1
IIT-JEE 1995
Subjective
+2
-0
A 5.0 cm3 solution of H2O2 liberates 0.508 g of iodine from an acidified KI solution. Calculate the strength of H2O2 solution in terms of volume strength at STP.
2
IIT-JEE 1994
Subjective
+1
-0
Complete and balance the following reactions:
Ca5(PO4)3F + H2SO4 + H2O $$\buildrel {Heat} \over \longrightarrow $$ ........ + 5CaSO4.2H2O + ........
3
IIT-JEE 1993
Subjective
+3
-0
Give briefly the isolation of magnesium from sea water by the Dow process. Give equations for the steps involved.
4
IIT-JEE 1992
Subjective
+1
-0
Give reasons of the following:
Hydrogen peroxide acts as an oxidising as well as a reducing agent.
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