Jk Mock Module 6

1. What is the % purity of 0.1025 g Sodium chloride if it used 11.70 mL of 0.1155 N Silver Nitrate?

• a. 76.47%
• b. 54.35%
• c. 100.00%
• d. 57.12%

2. What indicator should used in Weak Acid + Strong Base?

• a. Methyl Red
• b. Methyl Orange
• c. Phenolphthalein
• d. Bromocresol green

3. What is the normality of Sulfuric acid if 0.5432 g Sodium Carbonate requires 21.5 mL of the standard solution?

• a. 0.0530 N
• b. 0.4785 N
• c. 0.5247 N
• d. 0.7892 N

4. Primary standard in the standardization of sodium methoxide.

• a. Benzoic acid
• b. Sodium bicarbonate
• c. Sodium carbonate
• d. Potassium hydrogen phthalate

5. A ligand that binds to a metal ion through only one atom.

• a. Monodentate
• b. Bidentate
• c. Tridentate
• d. Tetradentate
• e. A and B

6. Use of KI in the preparation of iodine solution.

• a. Solubilizing agent
• b. Change in pH of the solution
• c. As preservative
• d. All of the choices

7. What color of the complex results from reaction with ferrous phenanthroline?

• a. blue
• b. red
• c. pink
• d. violet

8. What indicator will be used in iodometric method of analysis?

• a. KMnO4
• b. Methyl red TS
• c. Methyl orange TS
• d. Starch TS

9. What is the indicator utilized in redox titration using KMnO4?

• a. Starch TS
• b. KMnO4
• c. Methyl red TS
• d. Methyl orange

10. Developed in 1883, this method of analysis remains as one of the accurate and widely used

• method for determining nitrogen in substance.
• a. Non-aqueous titrimetry
• b. Precipitation
• c. Redox itration
• d. Kjeldahl method