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Chemistry > Qualitative analysis > Flashcards

Qualitative analysis Flashcards

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1
Q

Blue

A

Copper Salts

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2
Q

Dark Green

A

Chromium salts

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3
Q

Green

A

Salts of Fe,Ni,Cu or Cr

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4
Q

Light Yellow or Brown

A

Salts of Fe(ic)

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5
Q

Dark Brown

A

PbO2, Bi2S2

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6
Q

Reddish Brown

A

Fe2O3

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7
Q

Light Pink

A

Salts of Mn

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8
Q

Pink

A

Salts of Co

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9
Q

Red

A

HgO, HgI2, Pb3O4

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10
Q

Orange Red

A

Sb2S3

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11
Q

Oxide which is yellow when hot and white when cold

A

ZnO

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12
Q

Oxide which is Reddish Brown when hot and yellow when cold

A

PbO

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13
Q

Oxide which is black when hot and Red when cold

A

HgO, Pb3O4

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14
Q

Oxide which is black when hot and red brown when cold

A

Fe203

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15
Q

Which gas rekindles a glowing splinter?

A

O2

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16
Q

Which compund turns mercurous nitrate paper black ?

A

NH3

17
Q

Which compound turns acidified potassium dichromate green?

A

SO2

18
Q

Which compound has a pungent smell and white fumes with ammonia are formed due to it?

A

HCl

19
Q

Which compound has smell of rotten eggs and turns lead acetate paper black?

A

H2S

20
Q

Which gas turns starch iodide paper blue?

A

NO2 and Br2

21
Q

Which element is voilet in colour and turns starch paper blue?

A

I2

22
Q

Which gas bleaches moist litmus paper, indigo solution,and starch iodide paper blue?

A

Cl2

23
Q

Formula of Zeolite

A

Na2Al2OSiO8.xH2O

24
Q

Chile Saltpeter

A

NaNO8

25
Q

Malachite, Blue Vitriol contain which common compound?

A

Copper is the common compound in Malachite and Blue Vitriol

26
Q

Borax, Soda Ash, Washing Soda, Baking Soda ,Zeolite, contain which common compound?

A

Sodium in the common compound in Borax, Soda Ash, Washing Soda, Baking Soda

27
Q

Lime stone,Gypsum, Plaster of Paris,Dolomite, Flourospar, Quick Lime, Slaked Lime, Soda Lime contain which common compound?

A

Calcium is the common compound in Lime stone,Gypsum, Plaster of Paris,Dolomite, Flourospar, Quick Lime, Slaked Lime, Soda Lime

28
Q

Dolomite,Magnesite, Sorels Cement, Carnalite contain which common compound?

A

Magnesium is the common compound in Dolomite,Magnesite, Sorels Cement, Carnalite

Chemistry (20 decks)

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