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In a hypothetical reaction
A(aq)  2B(aq) + C(aq)    (Ist order decomposition)
'A' is optically active (dextro-rototory) while 'B' and 'C' are optically inactive but 'B' takes part in a titration reaction (fast reaction) with H202. Hence the progress of reaction can be monitored by measuring rotation of plane of plane polarised light or by measuring volume of H202 consumed in titration.
 In an experiment the optical rotation was found to be 0 = 30° at t = 20 min and 8 =15° at t= 50 min. from start of the reaction. If the progress would have been monitored by titration method, volume of H202 consumed at t = 30 min. (from start) is 30 ml then volume of H202 consumed at t = 90 min will be:
  • a)
    60 ml                             
  • b)
    45 ml                             
  • c)
    52.5 ml                         
  • d)
    90 ml
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
In a hypothetical reactionA(aq)2B(aq) + C(aq) (Ist order decompositio...
 
(B) As only A is optically active. So conc. of A at t =20min ∝ 30° 
While concentration of A at t= 50min ∝ mc 15° 
So conc. has deceased to half oils value in 30 min, so t1/2=30 min.
So volume consumed of H202 at t =30 min =t1/2 ,is according to 50% production of B at t= 90 min. production of B=87.5%(Threehalflives)
So volume consumed =
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In a hypothetical reactionA(aq)2B(aq) + C(aq) (Ist order decomposition)'A' is optically active (dextro-rototory) while 'B' and 'C' are optically inactive but 'B' takes part in a titration reaction (fast reaction) with H202. Hence the progress of reaction can be monitored by measuring rotation of plane of plane polarised light or by measuring volume of H202 consumed in titration.In an experiment the optical rotation was found to be 0 = 30° at t = 20 min and 8 =15° at t= 50 min. from start of the reaction. If the progress would have been monitored by titration method, volume of H202 consumed at t = 30 min. (from start) is 30 ml then volume of H202 consumed at t = 90 min will be:a)60 mlb)45 mlc)52.5 mld)90 mlCorrect answer is option 'B'. Can you explain this answer?
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In a hypothetical reactionA(aq)2B(aq) + C(aq) (Ist order decomposition)'A' is optically active (dextro-rototory) while 'B' and 'C' are optically inactive but 'B' takes part in a titration reaction (fast reaction) with H202. Hence the progress of reaction can be monitored by measuring rotation of plane of plane polarised light or by measuring volume of H202 consumed in titration.In an experiment the optical rotation was found to be 0 = 30° at t = 20 min and 8 =15° at t= 50 min. from start of the reaction. If the progress would have been monitored by titration method, volume of H202 consumed at t = 30 min. (from start) is 30 ml then volume of H202 consumed at t = 90 min will be:a)60 mlb)45 mlc)52.5 mld)90 mlCorrect answer is option 'B'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about In a hypothetical reactionA(aq)2B(aq) + C(aq) (Ist order decomposition)'A' is optically active (dextro-rototory) while 'B' and 'C' are optically inactive but 'B' takes part in a titration reaction (fast reaction) with H202. Hence the progress of reaction can be monitored by measuring rotation of plane of plane polarised light or by measuring volume of H202 consumed in titration.In an experiment the optical rotation was found to be 0 = 30° at t = 20 min and 8 =15° at t= 50 min. from start of the reaction. If the progress would have been monitored by titration method, volume of H202 consumed at t = 30 min. (from start) is 30 ml then volume of H202 consumed at t = 90 min will be:a)60 mlb)45 mlc)52.5 mld)90 mlCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a hypothetical reactionA(aq)2B(aq) + C(aq) (Ist order decomposition)'A' is optically active (dextro-rototory) while 'B' and 'C' are optically inactive but 'B' takes part in a titration reaction (fast reaction) with H202. Hence the progress of reaction can be monitored by measuring rotation of plane of plane polarised light or by measuring volume of H202 consumed in titration.In an experiment the optical rotation was found to be 0 = 30° at t = 20 min and 8 =15° at t= 50 min. from start of the reaction. If the progress would have been monitored by titration method, volume of H202 consumed at t = 30 min. (from start) is 30 ml then volume of H202 consumed at t = 90 min will be:a)60 mlb)45 mlc)52.5 mld)90 mlCorrect answer is option 'B'. Can you explain this answer?.
Solutions for In a hypothetical reactionA(aq)2B(aq) + C(aq) (Ist order decomposition)'A' is optically active (dextro-rototory) while 'B' and 'C' are optically inactive but 'B' takes part in a titration reaction (fast reaction) with H202. Hence the progress of reaction can be monitored by measuring rotation of plane of plane polarised light or by measuring volume of H202 consumed in titration.In an experiment the optical rotation was found to be 0 = 30° at t = 20 min and 8 =15° at t= 50 min. from start of the reaction. If the progress would have been monitored by titration method, volume of H202 consumed at t = 30 min. (from start) is 30 ml then volume of H202 consumed at t = 90 min will be:a)60 mlb)45 mlc)52.5 mld)90 mlCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12. Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
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