Write the chemical formula of verdigris.
(Cu2(OH)2Co3)
Cu2(OH)2
CU2(OH)3
(CU(OH)2)
For making the body of ships __________is used.
Brass
Magnatium
Duralumin
Nichrome
Name the metal which is more in the earth's crust?
Iron
Calcium
Sodium
Aluminium
__________is used for making aeroplane.
Steel
Stainless steel
Bronze
Pick the odd one out.
Phosphor Bronze
Solder
Na and K are kept in
Kerosene
Water
Oil
None of above
I Ton seawater contains____________Kg salt.
1.2Kg
25kg
.4
30kg
It is dangerous to increase _________in our body.
Potassium
The ability of metals to produce a particular sound when it is tapped on a hard surface is known as
Malleability
Ductility
Sonority
Metalic lustre
Name the metal required for the growth of bones and teeth?
Magnesium