1 Which salt is formed by strong acid and weak base? A Neutral salt B Basic salt C Acidic salt D Double salt
2 Which salt is used in washing powders? A Sodium carbonate B Sodium chloride C Calcium carbonate D Ammonium chloride
6 Which substance is a strong base? A Ammonium hydroxide B Sodium hydroxide C Water D Calcium carbonate
11 Which salt is used in baking? A Sodium chloride B Sodium bicarbonate C Sodium sulfate D Potassium nitrate
12 Which acid is used in fertilizers? A Hydrochloric acid B Sulfuric acid C Nitric acid D Acetic acid
16 Which salt is formed by weak acid and strong base? A Neutral salt B Acidic salt C Basic salt D Complex salt
17 Which base is also known as caustic soda? A Calcium hydroxide B Potassium hydroxide C Sodium hydroxide D Ammonium hydroxide
18 Which base is commonly used in soap making? A Calcium hydroxide B Potassium hydroxide C Ammonium hydroxide D Magnesium hydroxide
21 According to Arrhenius, an acid is a substance that produces: A OH⁻ ions in water B H⁺ ions in water C Salt only D Electrons
22 Which acid is produced in our stomach? A Nitric acid B Sulfuric acid C Hydrochloric acid D Acetic acid
26 According to Bronsted–Lowry theory, a base is a: A Proton donor B Proton acceptor C Neutron donor D Electron acceptor
27 Which indicator turns red in acidic solution? A Phenolphthalein B Methyl orange C Universal indicator D Litmus
30 According to Bronsted–Lowry theory, an acid is a: A Proton donor B Proton acceptor C Electron donor D Electron acceptor