1
JEE Main 2019 (Online) 8th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Diborane (B2H6) reacts with O2 and H2O independently, then products formed are :
A
B2O3 and HBO2
B
B2O3 and H3BO3
C
HBO2 and H3BO3
D
HBO2 and HBO3
2
JEE Main 2019 (Online) 12th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
The element that does NOT show catenation is :
A
Ge
B
Si
C
Sn
D
Pb
3
JEE Main 2019 (Online) 12th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
The element that shows greater ability to form p$$\pi $$-p$$\pi $$ multiple bonds, is :
A
Si
B
Ge
C
C
D
Sn
4
JEE Main 2019 (Online) 12th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Chlorine on reaction with hot and concentrated sodium hydroxide give :
A
C$$\ell $$O$$_3^ - $$ and C$$\ell $$O$$_2^ - $$
B
C$$\ell $$$$-$$ and C$$\ell $$O$$-$$
C
C$$\ell $$$$-$$ and C$$\ell $$O$$_2^ - $$
D
C$$\ell $$$$-$$ and C$$\ell $$O$$_3^ - $$
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CBSE
Class 12