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QAIPMT-2009-Ch-2111: NEET 2009 Chemistry - Class 12 AIPMT-2009-Ch-2111 Solution: A 0.0020 m aqueous solution of an ionic compound…
A 0.0020 m aqueous solution of an ionic compound freezes at . Number of moles of ions which 1 mol of ionic compound produces on being dissolved in water will be () 3 4 1 2
Multiple Choice Options
- A 0.90 V
- B 0.30 V
- C 0.38 V
- D 0.52 V
Step-by-Step Verified Solution
For the reaction,
Cu 2+ + 2e _ _ Cu, E o = 0.337 V
_ G o = - nFE o
= � 2 _ F _ 0.337
= � 0.674 F ......(i)
For the reaction,
Cu 2+ + e _ _ Cu + , E o = 0.153 V
_ G o = - nFE o
= � 1 _ F _ � 0.153
= 0.153 F
On adding eqn (i) & (ii)
Cu 2+ + e _ _ Cu +
_ G o = �0.521 F = �nFE�
_ E� = 0.52 V