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WorksheetsMetals & Non Metals
Total questions: 40
Worksheet time: 30mins
CuSO4 (aq) + Zn(s) --> ZnSO4 (aq)+ Cu(s)
The colour of the solution changes from
blue to colorless
colorless to blue
blue to light green
light green to blue
It is a non metal which is liquid. It is
bromine
mercury
iodine
sulphur
Oxides of non metals are generally
basic
acidic
neutral
highly basic
Zn + H2SO4 --> ?
Which gas will be produced?
Oxygen
Carbon dioxide
Nitrogen
Hydrogen
Identify the metal.
Zinc or sodium
iron or tin
Gold or silver
Gallium or caesium
Identify the non metal.
Sulphur
Silicon
Carbon
Iodine
Count the number of metals : Al , S , C , O , Na, K , Ag
7
6
5
4
Which metal is the best conductor of electricity ?
Aluminium
Copper
Zinc
Silver
The metal which can be cut by a knife is
Na
Mg
Fe
Zn
_________ is a non-metal but it is lustrous.
sulphur
oxygen
boron
Iodine
What is NOT true ?
different forms of the same elements are called allotropes.
Graphite, allotrope of carbon, is a conductor of electricity.
Alkali metals have high densities and high melting points
Diamond is an allotrope of carbon
After burning magnesium ribbon the ashes dissolved in water is
alkaline in nature
acidic in nature
neutral in nature
a buffer solution
After burning sulphur , the smoke was dissolved in water. The nature of the solution will be
acidic
basic
neutral
a buffer
The best conductors of heat are
Lead and mercury
zinc and aluminium
silver and iron
silver and copper
Which metal(s) is/are kept immersed in kerosene oil ?
potassium and sodium
potassium and calcium
sodium and calcium
sodium
Which metals do not react with oxygen even at high temperatures ?
Copper and gold
Copper and silver
Silver and gold
Nickel and iron
Which of the following metals exist in their native state in nature?
(i) Cu
(ii) Au
(iii) Zn
(iv) Ag
(i) and (ii)
(ii) and (iii)
(ii) and (iv)
(iii) and (iv)
Galvanisation is a method of protecting iron from rusting by coating with a thin layer of
Gallium
Aluminium
Zinc
Silver
Stainless steel is very useful material for our life. In stainless steel, iron is mixed with
Ni and Cr
Cu and Cr
Ni and Cu
Cu and Au
Which one of the following four metals would be displaced from the solution of its salts by other three metals?
Mg
Ag
Zn
Cu
During electrolytic refining of zinc, it gets
deposited on cathode
deposited on anode
deposited on cathode as well as anode
remains in the solution
Which among the following alloys contain mercury as one of its constituents?
Stainless steel
Alnico
Solder
Zinc amalgam
Which of the following can undergo a chemical reaction?
MgSO4 + Fe
ZnSO4 + Fe
MgSO4 + Pb
CuSO4 + Fe
A wire of about 2 km length can be drawn from one gram of _________.
gold
copper
iron
aluminium
An example of a metal which is a poor conductor of heat.
Al
Ag
Cu
Pb
Which of the following is an amphoteric oxide ?
Na2O
CaO
SO2
Al2O3
Hydrogen gas is not evolved when a metal reacts with nitric acid. It is because
HNO3 is a strong reducing agent. It reduces the H2 produced to water
HNO3 is a very weak acid
HNO3 is a strong oxidising agent. It oxidises the H2 produced to water
HNO3 is a very strong acid
What is the correct descending order of reactivity of these metals ?
Cu > Mg > Zn > K
K > Mg > Cu > Zn
K > Zn > Mg > Cu
K > Mg > Zn > Cu
As per the Table which is the most reactive metal?
A
B
C
D
The correct electronic configurations of Ca ( At. No. - 20) is
2, 8, 10
2, 6, 8, 4
10, 10
2, 8, 8, 2
Which one is NOT true ?
Ionic compounds are solids and hard
Ionic compounds have high melting and boiling points
Electrovalent compounds are generally soluble in water
Ionic compounds in the solid state conduct electricity because
Cinnabar is an ore of _______________
zinc
silver
mercury.
copper
The sulphide ores are converted into oxides by heating strongly in the presence of excess air. This process is known as __________
calcination
reduction
burning
roasting.
The picture is and example of use of
Enrichment of Ores
welding
thermit process
calcination
In Electrolytic Refining the impure metal is made the
anode
cathode
electrolyte
battery
This is diagram for
Electrolysis of water
Extraction of Cu
Fuel Cell
Electrolytic refining of copper
Which one is NOT true ?
Silver articles become black due to coating of silver sulphide.
Green coat on copper is acidic copper carbonate.
Iron when exposed to moist air acquires a coating of a brown flaky substance called rust.
Alloying is a very good method of improving the properties of a metal.
Solder, an alloy of lead and tin is used for welding electrical wires together because
it has low melting point
it has high melting point
it is good conductor
it is insulator
