10 mL of a solution of NaOH is found to be completely neutralised by 8 mL of a given solution of HC1. If we take 20 ml of the same solution of NaOH, the amount of HC1 solution (the same solution as before) required to neutralise it will be
(a) 4 mL
(b) 8 mL
(c) 12 mL
(d) 16 mL

Acids react with Bases to give Salt and Water. The Word Reaction is given as Acid + Base --> Salt + Water.

An acid is a molecule or ion capable of donating a proton, or, alternatively, capable of forming a covalent bond with an electron pair. It turns blue litmus paper to red. Acid is a substance that contains hydrogen ions (H+). It do not give colour with phenolphthalein indicator and do not absorb carbon dioxide gas. Also, acids do not react with ammonium salt.

Natural Acids are the acids that occur in nature, such as acids present in fruits. Acids are generally found in Vinegar, Curd, Spinach, lemons, Citrus fruits, Amla, Tamarind, grapes, unripe mangoes, Citrus fruits such as oranges, etc.]