1.
Presence of sulphide ion cannot be confirmed by:
2.
End product of the hydrolysis of 
3.
In ion, the formal charge on each oxygen atom and P-O bond order respectively are:
4.
The lightest, non-inflammable gas is:
5.
Which of the following chloride is water insoluble?
6.
Which radical can bring about the highest oxidation state of a transition metal?
7.
Excess of  reacts with conc.  giving
8.
displaces HCl from sodium chloride because:
9.
Which of the following halogens can replace others form their salt solutions?
10.