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प्रश्न
Name a colourless gas which bleaches.
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उत्तर
Sulphur dioxide gas (SO2)
संबंधित प्रश्न
State whether the following statement is true or false:
Copper sulphate crystals are always wet due to the presence of water of crystallisation in them.
Why is the electrolysis of a concentrated solution of sodium chloride known as chlor-alkali process?
What will be the colour of litmus in an aqueous solution of ammonium chloride salt?
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
When the concentrated aqueous solution of substance X is electrolysed, then NaOH, Cl2 and H2 are produced. Name the substance X. What is the special name of this process?
A salt X when dissolved in distilled water gives a clear solution which turns red litmus blue. Explain the phenomenon.
name two salts which are neutral, when dissolved in water.
Define the following term:
Efflorescence
Taking sodium carbonate as an example, give the meaning of the following terms:
Water of crystallization
Identify the following substance:
Gas C has an offensive smell like rotten eggs.
