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IIT JEE 2006 Paper : CHEMISTRY Section III - Comprehension Passage 2
Each comprehension passage contains 3 questions. Each question below has only one correct answer.
In the IIT-JEE, you will be awarded 5 marks for each correct answer and
−2 for each incorrect answer. You will be awarded 0 marks for not
attempting a question.
Tollens' reagent is used for the detection of aldehydes. When glucose and NH4OH are added to a solution of AgNO3 gluconic acid is formed. Use the following data to answer the questions. Ag + + e − → Ag , E1° = 0.80 V;
C6H12O6 + H2O → C6H12O7 + 2H + + 2e − , E2° = − 0.05 V;
[Ag(NH3)2] + + e − → Ag(s) + 2NH3 , E3° = 0.373 V 2.303RT / F = 0.0591.
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