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Question
State the main characteristics of a compound with special reference to the compound iron [II] sulphide.
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Solution
CHARACTERISTICS OF COMPOUND :
- Components in definite proportion e.g. compound iron [II] sulphide FeS element Iron and sulphur are in definite ratio.
- Compound is Homogeneous.
- Particles in a compound are of J kind composition of iron (II) sulphide is uniform and components cannot be seen separately.
- Compound has definite set of properties.
- Component in FeS do not retain their original properties, i.e. iron cannot be attracted by a magnet, sulphur is insoluble in CS2 and Fe does not gives H2 with dil. acid. This means compound formed has new properties.
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RELATED QUESTIONS
Match the following:
|
Compound |
Formula |
|
1. Boric acid |
i. NaOH |
|
2. Phosphoric acid |
ii. SiO2 |
|
3. Nitrous acid |
iii. Na2CO3 |
|
4. Nitric acid |
iv. KOH |
|
5. Sulphurous acid |
v. CaCO3 |
|
6. Sulphuric acid |
vi. NaHCO3 |
|
7. Hydrochloric acid |
vii. H2S |
|
8. Silica (sand) |
viii. H2O |
|
9. Caustic soda (sodium hydroxide) |
ix. PH3 |
|
10. Caustic potash (potassium hydroxide) |
x. CH4 |
|
11. Washing soda (sodium carbonate) |
xi. NH3 |
|
12. Baking soda (sodium bicarbonate) |
xii. HCl |
|
13. Lime stone. (calcium carbonate) |
xiii. H2SO3 |
|
14. Water |
xiv. HNO3 |
|
15. Hydrogen sulphide |
xv. HNO2 |
|
16. Ammonia |
xvi. H3BO3 |
|
17. Phosphine |
xvii. H3PO4 |
|
18. Methane |
xviii. H2SO4 |
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