E-module: 6. Estimation of Constituents of Deodorant and Antiperspirants

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6. Estimation of Constituents of Deodorant and Antiperspirants

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1....………of the following halide is present in deodorants and Antiperspirants

1 point

a) Fluoride

b) Chloride

c) Bromide

d) Iodide

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2. In estimation of Chloride in deodorants and Antiperspirants………. is added for neutralization

1 point

a) 1:1 ammonium hydroxide

b) 1:1 Sodium hydroxide

c) 1:1 Calcium hydroxide

d) 1:1 Aluminum hydroxide

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3. In estimation of Chloride in deodorants and Antiperspirants 1:1 nitric acid is used ………….

1 point

a) Neutralization

b) Acidification

c) Basification

d) None of the above

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4. Chloride present in deodorants and Antiperspirants is precipitated by using ………….

1 point

a) 0.1 N Silver nitrate solution

b) 0.1 N Calcium nitrate solution

c) 0.1 N Potassium nitrate solution

d) 0.1 N Ammonium nitrate solution

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5. Estimation of Chloride from deodorants and Antiperspirants is done by weighing ………….

1 point

a) Silver chlorides precipitate

b) Calcium chlorides precipitate

c) Potassium chlorides precipitate

d) Ammonium chlorides precipitate

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6. …….. metal is estimated from deodorants and Antiperspirants

1 point

a) Zinc

b) Sodium

c) Iron

d) Nickel

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7. In estimation of Zinc from deodorants and Antiperspirants…… is used as a complexing agent

1 point

a) Quinoline

b) 8-hydroxyquinoline

c) 4-hydroxyquinoline

d) 2-hydroxyquinoline

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8. ……….. is used for neutralization in estimation of Zinc from deodorants and Antiperspirants

1 point

a) Ammonium hydroxides

b) Sodium hydroxide

c) Calcium hydroxide

d) Aluminum hydroxide

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9. During the process of estimation of Zinc from deodorants and Antiperspirants, after addition of ammonium acetate, the pH of reaction mixture is adjusted to ….........

1 point

a) 5.7 to 5.9

b) 4.7 to 4.9

c) 3.7 to 3.9

d) 2.7 to 2.9

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10. In estimation of Zinc from deodorants and Antiperspirants, the obtained precipitate of zinc complex is dried for 2 hours at…….

1 point

a) 90-100 oC

b) 200-250 oC

c) 130-140 oC

d) 320-350 oC

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