Advertisements
Advertisements
प्रश्न
Give two examples of the following :
Solid + Solid mixture
उत्तर
Solid + Solid mixture: Sand and sugar,
- Sand and stone,
- sand and sugar.
APPEARS IN
संबंधित प्रश्न
If the symbol for Cobalt, Co, were written as CO, what would be wrong with it?
Fill in the blank:
Symbol represents _____ atom(s) of an element.
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.
Helium by ‘He’
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)
Give the symbol of the following element:
Silicon
State the type of element for the following:
Lead
Give the symbol of the following element:
Nitrate
Give the symbol of the following element:
Sulphate
Give the formula of the following gas:
Nitrous oxide
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).
Phosphate
