Why is K_{a₂} - NCERT Class XII Chemistry <br> Chapter

NCERT Class XII Chemistry
Chapter - The p-Block Elements
Questions with Solutions

Question : 65 of 74

Marks: +1, -0

Why is

K_{a_{2}} < < K_{a_{1}}

for

H_2SO_4

in water?

Solution:

H_2SO_4

is a very strong acid in water largely because of its firstionisation to

H3O^{+}

and

HSO_4^{–}

. The ionisation of

HSO_4^{–}

H3O^{+}

and

SO_4^{2–}

is very very small. That is why,

K_{a_{2}} < < K_{a_{1}}

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