Which of the following statements does not accurately describe a characteristic

Question

Which of the following statements does not accurately describe a characteristic property of an Arrhenius acid? A) An Arrhenius acid is a substance that increases the concentration of hydronium ion in water. B) An Arrhenius acid reacts with a base to produce a salt and water. C) An Arrhenius acid turns red litmus blue. D) An Arrhenius acid tastes sour. E) An Arrhenius acid neutralizes a base. The acid strength decreases in the series HBr > HSO_4^- > CH_3 COOH > HCN > HCO_3^-. Which of the following is the strongest base? A) CO_3^2- B) CN^- C) CH_3 COO^- D) SO_4^2- E) Br^-

Explanation / Answer

8) The answer is C) An Arrenius acid turns red litmus paper into blue

Base will turn red litmus into blue but not acid

9) The answer is A) CO32-

If an acid is weak the conjucate base of the acid should be strong

HCO3- <--------> CO32- + H+

The conjugate base is CO32- , it is strong base so it strongly accept H+ and by this way the dissociation of HCO3- getting weak.

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