Class 10 Exam > Class 10 Videos > To observe the action of Zn, Fe, Cu & Al metals on their salt solutions
To observe the action of Zn, Fe, Cu & Al metals on their salt solutions Video Lecture - Class 10
FAQs on To observe the action of Zn, Fe, Cu & Al metals on their salt solutions Video Lecture - Class 10
| 1. What happens when Zn metal is added to its salt solution? |  |
Ans. When Zn metal is added to its salt solution, a displacement reaction occurs. The zinc atoms in the metal react with the ions in the salt solution, causing the zinc atoms to lose electrons and form zinc ions. This results in the formation of a new compound, zinc salt, and the release of hydrogen gas.
| 2. How does Fe metal react with its salt solution? | |
Ans. When Fe metal is added to its salt solution, a similar displacement reaction takes place. The iron atoms in the metal react with the ions in the salt solution, leading to the formation of iron ions. This reaction is accompanied by the release of hydrogen gas.
| 3. What is the reaction between Cu metal and its salt solution? | |
Ans. The reaction between Cu metal and its salt solution is different from that of Zn and Fe. Copper is less reactive than zinc and iron. When copper metal is added to its salt solution, no displacement reaction occurs. Copper does not displace the copper ions in its salt solution, resulting in no visible change.
| 4. How does Al metal react with its salt solution? | |
Ans. Aluminum (Al) metal reacts differently with its salt solution compared to Zn, Fe, and Cu. Aluminum is more reactive than copper, zinc, and iron. When aluminum metal is added to its salt solution, a displacement reaction takes place. The aluminum atoms in the metal react with the ions in the salt solution, causing the aluminum atoms to lose electrons and form aluminum ions. This results in the formation of a new compound, aluminum salt, and the release of hydrogen gas.
| 5. Why do Zn, Fe, Cu, and Al metals react differently with their salt solutions? | |
Ans. The reactivity of metals with salt solutions depends on their position in the reactivity series. Zinc (Zn) is more reactive than iron (Fe) and copper (Cu), which is why it displaces their ions in salt solutions. Copper is less reactive than zinc and iron, so it does not displace its own ions in its salt solution. Aluminum (Al) is more reactive than copper, zinc, and iron, leading to its displacement of ions in salt solutions. The reactivity series helps predict the behavior of metals when they come into contact with salt solutions.
Text Transcript from Video
a to observe the action of zinc iron
copper and alimony metals on the
following salt solutions one zinc
sulfate solution
Z&S o4 accros two ferrous sulfate
solution feso4 Aquos three copper
sulfate solution cuso4 Aquos for
aluminum sulfate solution el2 so4 3
Aquos be arranged zinc iron copper and
aluminum metals in the decreasing order
of reactivity based on above results
apparatus required four sets of test
tube rack with clean test tubes 400cc
beakers chemicals required small pieces
of clean erupted copper iron zinc and
aluminium in the form of wires turnings
and powder saturated aqua solution of
copper sulfate cuso4 aquas saturated
aqua solution of ferrous sulfate feso4
accros saturated aqua solution of zinc
sulfate Zn so4 Aquos saturated aqua
solution of aluminum sulfate el2 so4 3
aquas procedure take 400 cc beakers and
label them copper sulfate solution
ferrous sulfate solution zinc sulfate
solution and aluminium sulfate solution
respectively with a marker pen
collect about 20 CC of saturated
solutions of copper sulfate ferrous
sulfate zinc sulfate and aluminium
sulfate in the respective beakers marked
above from the common shelf
set one take four test tubes and label
them a B C and E in each test tube pour
about 5 cc of copper sulfate solution
one in the test tube a introduce a small
piece of copper wrapped by sandpaper to
in the test tube be introduced a small
piece of iron rubbed by sandpaper three
in the test tube C introduce a small
piece of zinc rubbed by sandpaper four
in the test tube D introduce a small
piece of aluminum wrapped by sandpaper
wait for five minutes and then pour off
copper sulphate solution from each test
tube into the beaker
observe the color of metals in each test
tube
you
observations one in case of copper metal
no change in color takes place two in
case of iron metal a reddish deposit of
copper is formed on its surface
three in case of zinc metal a reddish
deposit of copper is formed on its
surface
four in case of aluminium metal a
reddish deposit of copper is formed on
its surface
conclusions one copper is the least
reactive metal to ayran zinc and
aluminium are more reactive than copper
set to wash the test tubes a b c and d
