_______________ alloys being preferred to copper alloys for manufacturing cooking utensils.
Aluminium
Barium
Calcium
None
Ores are associated with earthy or rocky materials are
Slug
Flux
Gangue
Ore
Name the metal which has highest density:
Lithium
Iridium
Copper.
_______________ is an alloy of mercury with metals.
gypsum
amalgam
plaster of paris
none
_____________ water is advised to kept away from skin and eyes.
Royal
Pure
Tap
River
_____________________ are bad conductors of heat and electricity.
Metals
Non metals
Iron
Copper
Electroplating is a process used by metals for preventing
Corrosion
Electrolysis
Malleability
Ductility
The compounds of metals with hydrogen are
Metal hydrides
Metal oxides
Products
Which fruit is used for restoring the shine of tornished copper decoration?
Lemon
Apple
Mango
Banana
Ionic compounds are generally ________________
liquid
gas
solid