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प्रश्न
Define the term ‘valency’.
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उत्तर
Valency is the number of hydrogen atoms which combine with (or displace) one atom of the element forming a Compound.
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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.
Fill in the blank:
Symbolic expression for a molecule is called _____.
Write the formula of the compound formed – given symbols and combining power or capacity (valency) of the following element in the compound.
K1+ Cl1-
Write the radical of the following valency:
Zinc
Give the formula of the following gas:
Nitrous oxide
Give the formula of the following gas:
Nitrogen dioxide
Name the following:
An acid whose formula is ‘H2CO3’.
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).
Chloride
Fill in the blank with the correct word from the options given below:
A symbol represents a short form of a / an ________.
Antimony has the highest tensile strength.
