Softening of hardened steel is done by its____________________?

Question: The best guide to judge the general quality of water is the measurement of its
[A].

pH value.

[B].

electrical conductivity.

[C].

turbidity.

[D].

dissolved oxygen content.

Answer: Option B

Explanation:

No answer description available for this question.

Question: Lead is most readily dissolved in
[A].

acetic acid

[B].

hydrochloric acid

[C].

nitric acid

[D].

sulphuric acid

Answer: Option A

Explanation:

No answer description available for this question.