1. Which of the following is not an acid-base indicator?
a. blue litmus b. methyl orange c. phenolphthalein d. digene
2. Which of the following is a strong acid?
a. nitric acid b. citric acid c. acetic acid d. tartaric acid
3. which of the following is not a base
a. sodium hydroxide b. magnesiumhydroxide c. copper hydroxide b. ammonium hydroxide.
Answers
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1. c) digene
2. a) nitric acid
3. c) copper hydroxide
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