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प्रश्न
Write the radical of the following valency:
Oxygen
विकल्प
1+
2+
3+
1−
2−
3−
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उत्तर
2−
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संबंधित प्रश्न
On what principle are the following methods of separation based? Give one example of a mixture for each of the methods mentioned in which they are used
Magnetic separation
An element which can exhibit valencies of 2, 4 and 6 can be :
Out of ozone, phosphorus, sulphur and krypton, the elements having the lowest and highest atomicities are respectively :
State the type of element for the following:
Boron
State the type of element for the following:
Arsenic
Give the symbol of the following element:
Nitrate
Give the formula of the following gas:
Hydrogen chloride
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
Give the qualitative and quantitative meaning of the term ‘symbol’.
What is the expansion of IUPAC.
