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प्रश्न
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).
Permanganate
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उत्तर
| Name | Symbol | Ion | Valency |
| Permanganate | \[\ce{MnO4}\] | \[\ce{[MnO4]^{1-}}\] | −1 |
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संबंधित प्रश्न
Name the element used as a standard for atomic mass scale.
Define atomic mass unit. What is its symbol ?
What do the following symbol stand for?
2H
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’
For writing a chemical formula – ‘symbols’ and combining capacity of an element with hydrogen i.e. ‘valency’ should be known. Explain the term – combining the capacity of an element i.e. valency.
State the type of element for the following:
Arsenic
State the type of element for the following:
Sodium
Write the chemical formula of the following:
magnesium sulphate
Give the formula of the following acid:
Sulphuric
Define Alchemy.
