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प्रश्न
State the main characteristics of a compound with special reference to the compound iron [II] sulphide.
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उत्तर
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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संबंधित प्रश्न
Select the basic and acidic radicals in the following compounds.
MgSO4
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 |
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compounds.
Bismuth nitrate
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compounds.
Calcium bromide
Write the chemical name of the following compound:
Ca3(PO4)2
Give the name of the element and number of atom of those elements present in the following compound.
Baking soda (NaHCO3)
Explain the meaning of the term ‘compound’ with a suitable example.
Write the name of the following compound:
H2SO4
Write the name of the following compound:
NaAlO2
Write the name of the following compound:
K2PbO2
