17 Questions
What are alloys?
Mixtures of metals and non-metals with desired properties
What branch of science deals with the extraction of metals from their ores?
Metallurgy
Which metals are commonly found in nature in a free state?
Gold and Silver
What is the common property of metals when they react with oxygen?
They form basic oxides
Which type of oxides do non-metals typically form?
Acidic oxides
Which metal oxide exhibits both acidic and basic properties?
$\text{Al2O3}$
What happens when reactive metals are placed in a dilute acid solution?
They form salts and hydrogen gas
Silicon is used in making transistors, chips for computers and photovoltaic ______.
cells
Most of the phosphorous is used for making phosphoric acid H3PO4 which is used in the manufacturing of phosphate ______.
fertilizers
Silicon is used in steel industry to deoxidize steel and it produces high quality corrosion resistant ______.
steel
White phosphorous as ( P4S3 ) is used in the ______ industry.
match
Phosphates are added to the detergents as they help in the removal of dirt from soiled ______.
cloths
Sulphur is used in agriculture to control ______ and pests.
fungus
Sulphur is used in the manufacturing of gun powder which is an intimate mixture of sulphur, charcoal and potassium ______.
nitrate
Most of sulphur is converted into sulphuric acid which is called the king of chemicals and is used to make variety of other ______.
chemicals
Metals can be distinguished from non-metal on the basis of their physical properties like malleability, ductility, ______ etc.
lusture
Metals have tendency to lose ______ whereas non-metal have tendency to gain electrons.
electrons
This quiz tests your knowledge on metals that exhibit malleability and ductility. Learn about the properties of iron, copper, and aluminium in terms of colour and surface appearance. Understand the electropositive nature of metals and their valence electrons.
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