1.
All acids essentially contains this element
Answer : B. hydrogen
2.
Which is slightly acidic in nature
Answer : A. Acetylene
3.
Salicylic acid is prepared by
Answer : B. Kolbe's reaction
4.
The pH of a neutral solution is
Answer : C. 7
5.
pH of pure water is
Answer : B. 7
6.
The acid which etches glass is
Answer : C. hydrofluoric acid