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प्रश्न
Write the radical of the following valency:
Phosphate
पर्याय
1+
2+
3+
1−
2−
3−
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उत्तर
3−
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संबंधित प्रश्न
Define: Elements-
State whether the following statement is true or false:
The symbol of element cobalt is CO.
The symbol of a metal element which is used in making thermometers is :
Fill in the blank:
Symbol represents _____ atom(s) of an element.
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:
Chlorine
Write the chemical formula of the following:
zinc oxide
Give the formula of the following gas:
Ammonia
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).
Nitride
Write the symbols for the following elements and classify them as solid, liquid and gas. Aluminum, Carbon, Chlorine, Mercury, Hydrogen and Helium
