1) Phenolphthalein in ACID a) Pink b) Colourless c) Green d) Yellow 2) Phenphthalein in ALKALI a) Pink b) Colourless c) Orange d) Purple 3) Methyl orange in ACID a) Red b) Blue c) Green d) Colourless 4) Methyl orange in ALKALI a) Red b) Blue c) Green d) Yellow 5) Universal Indicator in ACID a) Red b) Green c) Blue d) Colourless 6) Universal Indicator in ALKALI a) Red b) Green c) Blue d) Colourless 7) Universal Indicator in NEUTRAL a) Red b) Green c) Blue d) Colourless 8) Litmus in ACID a) Red b) Blue c) Green d) Yellow 9) Litmus in ALKALI a) Red b) Blue c) Green d) Colourless 10) What pH is neutral? a) 1-6 b) 7 c) 8-14 d) 5 11) What pH range is acid? a) 1-6 b) 7-10 c) 8-14 d) 1-9 12) What pH range is alkali? a) 1-9 b) 8-14 c) 1-6 d) 7

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