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Question

Two first order reactions have half lives in the ratio 9 : 1. Calculate the ratio of time intervals t1 : t2. The time t1 and t2 are the time period for (14)th and (34)th completion of 1st and 2nd reaction respectively.

[Given : ln 4 = 1.386, ln 3 = 1.099]

दो प्रथम कोटि अभिक्रियाओं की अर्ध आयु 9 : 1 के अनुपात में है। समय अन्तराल के अनुपात t1 : t2 की गणना कीजिए। समय t1 तथा t2 क्रमशः 1st तथा 2nd अभिक्रिया की (14)th तथा (34)th पूर्णता के लिए आवर्तकाल हैं।

[दिया गया है : ln 4 = 1.386, ln 3 = 1.099]

A
1 : 0.301
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B
0.125 : 602
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C
1 : 502
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D
1.86 : 1
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Solution

The correct option is D 1.86 : 1
Solution

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