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प्रश्न
Explain the meaning of the term ‘compound’ with a suitable example.
उत्तर
Compound: “Is a pure substance made up of two or more elements combined chemically by in a fixed proportion.”
Example: CO2 carbon dioxide is made up of two elements carbon and oxygen C,
12 parts by weight and oxygen
2 × 16 = 32 parts by weight
i.e. in ratio C : O = 12 : 16 = 3 : 4
APPEARS IN
संबंधित प्रश्न
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 chemical name of the following compound
Mn3(BO3)2
Write the chemical name of the following compound
Ba(ClO3)2
Write the chemical name of the following compound
(CH3COO)2Pb
Give the name of the element and number of atom of those elements present in the following compound.
Baking soda (NaHCO3)
Write the name of the following compound:
KClO
Write the name of the following compound:
KMnO4
Write the name of the following compound:
Ca3(PO4)2
Write the name of the following compound:
Cr2(SO4)3
Write the name of the following compound:
Na2O
