WORKSHEET:3Q1 FILL IN THE BLANKS:i)An acidic solution turns china rose solution into __________colour.ii) Some coloured dyes found in _________ and __________ of plants can be used as indicators.iii) Indicators show ________in colour for neutral substances.Q2 Complete the tableTEST SOLUTIONCOLOUR OF INDICATORPREDICTION(Acidic/ Basic/Neutral)PhenolphthaleinChina Rose Vinegar7-UpBaking powder Lemon juiceSoap solutionSaltMilk of magnesiaQ3 Name two indicators used to testi) Acidic substancesii) Basic substances Also state their colour change.Q4 You are holding two test tubes, one with clear lime water and the other with clear water but you have forgotten to mark them. How would you find out which one is water in the laboratory?Q5 With the help of an activity,test the neutrality for water, NaCl and sugar solution. Q6 Dorji has a few bottles of soft drinks in his restaurant. But unfortunately, these are not labelled. He has to serve the drinks on the demand of customers. One customer wants acidic drink, another wants basic and third one wants neutral drink. How will Dorji decide which drink is to be served to whom? Q7 Write the names of acids or basesfor the purposes they are used:a) It is used as an antacid to neutralise the excessive acidity in the stomach: ______________b) It is used to treat ant stings: ___________c) It is present in our stomach and helps in digestion of food: ___________d) It is used to manufacture soap: ______________