EASY
Earn 100

Which of the following metals does not corrode?

50% studentsanswered this correctly

Important Questions on Metals and Non-Metals

EASY
Science>Chemistry>Metals and Non-Metals>Corrosion
What is corrosion? 
MEDIUM
Science>Chemistry>Metals and Non-Metals>Corrosion
Corrosion of copper gives rise to a green coating known as _____.
EASY
Science>Chemistry>Metals and Non-Metals>Corrosion
Why do we apply paint on iron articles?
HARD
Science>Chemistry>Metals and Non-Metals>Corrosion
Why do we apply paint on iron articles?
EASY
Science>Chemistry>Metals and Non-Metals>Corrosion
Silver articles become black on prolonged exposure to air. This is due to the formation of 
EASY
Science>Chemistry>Metals and Non-Metals>Corrosion
Silver articles become black when kept in open for some time, whereas copper vessels lose their shiny brown surfaces and gain a green coat when kept in open. Name the substances present in air with which these metals react and write the name of the products formed.
MEDIUM
Science>Chemistry>Metals and Non-Metals>Corrosion
Which elements are used for galvanization?
MEDIUM
Science>Chemistry>Metals and Non-Metals>Corrosion
An alloy that does not contain copper is:
EASY
Science>Chemistry>Metals and Non-Metals>Corrosion
Which alloy is used in the preparation of statues?
EASY
Science>Chemistry>Metals and Non-Metals>Corrosion
Which is the alloy of copper and tin?
EASY
Science>Chemistry>Metals and Non-Metals>Corrosion
Which metal doesn't corrode easily?
MEDIUM
Science>Chemistry>Metals and Non-Metals>Corrosion
If copper is kept open in air, it slowly loses its shining brown surface and gains a green coating. It is due to the formation of 
EASY
Science>Chemistry>Metals and Non-Metals>Corrosion
Which is not a step of metallurgy?
MEDIUM
Science>Chemistry>Metals and Non-Metals>Corrosion
Which component of air turns the silver articles black when exposed for a long time?
MEDIUM
Science>Chemistry>Metals and Non-Metals>Corrosion
Aluminium foil is used to make food containers because it does not corrode easily. Explain why aluminium does not corrode easily.
MEDIUM
Science>Chemistry>Metals and Non-Metals>Corrosion
In addition to iron, stainless steel contains________.
EASY
Science>Chemistry>Metals and Non-Metals>Corrosion
A student puts one big iron nail each in four test tubes containing solutions of Zinc sulphate, Aluminium sulphate, Copper sulphate and Iron sulphate respectively. A reddish brown coating was observed only on the surface of iron nail which was put in the solution of
 
HARD
Science>Chemistry>Metals and Non-Metals>Corrosion
Silver ornaments become black on prolong exposure to air, it is due to the formation of:
MEDIUM
Science>Chemistry>Metals and Non-Metals>Corrosion
Which metal is highly resistant to corrosion?
EASY
Science>Chemistry>Metals and Non-Metals>Corrosion
The number of valence electrons in Mg and Al are respectively