1
IIT-JEE 1995
Subjective
+4
-0
An excess of liquid mercury is added to an acidified solution of 1.0 $$\times$$ 10-3 M Fe3+. It is found that 5% of Fe3+ remains at equilibrium at 25oC. Calculate $$E_{Hg_2^{2 + }|\,Hg}^o$$, assuming that only reaction that occurs is
2Hg + 2Fe3+ $$\to$$ $$Hg_2^{2+}$$ + 2Fe2+
(Given $$E_{F{e^{3 + }}|\,F{e^{2 + }}}^o$$ = 0.77 V)
2Hg + 2Fe3+ $$\to$$ $$Hg_2^{2+}$$ + 2Fe2+
(Given $$E_{F{e^{3 + }}|\,F{e^{2 + }}}^o$$ = 0.77 V)
2
IIT-JEE 1995
Subjective
+4
-0
At 380oC, the half-life period for the first order decomposition of H2O2 is 360 min. Calculate the time required for 75% decomposition at 450oC.
3
IIT-JEE 1995
MCQ (Single Correct Answer)
+2
-0.5
The minimum value of the expression $$\sin \,\alpha + \sin \,\beta \, + \sin \,\gamma ,\,$$ where $$\alpha ,\,\beta ,\,\gamma $$ are real numbers satisfying $$\alpha + \beta + \gamma = \pi $$ is
4
IIT-JEE 1995
Subjective
+5
-0
If $$i{z^3} + {z^2} - z + i = 0$$ , then show that $$\left| z \right| = 1$$.
Paper analysis
Total Questions
Chemistry
4
Mathematics
13
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