with water for 5 cc of ferrous sulfate
solution in each of the test tube
one in the test tube a introduce a small
piece of copper rubbed by sandpaper two
in the test tube B introduce a small
piece of iron rubbed by sandpaper three
in the test tube C introduced a small
piece of zinc rubbed by sandpaper four
in the test tube D introduced a small
piece of aluminum rubbed by sandpaper
wait for five minutes and then pour a
ferrous sulphate solution from each test
tube into the beaker
you
observe the color of metals placed in
each of the test tube
you
observations one in case of copper metal
no change in color takes place two in
case of iron metal no change in color
takes place three in case of zinc metal
a great deposit of iron is formed on its
surface for in case of aluminum metal a
great deposit of ayran is formed on its
surface conclusions one copper metal is
the least reactive it is already proved
in set 1 to iron metal is less reactive
than zinc and aluminium set 3 wash the
test tubes ABC and D with water for 5 CC
of zinc sulphate solution in each of the
test tube
one in the test tube a introduce a small
piece of copper rubbed by sandpaper - in
the test tube we introduce a small piece
of iron robbed by sandpaper 3 in the
test tube C introduced a small piece of
zinc rubbed by sandpaper four in the
test tube D introduced a small piece of
aluminium rubbed my sandpaper wait for
five minutes and then pour of zinc
sulphate solution from each test tube
into the beaker
observe the color of metals placed in
each test tube
you
observations one in case of copper metal
no change in color takes place two in
case of iron metal no change in color
takes place three in case of zinc metal
no change in color takes place for in
case of aluminum metal light silvery
gray deposit of zinc is formed
conclusions one as aluminum metal reacts
with zinc sulfate solution therefore it
is most reactive to zinc is more
reactive than iron and is already proved
and set to three ayran is more reactive
than copper is proved in set 1 for
copper is the least reactive metal is
proved in set 1 set 4 wash the test
tubes ABC and E with water for 5 cc of
aluminium sulphate solution in each test
tube
one in the test tube a introduce a small
piece of copper rubbed by sandpaper - in
the test tube be introduced a small
piece of iron rubbed by sandpaper three
in the test tube C introduced a small
piece of zinc rubbed by sandpaper for in
the test tube D introduced a small piece
of aluminum rubbed by sandpaper wait for
five minutes
and then pour off aluminum sulphate
solution from each test tube into the
beaker
observe the color of metals placed in
each test tube
you
observations one in case of copper metal
no change in color takes place two in
case of iron metal no change in color
takes place three in case of zinc metal
no change in color takes place for in
case of aluminum metal no change in
color takes place
conclusions as already proved in set
three one alimony metal is the most
reactive fearful it does not react with
its own salt that is aluminium sulfate
to zinc metal is more reactive than iron
and copper three iron metal is more
reactive than copper four copper metal
is the least reactive B order of
activity of metals in decreasing order
from the above experiments it can be
concluded one aluminium is the most
reactive metal two zinc is less reactive
than aluminium but more reactive than
ayran and copper
three Iren is less reactive than
aluminium and zinc but more reactive
than copper four copper is the least
reactive metal thus the order of
reactivity of metals in the decreasing
order is aluminum is greater than zinc
greater than iron greater than copper
copper and alimony metals on the
following salt solutions one zinc
sulfate solution
Z&S o4 accros two ferrous sulfate
solution feso4 Aquos three copper
sulfate solution cuso4 Aquos for
aluminum sulfate solution el2 so4 3
Aquos be arranged zinc iron copper and
aluminum metals in the decreasing order
of reactivity based on above results
apparatus required four sets of test
tube rack with clean test tubes 400cc
beakers chemicals required small pieces
of clean erupted copper iron zinc and
aluminium in the form of wires turnings
and powder saturated aqua solution of
copper sulfate cuso4 aquas saturated
aqua solution of ferrous sulfate feso4
accros saturated aqua solution of zinc
sulfate Zn so4 Aquos saturated aqua
solution of aluminum sulfate el2 so4 3
aquas procedure take 400 cc beakers and
label them copper sulfate solution
ferrous sulfate solution zinc sulfate
solution and aluminium sulfate solution
respectively with a marker pen
collect about 20 CC of saturated
solutions of copper sulfate ferrous
sulfate zinc sulfate and aluminium
sulfate in the respective beakers marked
above from the common shelf
