Advertisements
Advertisements
प्रश्न
Match the formulas of the following gases with their correct names :
Gases - (a) H2 (b) N2 (c) O2 (d) Cl2 (e) HCI (f) NH3 (g) CO (h) CO2 (i) SO2 (j) NO (k) NO2.
Names:
(1) Ammonia (2) Nitrogen Dioxide (3) Oxygen (4) Hydrogen (5) Nitrogen (6) Chlorine (7) Carbon Monoxide (8) Sulphur Dioxide (9) Nitrogen Monoxide (10) Carbon Dioxide (11) Hydrogen Chloride
Advertisements
उत्तर
| Gases | Names | |
| (a) | H2 | (4) Hydrogen |
| (b) | N2 | (5) Nitrogen |
| (c) | O2 | (3) Oxygen |
| (d) | Cl2 | (6) Chlorine |
| (e) | HCI | (11) Hydrogen Chloride |
| (f) | NH3 | (1) Ammonia |
| (g) | CO | (7) Carbon Monoxide |
| (h) | CO2 | (10) Carbon Dioxide |
| (i) | SO2 | (8) Sulphur Dioxide |
| (j) | NO | (9) Nitrogen Monoxide |
| (k) | NO2 | (2) Nitrogen Dioxide |
संबंधित प्रश्न
Select elements and compounds from the following list: Iron, plaster of paris, chalk, common salt, copper, aluminium, calcium oxide, cane sugar, carbon, silica, sodium sulphate, uranium, potassium carbonate, silver, carbon dioxide.
The formula of the sulphate of an element X is X2(SO4)3. The formula of nitride of element X will be :
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of it
Phosphate
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of its
Acetate
Give two examples of the following:
Solid + Liquid mixture
An atom of an element is denoted by a “symbol”. Explain the meaning of the term ‘symbol’. State a reason for representing the following element by its symbol.
Hydrogen by ‘H’
Give the symbol of the following element:
Sulphate
Write the radical of the following valency:
Sulphate
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Iron
write symbol with the variable valency
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Lead
write symbol with the variable valency
