When the hydrogen ion concentration [ H ^ + ]changes by a factor … - Vidyadip

MCQ

When the hydrogen ion concentration $\left[ H ^{+}\right]$changes by a factor of $1000$ , the value of $pH$ of the solution $.........$.

A
increases by $1000$ units
B
decreases by $3$ units
C
decreases by $2$ units
✓
increases by $2$ units

✓

Answer

Correct option: D.

increases by $2$ units

d
$\Delta\left[ H ^{+}\right]=1000$

$\quad \Delta pH =-\log \Delta\left[ H ^{+}\right]=-\log 10^3$

$\quad=-3$

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