Question
Which statement is correct regarding acids?
I. Acid is a molecule which donates a proton or accepts electron pair in reactions.
II. Acid increases the concentration of hydrogen atoms or hydronium atoms in water.
III. Acids have a pH value of less than 7.
IV. The acid in the stomach helps in the digestion of food.
[A]
Only I
[B]
Both II and IV
[C]
I, III and IV
[D]
All the above
Answer & Explanation
Answer: All the above