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Inorganic Chemistry > Salt Analysis > Flashcards

Salt Analysis Flashcards

(96 cards)

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1
Q

Classification of anion is done by

A

Wet test

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2
Q

Analysis of cation

A

Dry Test
Flame test
Wet Lest

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3
Q

Cu+2 Ni+2 color

A

Blue Bluish green

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4
Q

Ni +2

A

Greenish

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5
Q

Fe +3

A

Dark Brown

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6
Q

Fe +2

A

Light Green

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7
Q

Mn +2

A

Light Pink
Flesh color
earthy color

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8
Q

Ammonical Smell

A

NH4 +

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9
Q

vinegar Like smell

A

CH3COO -

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10
Q

smell of rotten eggs

A

S 2-

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11
Q

Heavy density salt

A

Pb2+ Ba2+

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12
Q

Light Tuffy powder density

A

Carbonate salts

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13
Q

What is Water Extract

A

It is formed by adding salt in distilled water.

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14
Q

How to make water insoluble salt soluble

A

By adding Na2CO3

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15
Q

What is Soda extract and how is it formed and what is its use

A

Imsoluble salt when mixed with NazC03 and small amant of water to form a paste. After heating it goes into water and then is filtrated. This is Soda Extract and it is used for the of test of dissolved anion

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16
Q

The physical properties of CO2

A

acidic
colorless
Tasteless
Odourless
mon poisonous
non combustible

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17
Q

C02 + NaOH

A

NaHCO3 or Nazc03

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18
Q

CO2 + KOH

A

KHCO3 or K2CO3

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19
Q

CO2 doesn’t react with KMNO4

A

because KMNO4 is already at highest oxidation state

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20
Q

give the reaction of CO2 and calcuin carbonate thingy

A

CO2 + calOH) 2 → CAC03
It is a precipitate and turns water milky
cac03 + H20 → Ca(HCO3)2
In the presence of excess CO2 Milkins disappears.
Due to formation of bicarbonate.

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21
Q

Reaction of co 2 with baryta water.

A

CO2 + Ba (OH) 2 → Bac03
B ACO 3 is a precipitate. And it is milky.
When excess of C02 is past, milkiness disappears

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22
Q

Reaction of co 2 with baryta water.

A

CO2 + Ba (OH) 2 → Bac03
B ACO 3 is a precipitate. And it is milky.
When excess of C02 is past, milkiness disappears

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23
Q

Characteristic properties of SO2

A

colourless suffocating, having taste of burning sulphur.
Reducing agent and a bleaching agent.

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24
Q

How are SO2 and CO2 distinguished

A

Tey are differentiated by reacting the, with KMNO4 K2CR2O7 as CO2 doesn’t react with them

