Give reasons for the following: [5]
i. Caustic potash is a mono acidic base.
ii. Nitric acid is considered as a strong acid whereas acetic acid is a weak acid.
iii. Ammonia gas is a covalent compound which does not conduct electricity but its aqueous solution is a weak electrolyte.
Answers
Explanation:
I) A monobasic acid has only one hydrogen ion to donate to a base in an acid-base reaction. Hence, a monobasic molecule has solely one replaceable hydrogen atom. Monobasic acids ionize in water to give only one H+ ion per acid molecule. Example: HCl.
ii) Some acids, such as hydrochloric and nitric acids, are strong electrolytes, completely dissociated into ions; these acids are known as strong acids. Others, such as acetic and nitrous acids, are only partially dissociated in solution. These acids are weak electrolytes and are known as weak acids.
iii) Ammonia gas is a covalent compound.As there are no ions present in it it does or conduct electricity. ... Due to the presence of these ions an aqueous solution of NH3 gas in water conducts electricity. Related Answer. The atoms of copper contain electrons and the atoms of rubber also contain electrons.
Answer:
Acetic acid is considered a weak acid and hydrochloric acid a strong acid because in contact with water acetic acid furnishes less hydrogen ions compared to HCL.