A weak acid is $ 0.1\% $ ionised in $0.1\, M $ solution. Its $pH$ is
A weak acid is $ 0.1\% $ ionised in $0.1\, M $ solution. Its $pH$ is
- A
$2$
- B
$3$
- C
$4$
- D
$1$
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- [IIT 2009]
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- [AIPMT 2007]