Which produce natural gas and biogas?
Methane
Ethane
Propane
Butane
Hydrated copper sulphate (CuSO4. 5H2O) is
Zinc oxide
Lime stone
Blue vitriol
Silicon carbide
The most abundant metal found in the earth's crust is
Gold
Platinum
Aluminium
Silver
A grey powder is
Cement
Plastics
Glass
Steel
Compounds of carbon ,hydrogen and oxygen are
Silicon compounds
Phosphatic fertilizers
Carbohydrates
Which are generally solids at room temperature?
Metals
Non metals
Metalloids
Compounds
A greenish yellow gas with a pungent smell is
I2
Cl2
C
Noble gases
Chemically inert elements are,
Halogens
Alkali metal
Alkaline earth metals
Which is available in the form of ribbons?
Tin
Magnesium
Lead
Copper
The recently developed materials from carbon with the help of modern technology is
Paints
Carbon fibres
Enamel
Dyes
