anions

Question 1

carbonate test and observation

Answer 1

A little of salt solution is treated with
dil.Hcl

Brisk effer vescence with the
evolution of colorless odorless
gas

Question 2

carbonate confirmatoin

Answer 2

1) The above gas is passed through 1 ml of
lime water taken in a test tube and shaken
well (Lime water turns milky)

2) A little of the salt solution is treated
with Bacl2 solution
(A white precipitate is obtained
which is soluble in dil.Hcl)

Question 3

Test for Accetate(CH3COO

Answer 3

A little of salt is rubbed with dil.H2So4
smell of vinegar

Question 4

Conformatory test for Acetate

Answer 4

1) A little of the salt solution is treated
with neutral ferric chloride solution
(A deep red coloration is obtained)

Question 5

Test for chloride(cl-)

Answer 5

A little of the salt is warmed with
con.H2So4
(A colorless gas fuming in air gives
dense white fumes when a glass
rod dipped in NH4oH is shown in
the mouth of the test tube)

Question 6

chloride Confirmatory Test

Answer 6

Conformatory Test
1)A little of the salt is heated with
con.H2so4 and Mno2
2)A little of the salt solution is acidified
with dil.Hno3 and then Agno3 solution
is added

Question 7

Test for Sulphate

Answer 7

A little of the salt solution is diluted
with dil.Hcl and then BAcl2 added to
the above solution

White precipitate is obtained

Question 8

sulphateConfirmatory Test

Answer 8

Confirmatory Test
1)To a little of the above precipitate
excccess of dil.Hcl is added
The precipitate is insoluble

2)A little of the salt solution acidified
with acetic acid and then lead acetate
solution is added
A white precipitate is obtained

Question 9

Test for nitrate (No3-)

Answer 9

A little of the salt is heated with
conc.H2So4 and then paper balls are
added

Reddish brown fumes are evolved

Question 10

nitrate confirmatory test

Answer 10

Confirmatory test
1)A little of salt mixed with equal
volume of freshly prepared ferrous
sulphate solution and shaken well
con.H2so4 is then added to this
mixture along the walls of the test
tube
A brown ring is formed at the
junction of the two