Question

You
dilu
forn
Alloys
Rep
.
alur
con
obs
.
Have you ever
some experiments.
Reaction with air
Cut a small piece of sodium with a knife. Observe the
metallic lustre at the newly formed surface. Keep it
amino
exposed to air for some time.
What happened to the surface? What could be the
solid solution which is
reason?
eous mixture of two or
s. Compared to metals, Take an aluminium wire and rub its surface with
ss better strength and
sand paper. Don't you see a bright metallic lustre?
corrosion. More than
of metals are used in
Within a few days, it gets tarnished. Why does it
their alloys. Alloys
happen?
e large class of
materials with
rties. An alloy of gold
Metals like copper, magnesium etc., also react
used for making
similarly with atmospheric air.
e components of When metals come into contact with atmosphere, they
given below. undergo chemical reaction with different components
con of air. As a result, the metal loses its lustre and gets
Components
tarnished.​

Answer 1

Answer:

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