AB 66. The following drugs/substances is assay by direct acidimetry, EXCEPT: a. Phosphoric acid b. Soda ash c. Sodium hydroxide d. Sodium bicarbonate A B 67.Method used in the assay of ZnO a. Direct acidimetry c. Direct alkalimetry Residual acidimetry b. Residual alkalimetry d. A B 68. Which of the following substance is assayed by residual alkalimetric analysis? a. hydrochloric acid C. sodium hydroxide b. zinc oxide d. aspirin ACD ACD ACD
AB 66. The following drugs/substances is assay by direct acidimetry, EXCEPT: a. Phosphoric acid b. Soda ash c. Sodium hydroxide d. Sodium bicarbonate A B 67.Method used in the assay of ZnO a. Direct acidimetry c. Direct alkalimetry Residual acidimetry b. Residual alkalimetry d. A B 68. Which of the following substance is assayed by residual alkalimetric analysis? a. hydrochloric acid C. sodium hydroxide b. zinc oxide d. aspirin ACD ACD ACD
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:Multiple Choice
Each of the numbered items or incomplete statements is followed by answers or by completions of the statement.
Select the one lettered answer or completion that is best in each case. Write your answer before each number.
A B 66. The following drugs/substances is assay by direct acidimetry, EXCEPT:
C
Phosphoric acid
C.
a.
b.
Sodium hydroxide
Sodium bicarbonate
Soda ash
d.
A B 67.Method used in the assay of ZnO
Direct acidimetry
C.
a.
b.
Direct alkalimetry
Residual acidimetry
Residual alkalimetry
d.
A B 68. Which of the following substance is assayed by residual alkalimetric analysis?
a. hydrochloric acid
sodium hydroxide
C.
d.
b. zinc oxide
aspirin
UD
ACD
с
(UD
с
W
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