Reactivity Test 71215
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7/23/2019 Reactivity Test 71215 http://slidepdf.com/reader/full/reactivity-test-71215 1/3 Checked 04/01/16 7/12/15 Test Reactivity Series Questions 1. Write down the order of reactivity series according to decreasing reactivity? 3/3 otassi!" #odi!" $ithi!" Ca%ci!" &agnesi!" '%!"in!" Car(on )inc *ron +in $ead ,ydrogen Co--er &erc!ry #i%ver o%d %atin!" 2. ive an ea"-%e of dis-%ace"ent reaction? 2/2 )n,2 ,2)n ygen is dis-%aced fro" inc to hydrogen 3. What is a edo reaction? ive an ea"-%e. 2/3 edo reaction is the red!cing and oidiing reaction. a"-%e &g)n &g)n "agnesi!" is oidied &g)n )n&g "agnesi!" is red!ced 4. ,ow does the e%ectron transfer of redo take -%ace? ive 2 ea"-%es. 3/3 idation is the %oss of e%ectrons and ed!ction is the gain of e%ectrons. a"-%e &g 2 )n )n 2 &g CaC! 2 Ca 2 C! 5. What is a s-ectator ion? ive an ea"-%e. 2/2
Transcript of Reactivity Test 71215
7/23/2019 Reactivity Test 71215
http://slidepdf.com/reader/full/reactivity-test-71215 1/3
Checked 04/01/16
7/12/15
Test
Reactivity Series Questions
1. Write down the order of reactivity series according to decreasing reactivity?
3/3otassi!"#odi!"$ithi!"Ca%ci!"&agnesi!"'%!"in!"Car(on)inc*ron
+in$ead,ydrogenCo--er&erc!ry#i%vero%d%atin!"
2. ive an ea"-%e of dis-%ace"ent reaction?
2/2)n,2 ,2)nygen is dis-%aced fro" inc to hydrogen
3. What is a edo reaction? ive an ea"-%e.
2/3edo reaction is the red!cing and oidiing reaction.a"-%e &g)n &g)n "agnesi!" is oidied
&g)n )n&g "agnesi!" is red!ced
4. ,ow does the e%ectron transfer of redo take -%ace? ive 2 ea"-%es.
3/3
idation is the %oss of e%ectrons and ed!ction is the gain of e%ectrons.
a"-%e &g2)n )n2&g
CaC!2 Ca2C!
5. What is a s-ectator ion? ive an ea"-%e.
2/2
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#-ectator ion is the e%e"ent that re-%aces its -%ace.
)n#4C! C!#4)n
6. #how the reaction (etween inc and co--er ** s!%fate so%!tion?
2/2
)nC!#4 )n#4C!7. ive an ea"-%e of reaction of "eta%s with water? What is the res!%t?
3/3
2'%2,2 '%2,2,2
'%!"in!" hydroide and ,ydrogen is for"ed8. What ha--ens to iron in stea"? Why?
1/2
39e4,2 9e34 ,2
:. What ha--ens to reaction of "eta%s with di%!te acids? ive ea"-%es.
2/3
&eta% ,ydrogen ch%oride &eta% ch%oride hydrogen&eta% #!%f!ric acid &eta% #!%fate hydrogen
Co--er ,ydrogen ch%oride Co--er ch%oride hydrogen
Co--er #!%f!ric acid Co--er #!%fate hydrogen
10.Why doesn;t go%d react with the di%!te acids? eason
2/2
o%d doesn;t react with di%!te acids (eca!se go%d is very %ow in reactivity
series so *t do not react
With di%!te acids.
11.Why does a%!"in!" hard%y react with di%!te acids when co%d (!t reacts
vigoro!s%y when it is heated? -%ain?
3/3
'%!"in!" does not react in co%d (!t react vigoro!s%y in hot (eca!se
a%!"in!" is covered with a
thin strong %ayer a%!"in!" oide that -revent acid fro" getting to it (!t
when it is heated the
a%!"in!" oide is re"oved and it shows its tr!e reactivity.
12.,ow can yo! etract ,2 fro" "anganese and stea"? #how reaction.
3/3
&n ,2 &n ,2
,2 is etracted
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