1
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
2
JEE Main 2019 (Online) 10th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
The pair that contains two P – H bonds in each of the oxoacids is
A
H3PO2 and H4P2O5
B
H4P2O5 and H4P2O6
C
H4P2O5 and H3PO3
D
H3PO3 and H3PO2
3
JEE Main 2019 (Online) 10th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
The number of 2-centre-2-electron and 3-centre -2-electron bonds in B2H6, respectively, are :
A
2 and 2
B
2 and 1
C
2 and 4
D
4 and 2
4
JEE Main 2019 (Online) 10th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Two pi and half sigma bonds are present in :
A
O2
B
N$$_2^ + $$
C
O$$_2^ + $$
D
N2
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