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प्रश्न
Give one example of a salt which gives an aqueous solution having:
pH more than 7
उत्तर
K2CO3 is formed from a weak acid, carbonic acid (H2CO3), and a strong base, potassium hydroxide (KOH). On hydrolysis, K2CO3 forms more OH- ions than H+ ions. Thus, it is basic, with a pH more than 7.
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संबंधित प्रश्न
Name three chemicals made from common salt (or sodium chloride).
What is a salt?
Write the names, formulae and colours of any two hydrated salts.
The products of chlor-alkali process are:
(a) NaCl, Cl2 and H2
(b) H2, Cl2 and NaOH
(c) Cl2, Na2CO3 and H2O
(d) NaOH, Cl2 and HCl
Consider the following salts:
Na2CO3, NaCl, NH4Cl, CH3COONa, K2SO4, (NH4)2SO4
Which of salts will give:
neutral solutions?
Consider the following salts:
Na2CO3, NaCl, NH4Cl, CH3COONa, K2SO4, (NH4)2SO4
Which of these salts will give:
basic solutions (or alkaline solutions)?
Taking sodium carbonate as an example, give the meaning of the following terms: Water of crystallization.
Distinguish by a chemical test, Sodium carbonate and sodium sulphite.
The chemical name of plaster of Paris is ______.
The acid reacts with a base to form a neutral product called ______.
