ANALYTICAL CHEMISTRY

SOLUBLE BASES ARE CALLED ____

• ALKALIS

• HYDROIDES

• REAGENTS

• COMPOUNDS THAT DISSOVE IN WATER TO GIVE OH^- IONS

IN THIS CHAPTER WE USE TWO REAGENTS WHAT ARE THOSE (CHOOSE TWO )

• NaOH

• NH₄OH

• Ca(OH)₂

• KOH

WHICH ARE ALKALIS (MORE THAN ONE OPTION MIGHT BE CORRECT)

• NaOH

• NH₄OH

• Ca(OH)₂

• KOH

WHAT IS THE COLOUR OF FeCl₃ SOLOUTION ?

• GREEN

• YELLOW

• WHITE

• BLUE

• COLOURLESS

WHAT IS THE COLOUR OF FeSO₄ SOLOUTION ?

• GREEN

• YELLOW

• WHITE

• BLUE

• COLOURLESS

WHAT IS THE COLOUR OF CuSO₄ SOLOUTION ?

• GREEN

• YELLOW

• WHITE

• BLUE

• COLOURLESS

WHAT IS THE COLOUR OF ZnSO₄ SOLOUTION ?

• GREEN

• YELLOW

• WHITE

• BLUE

• COLOURLESS

WHAT IS THE COLOUR OF Pb(NO₃)₂ IN SOLID STATE ?

• GREEN

• YELLOW

• WHITE

• BLUE

• COLOURLESS

WHAT IS THE COLOUR OF THE PRECIPITATE FORMED WHEN NaOH is added dropwise to Ca(NO₃)₂ AND WHETHER IT WILL BE SOLUBLE/INSOLUBLE IN EXCESS ?

• DIRTY GREEN, insoluble

• REDDISH BROWN, insoluble

• WHITE , insoluble

• PALE BLUE, insoluble

• WHITE, soluble

WHAT IS THE COLOUR OF THE PRECIPITATE FORMED WHEN NaOH is added dropwise to Pb(NO₃)₂ AND WHETHER IT WILL BE SOLUBLE/INSOLUBLE IN EXCESS ?

• DIRTY GREEN, insoluble

• REDDISH BROWN, insoluble

• WHITE , insoluble

• PALE BLUE, insoluble

• WHITE, soluble