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प्रश्न
Symbol of mercury is
पर्याय
Ag
Hg
Au
Pb
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उत्तर
Hg
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संबंधित प्रश्न
Which particular atom of the above element is used for this purpose ?
The Latin language name of an element is natrium. The English name of this element is :
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)
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
State the type of element for the following:
Silicon
Write the radical of the following valency:
Sodium
Write the chemical formula of the following:
Sodium bromide
Give the formula of the following gas:
Nitrous oxide
Give the formula of the following gas:
Sulphur dioxide
What does the symbol '(s)' present in a chemical equation, mean?
