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प्रश्न
State what is meant by the term ‘activity series of metals’.
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उत्तर
The positive of metals in the decreasing order of their reactivity is called ‘activity series of metals.’
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संबंधित प्रश्न
Write the names and symbols of the first twenty elements that you have studied in class VI & VII.
The Latin language name of an element is natrium. The English name of this element is :
Give two examples of the following:
Liquid + Liquid mixture:
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.
Give the symbol of the following element:
Zinc
State the type of element for the following:
Boron
Give the symbol of the following element:
Magnesium
Write the chemical formula of the following:
calcium carbonate
State the valency of the following metallic element and write symbol with the valency
Sodium
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).
Plumbite
