Advertisements
Advertisements
प्रश्न
Give one example of a salt which gives an aqueous solution having:
pH less than 7
उत्तर
NH4Cl is formed from a weak base, ammonium hydroxide (NH4OH), and a strong acid, hydrochloric acid (HCl). On hydrolysis, NH4Cl forms more H+ ions than OH- ions. Thus, it is acidic, with a pH less than 7.
APPEARS IN
संबंधित प्रश्न
Name three chemicals made from common salt (or sodium chloride).
Complete and balance the following chemical equations:
`NaCl + NH_3 + H_2O +CO_2`→
What happens when a concentrated solution of sodium chloride (brine) is electrolysed? Write the equation of the reaction involved.
name two salts which are basic.
Define the following term : Water of crystallization
Give four substances which contain water of crystallization and write their common name.
Name A colourless gas which bleaches.
Copy and complete the following table which refers to the action of heat on the carbonate:
| Carbonate | Colour of residue on cooling |
| Zinc Carbonate |
Which of the following is not an acidic salt?
Name the salt formed when sulphuric acid is added to sodium hydroxide and write its pH.
