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प्रश्न
Give two examples of the following:
Liquid + Liquid mixture:
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उत्तर
Liquid + Liquid mixture :
- Oil in water,
- Alcohol and water.
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संबंधित प्रश्न
Write the names and symbols of the first twenty elements that you have studied in class VI & VII.
Define: Elements-
Give two symbols which have been derived from the " Latin names" of the elements.
The English name of an element is potassium, its Latin name will be :
The symbols of the elements cobalt, aluminium, helium and sodium respectively written by a student are as
follows. Which symbol is the correct one ?
The formula of the sulphate of an element X is X2(SO4)3. The formula of nitride of element X will be :
Explain the terms 'valency' and 'variable valency'.
Match the symbols of metallic elements – with their correct combining power or capacity.
(a) K
(b) Zn
(c) Al
(d) Na
(e) Ca
Combining power or capacity – A : 3 ; B : 2 ; C : 1. (positive valencies)
State which element exists in the highest percentage in human body.
State the type of element for the following:
Xenon