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25
Characteristics of CO
Neutral Colorless odourless tasteless Combustible and burns with a blue flame Poisonous in nature
26
CO forms
Carboxyhaemoglobin which is more stable than oxyhaemoglobin
27
Characteristics properties of 02
Odourless, tasteless, it rekindles a glowing splinter.
28
Characteristic properties of NH3.
Basic pungent smell or ammonical smell. It forms white fume of NH3 sale with dry with HCL gas.
29
Nestlers Test of Ammonia
Nh3 or NH4OH + K2HgI2 + KOH → NH2HgOHgI + KI + H20 The major compound is brown in colour NH3 turns red litmus to blue.
30
Characteristic properties of H2S.
Acidic Rotten egg smell. It is Combustible H2S gives positive nitro prusside test, but only in strong basic medium It is a weak acid.
31
F2 gas
Pale yellow
32
Cl2 gas color
Green yellow
33
Br2
Reddish brown
34
I2
Violet
35
What is iodo starch complex?
I2 + Starch → deep blue coloration
36
Things about NO2
Brown acidic NO 2 → N204 No 2 is Brown and paramagnetic N204 is colorless and diamagnetic
37
Compounds present in Group A Radical (which can be detected)
Carbonate (CO3²-) Bicarbonate (HC03-) Sulphide (S2-) Sulphite (S032-) Nitrite (NO2-)
38
What is the group reagant of Subgroup IA
dilute H2504 Dilute HCI
39
Group reagant Of subgroup 2A
Concentrated H2504 concentrated HCL
40
what is the confirmation test for C032- / HCO3-
All the bicarbonates are water soluble NaH CO3 is sparingly soluble All the carbonates water insoluble except IA and Ammonia so ppt reaction takesplace
41
Determine the solubility of sulphide S2-
All the sulphides are water; insoluble except 1A
42
HF Can't be stored in which type of container.
A HF can be stored in glass bottle. Because it reacts with glass, also known as itching and frosting, so it is stored in plastic container.
43
Discuss the solubility of PbCL2
Insoluble in cold water. Soluble in hot water. Soluble NCH3 COO NH 4.
44
BaSo4, Srs04, PbS04
Insoluble compounds
45
Elements in subgroup IB
Guess
46
PBSO4 is soluble in
CH3COONa
47
compound in which PBS 04 is Soluble and what does it form after reacting with it
After reaction it forms Sugar Of Lead Pb(CH3COO)2Na
48
Ammonium Molybedate Jest produce which color?
Canary yellow and also a precipitate
49
the test in which a colorless substance gets coloured and then by adding encess of Chlorine again colour disappears. presence of which compound? and some information
It gives the presence of iodide Chlorine water is added to aqueous solutions KH in the presence of chloroform
50
Brown colour of ring is due to?
Nitroso ferrous sulphate
51
. Elements in group V
Ba2+, Sr 2+, Ca 2+
52
Ba 2+ can give identification with compounds
K2CrO4, (Nh4)2SO4, (NH4)2C2O4
53
Strontium show identification with?
Ammonium Sulphate Solution, Ammonium Oxalate Solution
54
Calcium (II) shows identification with?
Ammonium Oxalate, K4[Fe(CN)6]
55
Color of group (V) precipitate
White and usually they are soluble in mineral acids
56
Things in Group VI
Na+ , K+, Mg2+
57
Identification of Magnesium (II)
1) Ammonion Solution ( NH4OH) 2) Ammonium Carbonate Solution, but in the absence of NH4 C032- Disodium hydrogen phosphate solution
58
Group VI forms which color PPT?
White
59
Group (0)
Ammonium (NH4+)
60
How is ammonium Identified?
1) On heating with alkali it gives smell of NH3 2) N H 4 CI gas is evolved with white fumes on reaction of NH3+ HCL 3) cuso 4 +4N H3 → [Cu( NH3)4] So 4
61
Information about Nessler's Reagant
→ Brown precipitate or yellow Colouration
62
Ammonium gives yellow precipitate with
Na3 [CO(N02) 6]
63
Black sulphide is formed by the action of H2S on
Cuperic Chloride
64
A metal nitrate solution with KI solution to give yellow precipitate, which on addition excess of concentrated solution of KiK I dissolve from the solution.
Pb2+
65
Which other following is insoluble in dil nitric acid but soluble in aquaregia year?
HgS
66
Borax Bead Test
.
67
How can Cu 2+ and Ag 2+ be separately identified
by reacting with HCl
68
H2S in the presence of H CI precipitates 2 group but not 4th
HCL decreases concentration of S2-
69
Soluble in ammonium yellow sulphide
As. Sb Sn
70
NH4C1 and NH3 will precipitate
Al 3+
71
NH4CI Substitution for identification of Group 3 radicals
NH4NO3
72
give points about Borax Bead Test
Borax→ Na2B407. 10 H20 Appearance→ white crystalline solid Used for coloured salts , boran reacts with corresponding metalsalts to form metal borates and show their characteristic colors.
73
Colour of flame of Na +
Golden yellow
74
Violet flame
K+
75
Flame color of Li +
Carmine Red
76
Brick Red flame
Ca 2+
77
Ba 2+ M02+ shows flame
Apple Green
78
Normal green flame is given by
Cu 2+, (B 03) 3-, Ti3+
79
Strontium gives what crdor flames
cumion Red
80
A metal onide that is yellow when hot and white when cold
zno
81
CO 2 gas passing through lime water is
acid base Ineutralization) reaction
82
shows turbidity with barytawater turns dichromate green
S032-
83
mixture of Solid Na CI and K2 CR207 with cons. H 2504 and its color
Chromyl chloride along with orange red vapours.
84
Chramyl Chloride test isn't given by
It is only given by ionic chlorides Hg2+, Pb2+, Ag+, Sn2+ Sb³+
85
Chramyl Chloride test isn't given by
It is only given by ionic chlorides Hg2+, Pb2+, Ag+, Sn2+ Sb³+ and the reason is because they show covalent character
86
The Brown kings of the color is due to
Nitroso ferrous sulphates
87
Nitrates ofwhich metal are insoluble
Mercury and Bismuth
88
precipitate of Pb S04 is soluble in
ammonium acetate and forms sugar of lead.
89
on passing H2S through 2nd group The Solutions turn milky why?
Oxidising agent
90
what does (NH4)2SO4 do with NH4OH
forms another insoluble compounds.
91
A metal is burnt in the air and the ash on moistening givess smell of ammonia
Magnesium
92
Sodium sulphide is added to Sodium nitropriusside
Purple
93
NO2- ion can be destroyed by
1 Sulphamic acid 2) Thiourea 3) urea
94
gives white turbidity bn passing H25
S02
95
NO2- and NO3- can be distinguished by
dilute H2S04
96
CRC13 + Na 2S
Cr(OHJ 3 PPT

Inorganic Chemistry (2 decks)

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