Question

Arrange the following substances in order of increasing acidity -
(a) Household ammonia, $pH=11.4$
(b) Vinegar, $\left[H_3{O}^{+}\right]=2.5\times {10}^{-3}M$
(c) Grape juice, $\left[O{H}^{-}\right]=1.0\times {10}^{-10}M$
(d) Sulfuric acid, $pOH=13.6$
(e) Eggs, $pH=7.8$
(f) Rain water, $\left[H_3{O}^{+}\right]=2.0\times {10}^{-6}M$

• A. (a), (e), (f), (c), (b), (d)
• B. (e), (a), (f), (c), (b), (d)
• C. (b), (c), (f), (e), (a), (d)
• D. (d), (f), (e), (c), (b), (a)

Answer 1

The correct option is A (a), (e), (f), (c), (b), (d)

Ammonia $(pH=11.4)$, Eggs $(pH=7.8)$,
Rain water $\left(\right[H_3{O}^{+}]=2.0\times {10}^{-6}M)$,
Grape juice $\left(\right[O{H}^{-}]=1.0\times {10}^{-10}M)$,
Vinegar $\left(\right[H_3{O}^{+}]=2.5\times {10}^{-3}M)$
Sulfuric acid $(pOH=13.6)$