Advertisements
Advertisements
प्रश्न
Give two examples of the following:
Solid + Liquid mixture
Advertisements
उत्तर
Solid + Liquid mixture :
- Sand and water,
- Charcoal and water.
APPEARS IN
संबंधित प्रश्न
Which particular atom of the above element is used for this purpose ?
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.
Match the symbols of non-metallic elements with their correct combining power or capacity.
(a) O
(b) S
(c) Cl
Combining power or capacity A : 3; B : 2; C : 1. (negative valencies)
Match the formulas of the following gases with their correct names :
Gases - (a) H2 (b) N2 (c) O2 (d) Cl2 (e) HCI (f) NH3 (g) CO (h) CO2 (i) SO2 (j) NO (k) NO2.
Names:
(1) Ammonia (2) Nitrogen Dioxide (3) Oxygen (4) Hydrogen (5) Nitrogen (6) Chlorine (7) Carbon Monoxide (8) Sulphur Dioxide (9) Nitrogen Monoxide (10) Carbon Dioxide (11) Hydrogen Chloride
Give the symbol of the following element:
Aluminium
Give the symbol of the following element:
Phosphate
Write the radical of the following valency:
Potassium
Write the radical of the following valency:
Iodine
Write the chemical formula of the following:
calcium carbonate
Give the formula of the following acid:
Hydrochloric
