1
IIT-JEE 1994
Subjective
+1
-0
Complete and balance the following reactions:
Ca5(PO4)3F + H2SO4 + H2O $$\buildrel {Heat} \over \longrightarrow $$ ........ + 5CaSO4.2H2O + ........
Ca5(PO4)3F + H2SO4 + H2O $$\buildrel {Heat} \over \longrightarrow $$ ........ + 5CaSO4.2H2O + ........
2
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.
3
IIT-JEE 1992
Subjective
+1
-0
Give reasons of the following:
Hydrogen peroxide acts as an oxidising as well as a reducing agent.
Hydrogen peroxide acts as an oxidising as well as a reducing agent.
4
IIT-JEE 1991
Subjective
+1
-0
Write down the balanced equation for the reaction when:
Carbon dioxide is passed through a suspension of lime stone in water.
Carbon dioxide is passed through a suspension of lime stone in water.
Questions Asked from s-Block Elements (Subjective)
Number in Brackets after Paper Indicates No. of Questions
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