Which of the given salt will have maximum pH?
#"KNO"_3#
#"NaCN"#
#"HCOONH"_4#
#"NaOH"#
#"KNO"_3# #"NaCN"# #"HCOONH"_4# #"NaOH"#
1 Answer
2.
Explanation:
As people pointed out, it is good to first know the definition of a salt:
An ionic compound formed by the neutralization of an acid and a base
- That eliminates 4. As NaOH is not achieved through neutralization. (But it is often used as a reagent in a neutralization reaction)
Compound 1,however, is formed in the neutralization reaction between Potassium hydroxide and Nitric acid:
But it is not particularly exciting to dissolve- it simply dissociates into ions,
Compound 3 on the other hand, is formed by neutralizing methanoic acid with ammonia, and can dissociate into the ammonium ion
which will decrease the
Finally, we have compound 2.
This is formed from neutralizing Hydrogen cyanide,
The cyanide ion,
So if we put
Which forms hydroxide ions! These will increase the