1
IIT-JEE 1998
Subjective
+4
-0
Hydrogen peroxide acts both as an oxidising and as a reducing agent in alkaline solution towards certain first row transition metal ions. Illustrate both these properties of H2O2 using chemical equations.
2
IIT-JEE 1997
Subjective
+2
-0
Give reasons of the following:
The crystalline salts of alkaline earth metals contain more water of crystallisation than the corresponding alkali metal salts.
The crystalline salts of alkaline earth metals contain more water of crystallisation than the corresponding alkali metal salts.
3
IIT-JEE 1997
Subjective
+5
-0
To a 25ml H2O2 solution, excess of acidified solution of potassium iodide was added. The iodine liberated required 20 ml of 0.3 N sodium thiosulphate solution. Calculate the volume strength of H2O2 solution.
4
IIT-JEE 1997
Subjective
+3
-0
Element A burns in nitrogen to give an ionic compound B. Compound B reacts with water to give C and D. A solution of C becomes 'milky' on bubbling carbon dioxide. Identify A, B, C and D.
Questions Asked from s-Block Elements (Subjective)
Number in Brackets after Paper Indicates No. of Questions
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