1
JEE Advanced 2015 Paper 1 Offline
Numerical
+3
-1
The number of lone pairs of electrons in N2O3 is ___________.
Your input ____
2
IIT-JEE 2011 Paper 2 Offline
Numerical
+3
-0
Among the following, the number of compounds that can react with PCl5 to given POCl3 is _____________.
O2, CO2, SO2, H2O, H2SO4, P4O10
Your input ____
3
IIT-JEE 2010 Paper 1 Offline
Numerical
+3
-0
The value of $$n$$ in the molecular formula $$\mathrm{Be_n Al_2Si_6O_{18}}$$ is ___________.
Your input ____
4
IIT-JEE 2010 Paper 2 Offline
Numerical
+2
-0
The total number of diprotic acids among the following is:
H3PO4, H2SO4, H3PO3, H2CO3, H2S2O7, H3BO3, H3PO2, H2CrO4 and H2SO3
Your input ____
Questions Asked from p-Block Elements (Numerical)
Number in Brackets after Paper Indicates No. of Questions
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