride
2
JEE Main 2019 (Online) 10th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The total number of isotopes of hydrogen and number of radioactive isotopes among them, respectively, are :
A
3 and 2
B
2 and 1
C
2 and 0
D
3 and 1
3
JEE Main 2019 (Online) 10th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The chemical nature of hydrogen peroxide is :
A
Oxidising agent in acidic medium, but not in basic medium
B
Oxidising and reducing agent in both acidic and basic medium
C
Reducing agent in basic medium, but not in acidic medium
D
Oxidising and reducing agent in acidic medium, but not in basic medium.
4
JEE Main 2019 (Online) 9th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The temporary hardness of water is due to :
A
Na2SO4
B
NaCl
C
Ca(HCO3)2
D
CaCl2
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