chemistry Chemistry in Everyday life Test 12 Welcome to your chemistry Chemistry in Everyday life Test 12 Name Email 1.Which of the following acids is NOT present in grapes? (a) Malic acid (b) Citric acid (c) Acetic acid (d) Tartaric acid None 2.Which of the following is the major component of vinegar? (a) Citric acid (b) Lactic acid (c) Nitric acid (d) Acetic acid None 3.When we cut an onion, the synthase enzyme converts the amino acid sulfoxides of the onion into which acid? (a) Sulfenic acid (b) Citric acid (c) Nitric acid (d) Sulphuric acid None 4.Which of the following substances is used as a substitute for chlorine in bleaching? (a) Ethanal (b) Liquid Carbon dioxide (c) Hydrogen Peroxide (d) Tetrachloroethene None 5.In food packaging industry, which gas is used to avoid the oxidation of chips? (a)Nitrogen (b)Hydrogen (c)Helium (d)Carbon None 6.Which of the following chemical compounds is used as a preservative in pickle ? (a)Calcium Metabisulphite (b)Sodium Nitrate (c)Sodium Benzoate (d)Calcium Benzoate None 7.What is the chemical name of salt ? (a)Magnesium Dioxide (b)Calcium Chloride (c)Sodium Sulphate (d)Sodium Chloride None 8.Which of the following synthetic chemicals is responsible for ozone layer depletion? (a)Biopolymer (b)Chlorofluorocarbons (c)Polyvinyl Chloride (d)Methanol None 9.Which of the following gas causes rancidity in food products? (a)Oxygen (b)Hydrogen (c)Nitrogen (d)Carbon Monoxide None 10.Ozone gas is present in which layer of atmosphere ? (a)Stratosphere (b)Troposphere (c)Ionosphere (d)Mesosphere None 11. ______ is the primary acid present in ripe bananas. (a)Formic acid (b)Sulphuric acid (c)Malic Acid (d)Hydrochloric acid None 12.Which of the following gases has an odour that is similar to the odour of rotten eggs? (a)Hydrogen Sulfide (b)Dimethylcyclohexane (c) Chlorine (d) Ammonia None 13.What is the dominant chemical present in detergent powder? (a) Hydrochloric acid (b)Sodium carbonate (c)Calcium carbonate (d)Sodium alkyl sulphate None 14. Which of the following acids is present in ant bites? (a) Formic Acid (b) Malic Acid (c) Perchloric Acid (d) Nitric Acid None 15.A traditional ‘Battery’ contains which of the following chemicals? (a)Ethylene Glycol (b) Sulphuric Acid (c)Sodium Bicarbonate (d) Ethanol None 16.What is the dominant chemical present in Vinegar? (a) Malic Acid (b) Formic Acid (c) Sulphuric Acid (d) Ethanoic Acid None 17.Which of the following acid is found in Apple? (a) Malic Acid (b) Nitric Acid (c) Formic Acid (d) Sulphuric Acid None 18.Which of the following destroys the ozone layer? (a)Sulphur (b)Carbon (c)Chlorine (d)Silicon None Time's up
