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प्रश्न
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Tin
write symbol with the variable valency
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उत्तर
Tin has variable valency 2 and 4
| \[\ce{Sn^{2+}}\] | \[\ce{Sn^{4+}}\] |
| Stanous | Stanic |
OR
| \[\ce{Sn[II]}\] | \[\ce{Sn[IV]}\] |
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संबंधित प्रश्न
Write the names and symbols of the first twenty elements that you have studied in class VI & VII.
Give the symbol and the number of atoms of the following elements present in zinc chloride.
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 which element exists in the highest percentage in atmosphere.
Give the symbol of the following element:
Potassium
Give the symbol of the following element:
Carbon
Give the symbol of the following element:
Nitrate
Write the radical of the following valency:
Sodium
Write the radical of the following valency:
Nitrate
Write the chemical formula of the following:
aluminium chloride
