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प्रश्न
Complete the following statement by selecting the correct option :
The formula of a compound represents
पर्याय
an atom
a particle
a molecule
a combination
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उत्तर
The formula of a compound represents a molecule.
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संबंधित प्रश्न
The valency of an element A is 3 and that of element B is 2. Write the formula of the compound formed by the combination of A and B.
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.
Calcium bromide
Write the chemical name of the following compound
Ba(ClO3)2
Give the name of the following compound
KClO3
Give the name of the element and number of atom of those elements present in the following compound.
Ammonia
Write the name of the following compound:
K2Cr2O7
Write the name of the following compound:
H2SO3
Write the name of the following compound:
H2SO4
Write the name of the following compound:
NaOH
