Advertisements
Advertisements
प्रश्न
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Mercury
write symbol with the variable valency
Advertisements
उत्तर
Mercury exhibits valency 1 and 2
| \[\ce{Hg^{1+}}\] | \[\ce{Hg^{2+}}\] |
| Mercurous | Mercuric |
APPEARS IN
संबंधित प्रश्न
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 which element exists in the highest percentage in atmosphere.
Give the formula of the following acid:
Hydrochloric
State the valency of the following metallic element and write symbol with the valency
Potassium
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).
Bisulphite
The chemical symbol for sodium is
Which of the following would weigh the highest?
What is the significance of the symbol of an element?
Write a note on Greem symbols.
Which letter is never used in any element symbol?
