Which is a metal?

• Mg

• S

• P

• Br

Which is an nonmetal?

• Au

• Hg

• Br

• Cu

Metalloids have properties of---------------

• metals

• nonmetals

• both metals and nonmetals

• neither metals nor nonmetals

Which is a metalloid?

• Aluminium

• Antimony

• Zinc

• Mercury

Which is a good conductor of electricity?

• Bromine

• Iodine

• Graphite

• Sulphur

Which metal is in liquid form at ordianry temprature and pressure?

• Mg

• Na

• Sc

• Hg

Bronze is an alloy of __________

• Cu and Sn

• Cu and Zn

• Cu and Fe

• Fe and Ni

An alloy prepared from Fe, Ni and Cr is known as __________

• Brass

• Bronze

• Stainless steel

• amalgam

Which Metal prevents the rusting of iron?

• Cu

• Zn

• Al

• Ag

Silver gets corroded due to which gas present in air?

• Oxygen

• Hydrogen sulphide

• Carbon dioxide

• Nitrogen