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प्रश्न
Give the formula of the following gas:
Carbon monoxide
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उत्तर
Carbon monoxide – CO
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संबंधित प्रश्न
The symbol of a metal element which is used in making thermometers is :
The atoms of which of the following pair of elements are most likely to exist in free state ?
Why is the symbol S for sulphur, but Na for sodium and Si for silicon?
Match the symbols of – radicals – with their correct combining power or capacity, (valency).
(a) OH
(b) So4
(c) No3
(d) Co3
Combining power or capacity – A : 3; B : 2; C : 1. (negative valencies)
Give the symbol of the following element:
Sulphur [sulphide]
State the type of element for the following:
Lead
Give the formula of the following gas:
Nitrogen dioxide
Give the formula of the following gas:
Sulphur dioxide
Give a reason – Magnesium [2, 8, 2] has valency 2+.
Give the qualitative and quantitative meaning of the term ‘symbol’.
