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Chemistry- QA > Heating On Solids > Flashcards

Heating On Solids Flashcards

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1
Q

What to observe?

A
  • Colour of the solid residue
  • > Hot and cold

-Gas

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2
Q

Carbonate metals?

A

CO2

-> gas evolved gives white ppt with limewater

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3
Q

Nitrate of metals

A

NO2 and O2

  • > brown gas evolved; damp blue litmus red
  • > gas evolved relight a glowing splint
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4
Q

Sulfite of metal

A

SO2

->gas evolved turns acidified KMnO4 from purple to colourless

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5
Q

How to test for SO2

A

KMnO4: H2SO4
3:5

-> white strip to stain

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6
Q

NH3

A

Gas pxed turn moist red litmus blue

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Chemistry- QA (3 decks)

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