Which one of the following metals is never used as catalyst in industrial preparations?
Iron
Nickel
Platinum
Calcium
Alloys of which of the following metals are light and are used for making aeroplane?
Silver
Tin
Aluminium
Zinc
Which of the following metals can replace copper from a solution of copper sulphate?
Gold
___________ is known as rock salt.
Sodium chloride
Sodium carbonate
Sodium bicarbonate
Sodium hydroxide
The process of smelting is associated with the extraction of
Copper
The oxides of very reactive metals are reduced to metals by
electrolytic reduction
heating with carbon
heating with aluminium
liquation
Which one of the following statement is not true?
Metals are situated on the left side of periodic table
Metals have a tendency to get reduced
Metals are sonorous
Metals at the bottom of reactivity series are quite electro positive
Which of the following properties is not generally shown by metals?
Brittle
Malleable
Ductile
Conductor of heat
The most abundant metal in the crust is
Carbon
platinam
