PACOP BABY - Sheet1

Question 1

1. The upper oxidizing zone of a nonluminous Bunsen flame consists largely of:

A. Incandescent carbon
B. A mixture of reducing gases and oxygen
C. A large excess of oxygen
D. Nitrogen
E. Unburnt gas

Answer 1

C. A large excess of oxygen

Question 2

2. Less volatile substances may be detected in: A. Lower oxidizing zone B. Upper oxidizing zone C. Upper reducing zone D. Lower reducing zone E. Hottest portion of the flame

Answer 2

E. Hottest portion of the flame

Question 3

3. Sb imparts ______ color to the nonluminous Bunsen flame A. Crimson B. Yellowish green C. Green D. Blue E. Brick red

Answer 3

D. Blue

Question 4

4. Tl imparts ______ color to the nonluminous Bunsen flame A. Crimson B. Yellowish green C. Green D. Blue E. Brick red

Answer 4

C. Green

Question 5

5. In the micro-scale of qualitative analysis, the quantity of a substance employed is reduced by a factor of: A. 0.1 B. 1 C. 10 D. 100 E. 1000

Answer 5

D. 100