Lead Nitrate chemistry cbse 12 Analysis

'nor)ani$ 'nor)ani$ Salt *nalysis + Pb,NO 3-2 S.No

Experiment

Observation

Analysis Of Anions Preliminary Test 1

Colour of the substance substance

Colorless

2

Appearance

Crystalline

3

Solubility: Tae  Tae a little little amount o/ salt and dissolve it in distilled "ater or dil 0$l or dil 0NO 3

Soluble

4

Action of Heat: * small amount o/ te salt is taen in a dry test tube and )ently eated at (rst and ten stron)ly.

Reddis !ro"n #as evolves.

4

Flame Test: * small amount o/ te salt is made into paste "it $on$ 0Cl in a "at$ )lass and introdu$ed into No $ara$teristi$ $olored %ame te non luminous part o/ te bunsen %ame.

&

Ash Test: To  To te little o/ salt salt taen in a test tube mixed "it $obalt nitrate and $on$. 0NO 3soa a (lter paper and brn it in non+luminous part o/ te bunsen %ame.

No $ara$teristi$ $olored as

'denti($ation 'denti($at ion Tests 1

Action of dil.HCl:  * small amount o/ salt is treated "it dil 0Cl

No $ara$teristi$ natural )as evolved

2

Action of Dil.H2SO4: * small amount o/ salt is rubbed "it dil 02SO4 in a "at$ )lass

No $ara$teristi$ observation

3

4

Concentrated H2SO4 Test: * small Reddis !ro"n apour evolved amount o/ slat is treated "it $on$ and solution turns bro"n. 02SO4 in "at$ )lass Copper Turnin Test: * small amount o/ te salt is eted "it $opper turnin)s and $on$ 0 2SO4

Reddis !ro"n #as evolves.

&

Action of "aCl 2: Some amount o/ !aCl2 is added to te salt solution.

No $ara$teristi$ observation

Con!rmatory Tests

1

Carbonate: * small amout o/ te salt is treated "it dil 0Cl and te $olorless odourless )as evolved is passed trou) lime "ater taen in anoter test tube.

No $ara$teristi$ $an)e

2,*-

Sulphide:  To a /e" drops o/ salt solution a /e" drops o/ silver nitrate solution is added.

No bla$ pre$ipitate is /ormed

2,!-

Sulphide:  To a /e" drops o/ salt solution 2m o/ ead a$etate solution is added.

No bla$ pre$ipitate is /ormed

3,*-

Chloride: To a /e" drops o/ salt solution a /e" drops o/ dilute 0NO 3 and silver nitrate solution are added.

No $urdy "ite pre$ipitate is /ormed.

3,!-

Chloride:# Chromyl Chloride Test:  To a small amount o/ salt a pin$ o/ Potassium di$romate is added and eated "it a /e" drops o/ $on$.0 2SO4.

No $ar$teristi$ observation

4,*-

Acetate: To a salt solution 1 or 2 drops o/ neutral /erri$ $loride solution id added.

No $ara$teristi$ observation

4,!-

Acetate: * mixture o/ salt and etanol is eated "it $on$. 0 2SO4 in a test tube.it is ten $ooled and ten poured into ex$ess o/ "ater.

No $arateristi$ observation

&,*-

$itrate:#"ro%n &in Test: * /e" drops o/ te salt solution is mixed "it an eual volume o/ /resly prepared /errous sulpate solution and saen "ell. To tis $on$.0 2SO4 is added in drops alon) te "alls o/ te test tube.

* bro"n rin) is /ormed at te  5un$tion o/ te t"o layers .

&,!-

$itrate: To te salt solution /e" drops o/ dipenyl amine is added.

* deep blue $olorisation is obtained

&, C -

$itrate: To te salt solution  NaO0 solution and aluminium po"der or ;in$ dust is addded and eated.

Evolution o/ $olourless )as "it te smell o/ ammonia.
6,*-

Sulphate:  To salt solution a little lead a$etate solution is added.

No $arateristi$ $an)e

6,!-

Sulphate:  Te above pre$ipitate is separated and eated "it ammonium a$etate solution.

No $arateristi$ $an)e

*nalysis O/ Cations 1

Salt solution7NaO07Nessler=s Rea)ent

No ppt is /ormed

2

Salt solution7dil 0Cl

>ite ppt soluble "en boiled "it "ater is obtained

3

Salt Solution7dil Cl70 2S )as

888

4

Salt soultion71m N0 4Cl72m N04O0

888

&

Salt soultion71m N0 4Cl72m N04O0702S )as

888

6

Salt soultion71m N04Cl72m N04O072m ,N04-2CO3?saturated@

888

9

Salt soultion71m N04Cl72m N04O072m Na20PO4

888

Con(rmatory Tests+#P1,Pb-+,ead-

1,*-

1,!-

 To a /e" drops o/ te salt solution potassium $romate solution is added.

:ello" ppt is obtained.

 :ello" ppt soluble in ot "ateris  To a /e" drops o/ salt solution 2m obtained "i$ reappears as o/ potassium iodide solution is added A#olden :ello" Span)lesA on $oolin).

&esult

*nion N'trate

Cation ead

'n/eren$e

*bsen$eo/ $opper and man)anese Baybe $loridesulpate nitrate Baybe $loridesulpate nitrate

Baybe nitrate is present

*bsen$e o/ !arium Cal$ium and Copper.

*bsen$e o/ *luminium in$Ba)nesium

*bsen$e o/ $arbonate and sulpide

*bsen$e o/ a$etate

Presen$e o/ nitrate identi(ed. Presen$e o/ nitrate identi(ed.

*bsen$e o/ sulpate

*bsen$e o/ $arbonate is $on(rmed.

*bsen$e o/ sulpide is $on(rmed.

*bsen$e o/ sulpide is $on(rmed.

*bsen$e o/ $loride is $on(rmed

*bsen$e o/ $loride is $on(rmed

*bsen$e o/ a$etate is $on(rmed.

*bsen$e o/ a$etate is $on(rmed.

Presen$e o/ nitrate is $on(rmed.

Presen$e o/ nitrate is $on(rmed.

Presen$e o/ nitrate is $on(rmed.

*bsen$e o/ sulpate is $on(rmed. *bsen$e o/ sulpate is $on(rmed.

*bsen$e o/ #roup D ?*mmonium ion@ Presen$e o/ #roup 1 is identi(ed. 888 888 888 888

888

Presen$e o/ ead is $on(rmed.

Presen$e o/ ead is $on(rmed.

#iven Salt ead Nitrate