Advertisements
Advertisements
प्रश्न
Write the radical of the following valency:
Sulphite
विकल्प
1+
2+
3+
1−
2−
3−
Advertisements
उत्तर
2−
APPEARS IN
संबंधित प्रश्न
The symbol of a metal element which is used in making thermometers is :
How are the elements with variable valency named? Explain with an example.
Write the formula of the compound formed – given symbols and combining power or capacity (valency) of the following element in the compound.
K1+ Cl1-
Match the formulas of the following of acids with their correct names:
Acids – (a) HCI (b) HNO3 (c) H2SO4 (d) H2CO3
Names – (1) Carbonic acid (2) Sulphuric acid (3) Hydrochloric acid (4) Nitric acid
State the type of element for the following:
Carbon
State the type of element for the following:
Silicon
Write the radical of the following valency:
Calcium
State a reason why the symbol of calcium is ‘Ca’ and of copper is ‘Cu’
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).
Hydroxide
What does the symbol '⇌' present in a chemical equation, mean?
