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प्रश्न
Give the formula of the following gas:
Nitrogen
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उत्तर
Nitrogen – N2
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संबंधित प्रश्न
What do the following symbol stand for?
2H
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
Select the correct answer from the choice given below.
The type of element-phosphorus
Give the symbol of the following element:
Lead
State what is meant by the term ‘activity series of metals’.
Write the radical of the following valency:
Sulphite
Write the chemical formula of the following:
aluminium chloride
State the valency of the following metallic element and write symbol with the valency
Magnesium
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Aluminate
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Permanganate
