Advertisements
Advertisements
प्रश्न
Give three reasons why – carbon dioxide is considered a compound, while carbon – an element.
Advertisements
उत्तर
Carbon dioxide (C02) has a formula and properties of C02 to extinguish fire etc. are quite different from the properties it constituents carbon and oxygen. Oxygen (O) and carbon (C) are elements as these are made up of one kind of atoms. Also, carbon is combustible and oxygen is a supporter of combustion
APPEARS IN
संबंधित प्रश्न
Give the names and symbols of five familiar substances which you think are elements.
Give the symbol of the following element:
Oxygen
State the type of element for the following:
Sulphur
State the type of element for the following:
Chlorine
State the type of element for the following:
Iodine
Write the chemical formula of the following:
calcium carbonate
Give the formula of the following gas:
Nitrogen
State a reason why the symbol of calcium is ‘Ca’ and of copper is ‘Cu’
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).
Oxide
Mass of one atom of oxygen is
