d. KOH Which solution will change red litmus to blue? a. HCI(ag) b. NaCl(aq) c.
ID: 697403 • Letter: D
Question
d. KOH Which solution will change red litmus to blue? a. HCI(ag) b. NaCl(aq) c. CHOHaa) -3. OH(aq) . There are alternate acid base theories that define an acid as any species that can adonate a proton b. donate an electron d'accept an electron c. accept a proton 5, which of these substances is an acid? What is one property of acids? a. Acidic solutions feel slippery. 6. Acids react with certain metals to make hydrogen. b. Acids taste bitter. d. Acids turn red paper According to Arrhenius, what does the reaction Ba(OHho ¼ Ba2.+ 20H' a. dissociation of an acid. 7. represent? b. formation of an acidic solution d. formation of a neutral solution dissociation of a base 8. Which of the following statements is true concerning acids and bases? a. acids and bases don't react with each other c. acids mixed with bases make stronger bases b. acids mixed with bases neutralize each other d. acids mbxed with bases make stronger acids 9. Which is the correct set of acid properties: a. sour taste, corrosive, change litmus from red to blue b. sour taste, corrosive, change litmus from blue to red c. sweet taste, slippery, change litmus from blue to red d. sour taste, slippery, change litmus from blue to red -10. A chemical species having one ionizable hydrogen ion is: b. diprotic c. triprotic d. polyprotic _ 11.The conjugate acid of OH is: a) H20 b) H c) o d) OH e) H 0*Explanation / Answer
(3) -------(d)
Since NaOH is a strong base, hence red litmus changes to blue.
(4) -----(d)
According to Lewis acid base theory, an acid is an electron acceptor.
(5) -----(c)
HBr donates proton, hence it is acid
(6) -----(c)
Example :- HBr (acid) reacts with metal (Na) produces hydrogen gas
HBr + Na --------> NaBr + H2
(7) -----(c)
(8) -----(b)
(9) ----(b)
(10) ---(a)
(11) ---(a)
OH^- + H^+ -----> H2O
Base Conjugate acid
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