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प्रश्न
A salt is dissolved in water and the pH of this salt solution is measured with a universal indicator paper. If the pH of solution is less than 7, the salt is most likely to be:
(a) CH3COONa
(b) Na2CO3
(c) KCl
(d) NH4Cl
उत्तर
NH4Cl
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.
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संबंधित प्रश्न
Write a balanced equation for the preparation of the following salts:
Copper sulphate from Copper Carbonate.
A salt whose aqueous solution will have a pH of more than 7 will be:
(a) K2CO3
(b) K2SO4
(c) NaCl
(d) NH4Cl
name two salts which are neutral, when dissolved in water.
State one observation for each of the following :
Lead nitric is heated strongly in a test tube.
Define the following term: Hygroscopy.
Taking sodium carbonate as an example, give the meaning of the following terms: Water of crystallization.
Distinguish by a chemical test sodium hydroxide solution and ammonium hydroxide solution.
Which of the following is not an acidic salt?
The acid reacts with a base to form a neutral product called ______.
You are provided with the list of chemicals mentioned below in the box:
| Sodium hydroxide solution, copper carbonate, zinc, hydrochloric acid, copper, dilute sulphuric acid, chlorine, iron |
Using suitable chemicals from the list given, write a balanced chemical equation for the preparation of the salt mentioned below:
Copper sulphate
