Question

COMPREHENSION -IV:
A mixture of two different substances A and B
undergo simultaneous first order reactions to
produce the same product Cas
K, = 1 x 10' x 2.303 min'
A
C
B
K, = 2 x 10°* 2.303 min
After 30 min (t=30 min) from the begining, mole
percentage of C was found to be 60 (take logo
2=0.3 and mole percentage=mole fraction x 100)
30. Mole percentage of B at t=0
A) 37.5 B) 40 C) 45
D) 60
31. Mole percentage of A at t=60 min
A) 37.5 B) 40 C) 45
D) 15
32. Mole percentage of B at t=60 min
A) 37.5 B) 40
C) 45
D)2.5​

Answer 1

Answer:

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