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प्रश्न
Match the symbols of non-metallic elements with their correct combining power or capacity.
(a) O
(b) S
(c) Cl
Combining power or capacity A : 3; B : 2; C : 1. (negative valencies)
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उत्तर
(a) O — Valency-2 (B)
(b) S — Valency-2 (B)
(c) Cl — Valency-1 (C)
संबंधित प्रश्न
Why is the symbol S for sulphur, but Na for sodium and Si for silicon?
Explain the terms ‘chemical formula’.
Give the symbol of the following element:
Oxygen
Give the symbol of the following element:
Radon
State the type of element for the following:
Antimony
Give the formula of the following acid:
Hydrochloric
Give the formula of the following acid:
Nitric
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).
Sulphite
Fill in the blank with the correct word from the options given below:
A symbol represents a short form of a / an ________.
The name copper was taken from ______.
