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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.
Lead
write symbol with the variable valency
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उत्तर
Lead has variable valency 2 and 4
| \[\ce{Pb^{2+}}\] | \[\ce{Pb^{4+}}\] |
| Plumbous | Plumbic |
OR
| \[\ce{Pb[II]}\] | \[\ce{Pb[IV]}\] |
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संबंधित प्रश्न
What is the significance of the symbol of an element ? Explain with the help of an example.
Why is the symbol S for sulphur, but Na for sodium and Si for silicon?
Match the formulas of the following of bases with their correct names.
Bases – (a) NaOH (b) KOH (c) Ca(OH)2 (d) Zn(OH)2
Names – (1) Potassium hydroxide (2) Zinc hydroxide (3) Aluminium hydroxide (4) Calcium hydroxide (5) Sodium hydroxide
Give the symbol of the following element:
Sulphur [sulphide]
Write the radical of the following valency:
Potassium
Write the radical of the following valency:
Phosphate
Write the chemical formula of the following:
calcium sulphide
Give the formula of the following acid:
Sulphuric
Give the formula of the following gas:
Nitrous oxide
Symbol of mercury is
