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Tests for Flashcards

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1
Q

NH4OH with Zn ion NaOH with Zn ion

A

NH4OH with Zn ion NaOH with Zn ion
white ppt white ppt
colorless solution colorless solution

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2
Q

NH4OH with Al ion NaOH with Al ion

A

NH4OH with Al ion NaOH with Al ion
white ppt white ppt
insol in excess colorless solution

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3
Q

NaOH with Ca ion

A

NaOH with Ca ion
white ppt
insol in excess

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4
Q

NH4OH with Cu ion NaOH with Cu ion

A

NH4OH with Cu ion NaOH with Cu ion
pale blue ppt pale blue ppt
dark blue solution insol in excess

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5
Q

NH4OH with Fe2+ ion NaOH with Fe2+ ion

A

NH4OH with Fe2+ ion NaOH with Fe2+ ion
dirty green ppt dirty green ppt
insol in excess insol in excess

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6
Q

NH4OH with Cr ion NaOH with Cr ion

A

NH4OH with Cr ion NaOH with Cr ion
pale green ppt pale green ppt
insol in excess pale green solution

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7
Q

NH4OH with Fe3+ ion NaOH with Fe3+ ion

A

NH4OH with Fe3+ ion NaOH with Fe3+ ion
reddish brown ppt reddish brown ppt
insol in excess insol in excess

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8
Q

NaOH with NH4+ ion

A

NaOH with NH4+ ion
sharp smell of NH3 gas
turns damp red litmus paper to blue

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9
Q

Test for nitrate ion

A

Test for nitrate ion
HEAT + NaOH + Aluminium powder
obs. sharp smell of NH3 gas
turns damp red litmus to blue

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10
Q

Test for carbonate ion

A

Test for carbonate ion
Add dil acid ex: HCl
obs. CO2 gas
turns limewater milky

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11
Q

Test for sulfite

A

Test for sulfite
Add acidified KMnO4
obs. turns from purple to colorless (SO2 gas)

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12
Q

Test for sulfate

A

Test for sulfate
Add acidified BaCl2 / acidified Ba(NO3)2
obs. white ppt of BaSO4

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13
Q

AgNO3 + HNO3 with Cl ion Pb(NO3)2 + HNO3 with Cl ion

A

AgNO3 + HNO3 with Cl ion Pb(NO3)2 + HNO3 with Cl ion
white ppt white ppt

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14
Q

AgNO3 + HNO3 with Br ion Pb(NO3)2 + HNO3 with Br ion

A

AgNO3 + HNO3 with Br ion Pb(NO3)2 + HNO3 with Br ion
cream ppt white ppt

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15
Q

AgNO3 + HNO3 with I ion Pb(NO3)2 + HNO3 with I ion

A

AgNO3 + HNO3 with I ion Pb(NO3)2 + HNO3 with I ion
yellow ppt yellow ppt

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16
Q

Flame test on Na+

A

Flame test on Na+

Yellow flame

17
Q

Flame test on K+

A

Flame test on K+

Lilac flame

18
Q

Flame test on Li+

A 
Flame test on Li+
Crimson flame (red)
19
Q

Flame test on Cu+

A

Flame test on Cu+

Blue-green flame

20
Q

Physical Test for Water

A

Physical Test for Water
Check b.p
100*C sharp

21
Q 
Chemical Test for Water
with CuSO4    (white)                                  with CoCl2  (blue)
A

Chemical Test for Water
with CuSO4 (white) with CoCl2 (blue)
turns to CuSO4.5H2O (blue) turns to CoCl2.6H2O (pink)

Chemistry (2 decks)

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