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प्रश्न
Write the full form of IUPAC. Name the elements represented by the following symbols:
Au, Pb, Sn, Hg
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उत्तर
The full form of IUPAC is International Union of Pure and Applied Chemistry.
Names of the elements:
Au - Gold
Pb - Lead
Sn - Tin
Hg - Mercury
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संबंधित प्रश्न
What do you understand by :
Noble gases
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
Fill in the blank:
Dalton used symbol _____ for oxygen and _____ for hydrogen.
An atom of an element is denoted by a “symbol”. Explain the meaning of the term ‘symbol’. State a reason for representing the following element by its symbol.
Hydrogen by ‘H’
State the type of element for the following:
Neon
State the type of element for the following:
Calcium
State the type of element for the following:
Chlorine
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).
Bicarbonate
Define the term ‘symbol’.
Which of the following would weigh the highest?