set one take four test tubes and label
them a B C and E in each test tube pour
about 5 cc of copper sulfate solution
one in the test tube a introduce a small
piece of copper wrapped by sandpaper to
in the test tube be introduced a small
piece of iron rubbed by sandpaper three
in the test tube C introduce a small
piece of zinc rubbed by sandpaper four
in the test tube D introduce a small
piece of aluminum wrapped by sandpaper
wait for five minutes and then pour off
copper sulphate solution from each test
tube into the beaker
observe the color of metals in each test
tube
you
observations one in case of copper metal
no change in color takes place two in
case of iron metal a reddish deposit of
copper is formed on its surface
three in case of zinc metal a reddish
deposit of copper is formed on its
surface
four in case of aluminium metal a
reddish deposit of copper is formed on
its surface
conclusions one copper is the least
reactive metal to ayran zinc and
aluminium are more reactive than copper
set to wash the test tubes a b c and d
with water for 5 cc of ferrous sulfate
solution in each of the test tube
one in the test tube a introduce a small
piece of copper rubbed by sandpaper two
in the test tube B introduce a small
piece of iron rubbed by sandpaper three
in the test tube C introduced a small
piece of zinc rubbed by sandpaper four
in the test tube D introduced a small
piece of aluminum rubbed by sandpaper
wait for five minutes and then pour a
ferrous sulphate solution from each test
tube into the beaker
you
observe the color of metals placed in
each of the test tube
you
observations one in case of copper metal
no change in color takes place two in
case of iron metal no change in color
takes place three in case of zinc metal
a great deposit of iron is formed on its
surface for in case of aluminum metal a
great deposit of ayran is formed on its
surface conclusions one copper metal is
the least reactive it is already proved
in set 1 to iron metal is less reactive
than zinc and aluminium set 3 wash the
test tubes ABC and D with water for 5 CC
of zinc sulphate solution in each of the
test tube
one in the test tube a introduce a small
piece of copper rubbed by sandpaper - in
the test tube we introduce a small piece
of iron robbed by sandpaper 3 in the
test tube C introduced a small piece of
zinc rubbed by sandpaper four in the
test tube D introduced a small piece of
aluminium rubbed my sandpaper wait for
five minutes and then pour of zinc
sulphate solution from each test tube
into the beaker
observe the color of metals placed in
each test tube
you
observations one in case of copper metal
no change in color takes place two in
case of iron metal no change in color
takes place three in case of zinc metal
no change in color takes place for in
case of aluminum metal light silvery
gray deposit of zinc is formed
conclusions one as aluminum metal reacts
with zinc sulfate solution therefore it
is most reactive to zinc is more
reactive than iron and is already proved
and set to three ayran is more reactive
than copper is proved in set 1 for
copper is the least reactive metal is
proved in set 1 set 4 wash the test
tubes ABC and E with water for 5 cc of
aluminium sulphate solution in each test
tube
one in the test tube a introduce a small
piece of copper rubbed by sandpaper - in
the test tube be introduced a small
piece of iron rubbed by sandpaper three
in the test tube C introduced a small
piece of zinc rubbed by sandpaper for in
the test tube D introduced a small piece
of aluminum rubbed by sandpaper wait for
five minutes
and then pour off aluminum sulphate
solution from each test tube into the
beaker
observe the color of metals placed in
each test tube
you
observations one in case of copper metal
no change in color takes place two in
case of iron metal no change in color
takes place three in case of zinc metal
no change in color takes place for in
case of aluminum metal no change in
color takes place
conclusions as already proved in set
three one alimony metal is the most
reactive fearful it does not react with
its own salt that is aluminium sulfate
to zinc metal is more reactive than iron
and copper three iron metal is more
reactive than copper four copper metal
is the least reactive B order of
activity of metals in decreasing order
from the above experiments it can be
concluded one aluminium is the most
reactive metal two zinc is less reactive
than aluminium but more reactive than
ayran and copper
three Iren is less reactive than
aluminium and zinc but more reactive
than copper four copper is the least
reactive metal thus the order of
reactivity of metals in the decreasing
order is aluminum is greater than zinc
greater than iron greater than copper
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