Concrete gets disintegrated only slowly due to the action of -
(a) Acetic acid
(b) Oxalic acid
(c) Nitric acid
(d) Hydrochloric acid.
The correct Answer Is
(a) Acetic acid
(a) Acetic acid
(b) Oxalic acid
(c) Nitric acid
(d) Hydrochloric acid.
The correct Answer Is
(a) Acetic acid