Chemistry, asked by archanatalokar555, 22 days ago

MCQ paper on emulsion​

Answers

Answered by Rimjhim09
2

Answer:

Question 1

30 seconds

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Q. What type of emulsion is a w/o/w emulsion?

answer choices

Primary emulsion

Microemulsion

Multiple emulsion

Monoemulsion

Question 2

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Q. The purpose of an emulsifier is to ___________ .

answer choices

Decrease surface area in a suspension

Reduce the interfacial tension between immiscible phase

Minimize the size of globules

Improve medication taste

Question 3

120 seconds

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Q. What is the HLBmixture for emulsion consisting of 30% Span 80 (HLB = 4.3) and 70% Tween 80 (HLB = 15)?

answer choices

1.181.8118.1111.8

Question 4

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Q. A substance that allows oil and water to mix or emulsify is known as ________ .

answer choices

Antioxidant

Emulsifier/Surfactant

Preservative

Colouring agent

Question 5

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Q. The tail of a surfactant molecule is oil-loving or known as ________?

answer choices

hydrophile

lipophobic

lipophilic

hydrophilic

Question 6

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Q. Oil and Water is an example of a(n)...

answer choices

Suspension

Emulsion

Colloid

Solution

Question 7

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Q. Ratio of oily phase to aqueous phase to gum of Fixed oil (eg. Castor Oil BP)

answer choices

4 - 3 - 1

4 - 2 - 2

4 - 1 - 2

4 - 2 - 1

Question 8

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Q. Ratio of oily phase to aqueous phase to gum of Volatile oil (eg. Cinnamon Oil BP)

answer choices

2 - 2 - 1

2 - 2 - 2

2 - 1 - 2

2 - 1 - 1

Question 9

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Q. The condition labelled as 'C' indicates

answer choices

Breaking

Sedimentation

Creaming

Flocculation

Question 10

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Q. Above is one of test done to determine Types of Emulsion. What is the name of the test?

answer choices

Cobalt suphate test

Cobalt chloride test

Cobalt oxide test

cobalt blue test

Question 11

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Q. Gelatin and Wool fat are examples of Emulsifying Agent originated from vegetable source.

answer choices

TRUE

FALSE

Question 12

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Q. Breaking of an emulsion can be reversible by vigorous agitation

answer choices

TRUE

FALSE

Question 13

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Q. __________ is a procedure when oil is triturated with the gum before adding in water for preparing Primary Emulsion.

answer choices

English method

Wet Gum method

Trituration method

Continental method

Question 14

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Q. The result observation labelled as "B" indicates __________ emulsion

answer choices

Water-in-oil

Oil-in-water

W-o-W

O-w-O

Question 15

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Q. Secondary Emulsion (multiple emulsion) can be used to increase the stability of the stability of active compound.

answer choices

TRUE

FALSE

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