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Q.

Ordinary strong solution of HCl, HNO3 and H2SO4 contains what fraction of acid roughly and attain azeotropic mixture

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a

2/3, 3/3 and 1/5 fractions of pure acid and rest water respectively

b

1/5, 2/3 and 3/3 fractions of pure acid and rest water respectively

c

2/3 , 1/5 and 3/3 functions of pure acid and rest water respectively

d

None

answer is A.

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Detailed Solution

HCl, HNO3 and H2SO4 form azeotrope at 20%, 68% and 98% respectively by mass of acid.
Therefore, HCI contains  20/100 = 1/5
HNO3 contains  68/100  2/3
H2SO4 contains  98/100  3/3
Thus, ordinary strong solution of HCl, HNO3 and H2SO4 contains roughly 1/5,2/3 and 3/3 fractions of pure acid and water respectively.

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