Acids, Bases & Indicators Quiz

Froggy Jumps

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Acids, bases, indicators

Ashika s Prathibha v

United States

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Acids, Bases & Indicators Quiz


Froggy Jumps Acids, Bases & Indicators QuizVersion en ligne Acids, bases, indicators par Ashika s Prathibha v 1 According to Arrhenius, what is an acid? a A substance that donates electrons in reactions b A substance that increases H+ (H3O+) in solution c A substance that increases OH- in solution 2 According to Arrhenius, what is a base? a A substance that increases OH- in solution b A substance that donates protons in reactions c A substance that increases H+ in solution 3 What is a neutral pH value at room temperature? a Around 7 b Below 0 c Around 14 4 What color does litmus paper turn in an acidic solution? a Blue b Red c Purple 5 What color does litmus paper turn in a basic solution? a Red b Blue c Green 6 Phenolphthalein is colorless in acids and what color in bases? a Blue b Yellow c Pink 7 Which statement best describes a universal indicator? a It measures only pH 7 b It shows a range of colors over pH from acidic to basic c It only changes color at pH 1 8 Which of the following is a common strong acid? a Ammonia (NH3) b Hydrochloric acid (HCl) c Acetic acid (CH3COOH) 9 Which is a common strong base? a Hydrochloric acid (HCl) b Sodium hydroxide (NaOH) c Acetic acid (CH3COOH) 10 Which indicator shows a color change at the endpoint around pH 8-10? a Methyl orange b Red cabbage extract c Phenolphthalein