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प्रश्न
Write the radical of the following valency:
Aluminium
पर्याय
1+
2+
3+
1−
2−
3−
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उत्तर
3+
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संबंधित प्रश्न
Name the element used as a standard for atomic mass scale.
Write the formula of the compound formed – given symbols and combining power or capacity (valency) of the following element in the compound.
Na1+ Cl1-
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
Give the symbol of the following element:
Boron
State the type of element for the following:
Neon
State the type of element for the following:
Copper
Write the radical of the following valency:
Zinc
Give the formula of the following gas:
Sulphur dioxide
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).
Bromide
______ of some elements are derived from Latin or Greek names of the elements.
