Grade 9 Chemistry
Quiz by Karin
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24 questions
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- Q1Which of the following values does NOT indicate an acidic substance?851630s
- Q2What is the pH of a neutral substance?713930s
- Q3Which of the following is NOT a characteristic of an acid?It turns red litmus paper blue.It turns blue litmus paper red.Red litmus paper remains red.It is corrosive.30s
- Q4Which of the following is NOT an example of a chemical indicator?Bromothymol bluePhenolphthaleinLitmus paperCalcium carbonate30s
- Q5Which of the following colours of universal indicator indicates a strong acid?GreenPurpleRedBlue30s
- Q6Which colour will a base turn in red onion water?GreenBlueRedViolet30s
- Q7Which chemical indicator will remain colourless in an acid?Universal indicatorBromothymol blueRed litmus paperPhenolphthalein30s
- Q8If a strong acid reacts with a weak base, the resulting substance will be:A strong baseA strong acidA weak acidA weak base30s
- Q9The name for a chemical reaction in which an acid and a base react together is:acidificationhydrolysisneutralisationsalt formation30s
- Q10Which of the following groups of substances is NOT basic?metal hydroxidemetalmetal oxidemetal carbonate30s
- Q11The general reaction of an acid with a metal oxide is:acid + metal oxide --> salt + water + hydrogen gasacid + metal oxide --> salt + water + carbon dioxideacid + metal oxide --> salt + wateracid + metal oxide --> salt + hydrogen gas30s
- Q12If nitric acid reacts with magnesium oxide, the salt formed will be:oxygen chloridemagnesium chloridemagnesium nitratemagnesium sulphate30s
- Q13Which of the following gases is NOT responsible for the formation of acid rain?oxygencarbon dioxidesulphur dioxidenitrogen dioxide30s
- Q14Which of the following is NOT a valid way to reduce acid rain?Decreasing public transportReducing the use of fossil fuelsInstalling catalytic converters on motor carsReducing the gas emissions of factories30s
- Q15When an acid reacts with a metal hydroxide, one of the products is:a metalcarbon dioxidewaterhydrogen gas30s