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प्रश्न
Identify the following substance:
Gas C has an offensive smell like rotten eggs.
उत्तर
Hydrogen sulphide
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संबंधित प्रश्न
The pH of a salt used to make tasty and crispy pakoras is 14. Identify the salt and write a chemical equation for its formation. List its two uses.
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.
What is a salt?
What is meant by 'hydrated' and 'anhydrous' salts? Explain with examples.
P and Q are aqueous solutions of sodium chloride and sodium hydroxide, respectively. Which of these will turn:
(a) blue litmus red?
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 acidic.
Name the particles present in :
Strong electrolyte
Copy and complete the following table which refers to the action of heat on the carbonate:
| Carbonate | Colour of residue on cooling |
| Zinc Carbonate |
Select the correct answer from A, B, C, D and E.
A compound which in the aqueous solution state, is neutral in nature.
