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प्रश्न
Identify the following substance:
Gas C has an offensive smell like rotten eggs.
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उत्तर
Hydrogen sulphide
संबंधित प्रश्न
Name three chemicals made from common salt (or sodium chloride).
Fill in the following blank:
Rock salt is mined just like ......................
How would you show that blue copper sulphate crystals contain water of crystallisation?
The number of molecules of water of crystallisation present in washing soda crystals is:
(a) five
(b) two
(c) ten
(d) seven
Consider the following salts:
Na2CO3, NaCl, NH4Cl, CH3COONa, K2SO4, (NH4)2SO4
Which of salts will give:
acidic solutions?
What is a ‘salt’?
The pH values of three solutions A, B and C are given in the table. Answer the folloiwng questions:
| Solution | pH value |
| A | 12 |
| B | 2 |
| C | 7 |
Which solution will have no effect on litmus solution?
Outline the steps required to convert hydrogen chloride to anhydrous iron (III) chloride. Write the equations for the reactions.
Differentiate hydrate and anhydrous salts with examples.
The acid reacts with a base to form a neutral product called ______.
