Question

indicate with the help of diagram the variation of PH with change in concentration of h + ions and negative ions​

Answer 1

Answer:

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(¡)When H+ ion is added before a highly reactive non - metal radical oxide , it possesses a strong acid.

Examples :-

1) H2SO4, i.e., sulphuric acid Is such a acid formed from the interchange of valence charges of H+ and SO4 2- (sulphate) ion.

2)HF, i.e., Hydrofluoric acid, is the strongest and most unstable acid. It is formed by interchange of valence charges of H + and F- (fluoride ion where fluorine is the most electronegative substance).

(¡¡)When OH - ion is added after highly reactive metals according to the metal activity series, it forms a strong base.

Examples :-

1) NaOH, i.e.,Sodium hydroxide, is the strongest base which is formed by interchange of valence charges of OH - and Na + ions.

2) Ca (OH) 2, i.e., Calcium hydroxide, is formed by interchange of valence charges of OH - and Ca 2+ ions.

(¡¡¡) When weaker radicals react with H+ or OH - ions, they form weaker acids.

Examples :-

1) CH3COOH is vinegar or simply acetic acid. CH3COO - (acetate ion) interchanges its valence charge with H + ion to form a weak acid (acetic acid).

2)NH4OH, i.e., Ammonium hydroxide, is formed by interchange of NH4 + 's valency charge with OH - valency charges.It is a weak base.

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