a replaceable constituent of an acid by a metal is a]H2 ,2]N2 ,3]O2 ,4]C
Answers
Answer:
4]C
Explanation:
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4] C - is the correct option.
In a molecule of monobasic acid, there is just one hydrogen atom that may be replaced. The quantity of COOH groups present in an organic acid determines its basicity. In a tribasic acid molecule, there are three hydrogen atoms that can be replaced. As a result, acids contain hydrogen that may be replaced.
Salts with at least one replaceable H atom are known as acidic salts. For example, NaHCO3, NaHSO4, and so on. When dissolved in water, these salts have a pH of less than 7, making the solution somewhat acidic.
Salts with at least one replaceable OH ion are known as basic salts. Ca(OH)Cl, Ca(OH)Cl, Ca(OH)Cl, Ca(OH)Cl These salts have a somewhat basic character when dissolved in water, with a pH greater than 7.
Sodium chloride is a neutral salt that is made by neutralising hydrochloric acid and sodium hydroxide. When a strong acid is neutralised with a strong base, the result is invariably a neutral salt. Salts, on the other hand, can be acidic, basic, or neutral in general.