3.4.1 - pH And Indicators

Question 1

pH < 7 is…

Answer 1

. Acidic

Question 2

pH = 7 is…

Answer 2

. Neutral

Question 3

pH > 7 is…

Answer 3

. Alkaline

Question 4

What colour does UNIVERSAL INDICATOR present when looking at a STRONG ACID solution

Answer 4

. Red 🟥

Question 5

What colour does UNIVERSAL INDICATOR present when looking at a WEAK ACID solution !?

Answer 5

. Orange / yellow
🟧 / 🟨

Question 6

What colour does UNIVERSAL INDICATOR present when looking at a NEUTRAL solution !?

Answer 6

. Green 🟩

Question 7

What colour does UNIVERSAL INDICATOR present when looking at a WEAK ALKALINE solution !?

Answer 7

. Light blue 💎

Question 8

What colour does UNIVERSAL INDICATOR present when looking at a STRONG ALKALINE solution !?

Answer 8

. Dark blue / purple
🟦 / 🟪

Question 9

ACIDIC colour for METHYL ORANGE indicator :

Answer 9

. Red 🟥

Question 10

NEUTRAL colour for METHYL ORANGE indicator :

Answer 10

. Yellow 🟨

Question 11

ALKALINE colour for METHYL ORANGE indicator :

Answer 11

. Yellow🟨

Question 12

ACIDIC colour for PHENOLPHTHALEIN indicator :

Answer 12

. Colourless 🔲

Question 13

NEUTRAL colour for PHENOLPHTHALEIN indicator:

Answer 13

. Colourless🔲

Question 14

ALKALINE colour for PHENOLPHTHALEIN indicator :

Answer 14

. Pink🎀

Question 15

ACIDIC Colour For RED (🟥) LITMUS PAPER :

Answer 15

. Red🟥

Question 16

NEUTRAL colour for RED (🟥) LITMUS PAPER :

Answer 16

. Stays Red🟥

Question 17

ALKALINE colour for RED (🟥) LITMUS PAPER:

Answer 17

. Blue🟦

Question 18

ACIDIC Colour for BLUE (🟦) LITMUS PAPER :

Answer 18

. Red🟥

Question 19

NEUTRAL Colour For BLUE (🟦) LITMUS PAPER :

Answer 19

. Stays Blue🟦

Question 20

ALKALINE Colour For BLUE (🟦) LITMUS PAPER :

Answer 20

. Blue🟦