AP QUIZZES - AP TOPIC 5 Qualitative & Quantitative Chemistry SET A
AP Quizzes - AP TOPIC 5 Qualitative & Quantitative Chemistry SET A.
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QUESTION 1. Which one of the following substances is a common, strong oxidizing agent?
(A) Na
(B) Zn
(C) MnO
4
-
(D) H
2
(E) Sn
QUESTION 2. In the reaction below, how many electrons are transferred?
2MnO
4
-
+ 5Sn
2+
+ 16H
+
==> 2Mn
2+
+ 5Sn
4+
+ 8H
2
O
(A) 2
(B) 5
(C) 10
(D) 0
(E) None of the Above
QUESTION 3. In the reaction below, how many electrons are transferred?
2Fe
3+
+ Ca ==> 2Fe
2+
+ Ca
2+
(A) 0
(B) 1
(C) 2
(D) 4
(E) 6
QUESTION 4. When the reduction half-equation for the conversion of dichromate (VI) ions in acid solution to form chromium (III) ions is written and balanced using the smallest possible integers, what is the sum of the coefficients?
(A) 28
(B) 29
(C) 30
(D) 10
(E) None of the Above
QUESTION 5. When referring to the same half-reaction as in question #4 above, which of the following statements is NOT true?
(A) The chromium species in dichromate (VI) is reduced
(B) The reaction is carried out in acid solution
(C) Dichromate (VI) ions can act as oxidizing agents
(D) The oxidation numer of chromium changes from -2 to +3
(E) All statements are true
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