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प्रश्न
The pictorial symbol for water given by the alchemists was
पर्याय
MCQ
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उत्तर
shaalaa.com
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संबंधित प्रश्न
Match the non-metallic elements – with their correct symbols. Non-metallic elements are:
| Non-Metallic elements | Symbol |
| (a) Carbon | (1) O |
| (b) Chlorine | (2) I |
| (c) Oxygen | (3) Si |
| (d) Phosphorus | (4) C |
| (e) Hydrogen | (5) Cl |
| (f) Nitrogen | (6) P |
| (g) Iodine | (7) F |
| (h) Bromine | (8) H |
| (i) Fluorine | (9) S |
| (j) Silicon | (10) Br |
| (k) Sulphur | (11) N |
State the type of element for the following:
Chlorine
State the type of element for the following:
Sodium
State the type of element for the following:
Platinum
Write the radical of the following valency:
Sulphate
Write the chemical formula of the following:
magnesium oxide
Write the chemical formula of the following:
Sodium bromide
State a reason why the symbol of calcium is ‘Ca’ and of copper is ‘Cu’
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Lead
write symbol with the variable valency
Symbol of mercury is
