Which of the following has highest pH in water?

N a C l

No worries! We‘ve got your back. Try BYJU‘S free classes today!

N a_{2} C O_{3}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

N a H C O_{3}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

K C l

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B $N a_{2} C O_{3}$
NaCl and KCl are salts of strong acid with strong base. They do not undergo hydrolysis in aqueous solution. Their aqueous solutions are neutral.
Sodium carbonate and bicarbonate are the salts of weak acid with strong base. Thus their solutions are basic in nature.
Now dissociation of one molecule of sodium bicarbonate gives one molecule of sodium hydroxide and one molecule of carbonic acid.
On the other hand, the dissociation of one molecule of sodium carbonate gives two molecules of sodium hydroxide and one molecule of carbonic acid.
Hence, sodium carbonate is more basic.
$N a_{2} C O_{3} + 2 H_{2} O \to 2 N a O H + H_{2} C O_{3}$
$N a H C O_{3} + H_{2} O \to N a O H + H_{2} C O_{3}$

Suggest Corrections

Similar questions

Sulphuric acid has the highest importance in the chemical Industry. Why?

Classify following substances into acidic, basic and neutral group -

$H C l, N a C l, M g O, K C l, C a O, H 2 S O_{4}, H N O_{3}, H_{2} O, N a_{2} C O_{3} .$

N a_{2} C O_{3}

N a_{2} C O_{3} B a s e + H C l A c i d \to N a H C O_{3} + N a C l

N a H C O_{3}

N a_{2} C O_{3}

H C l

15.0

11.0

N a C l

N a_{2} C O_{3}

N a_{2} C O_{3} + 2 H C l \to 2 N a C l + C O_{2} + H_{2} O

N a H C O_{3} + H C l \to N a C l + C O_{2} + H_{2} O

N a C l

N a H C O_{3}

N a_{2} C O_{3}

58.5

84

106

Which of the following aqueous solutions, containing 10 gm of solute in each case, has highest boiling point?

Na2CO3+Hcl,_______≥NaCL+NaHCO3. Na2CO3+HcL________≥NaCL+H2o+CO2 why is it written like that ,is this equation both write?

Join BYJU'S Learning Program