E10

Question 1

Cabonate + DHCl

Answer 1

Effervescence

Question 2

Carbonate + Cal. Chlor.

Answer 2

White ppt

Question 3

Calcium carbonate soluble in?

Answer 3

Mineral and carbonic acid

Question 4

Carbonate + SNS + Exc. Rgt.

Answer 4

White ppt -> Yellow/Brown

Question 5

Silver carbonate soluble in?

Answer 5

Nitric and NH3 sol

Question 6

Sulfite + DHCl

Answer 6

Sulfur Dioxide

Question 7

Sulfite + Bar.Chlor.

Answer 7

White ppt.

Question 8

Barium sulfite soluble in?

Answer 8

Dil. HCl

Question 9

Sulfite + SNS + Exc. Rgt.

Answer 9

No change in color
White crystalline ppt.

Question 10

Silver sulfite soluble in?

Answer 10

Excess dilute nitric acid & NH3

Question 11

Sulfite + Potassium Perm.

Answer 11

Decolorization

Question 12

Sulfite + Pot. Dich.

Answer 12

Green coloration

Question 13

Sulfite + Lead Acetate / Nitrate

Answer 13

White ppt.

Question 14

Lead sulfite soluble in?

Answer 14

Nitric acid

Question 15

Thiosulfate + DHCl

Answer 15

No imm. change
Acidify -> turbidity

Question 16

Thiosulfate + Bar. Chlor.

Answer 16

White ppt

Question 17

Thiosulfate + SNS + After Standing

Answer 17

White ppt
Turns dark

Question 18

Thiosulfate + Lead Ace. / Nitrate + Exc. Rgt.

Answer 18

No change
White ppt

Question 19

Lead thiosulfate soluble in?

Answer 19

Excess thiosulfate

Question 20

Thiosulfate + Pot. Cyan.

Answer 20

NaOH + KCN + boil -> thiocyanate ions form
HCl + Ferric Chloride -> Red color

Question 21

Nitrites + Dil. Hcl

Answer 21

Pale blue liquid, evol. brown fumes

Question 22

Nitrite + Bar. Chlor.

Answer 22

No ppt

Question 23

Nitrite + SNS

Answer 23

White crystalline ppt

Question 24

Nitrite + Pot. Iodide

Answer 24

Blue color

Question 25

Thiocyanate + Conc. Sulfuric Acid

Answer 25

Yellow coloration (Turns violet when warmed test sol.)

Question 26

Thiocyanate + SNS

Answer 26

White curdy ppt

Question 27

Silver thiocyanate in ammonia

Answer 27

soluble

Question 28

Silver thiocyanate in dilute nitric acid

Answer 28

insoluble

Question 29

Boil silver thiocyanate with HCl

Answer 29

Ppt turns into silver chloride

Question 30

Thiocyanate + Copper Sulfate

Answer 30

Green coloration, then black ppt

Question 31

Addition of acid to copper thiocyanate changes black ppt to?

Answer 31

White ppt

Question 32

Thiocyanate + Merc. Nitrate

Answer 32

White ppt

Question 33

Merc. thiocyanate soluble in?

Answer 33

Excess thiocyanate

Question 34

Merc. thiocyanate, when heated?

Answer 34

Swells and forms Pharaoh's serpent

Question 35

Thiocyanate + Ferric chloride

Answer 35

Blood-red coloration

Question 36

Hypochlorite + Dil. HCl

Answer 36

Yellow, later effervescence occurs and chlorine is evolved

Question 37

Hypochlorite + Pot. Iodide

Answer 37

Bluish black color

Question 38

Hypochlorite + Lead Acetate / Nitrate

Answer 38

Brown lead dioxide produced upon boiling

Question 39

Hypochlorite + Cobalt Nitrate

Answer 39

Black ppt of Cobalt Hydroxide