KVV E-Modules - Lecture 5.1: Understanding of proof spirit: Concept, Definition and its significance

Quadrant -I (Video)

Video lecture explaining the concept and definition of proof spirit in simple terms so the students can clearly understand its basis and enhancing

Quadrant - II (Study Material)

1. Understanding of proof spirit: Concept, Definition and its significance notes

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Quadrant - III (Assignments)

1. Understanding of proof spirit: Concept, Definition and its significance Assignment

Discuss in detail concept of Proof spirit with its significance.

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Quadrant - IV (MCQs)

1. What is the definition of 100 proof spirit in terms of alcohol content?

A: 50% v/v alcohol B: 57.1% v/v alcohol C: 75% v/v alcohol D: 100% v/v alcohol

What is the formula to calculate proof strength from alcohol percentage (v/v)?

A: Alcohol % × 2 B: Alcohol % ÷ 1.753 C: Alcohol % × 1.753 D: Alcohol % × 0.571

3. If an alcohol solution is 40% v/v, what is its proof strength?

A: 50.12 proof B: 70.12 proof C: 80.50 proof D: 90.20 proof

4. What does "Over Proof (O/P)" mean in proof strength calculations?

A: Alcohol is weaker than 100 proof spirit B: Alcohol is stronger than 100 proof spirit C: Alcohol is exactly 100 proof spirit D: Alcohol contains no water

5. How is "Under Proof (U/P)" defined?

A: Alcohol stronger than 100 proof spirit B: Alcohol with no water content C: Alcohol weaker than 100 proof spirit D: Alcohol exactly 100 proof spirit

6. Proof Strength is expressed in:

A: % v/v B: Degrees (° O/P or ° U/P) C: Grams/Litre D: mg/ml

7. If an alcoholic sample is labeled as 56° U/P, it means:

A: Its strength is 56 degrees stronger than 100 Proof Spirit B: Its strength is equal to 100 Proof Spirit C: Its strength is stronger than 57.1% v/v D: Its strength is weaker than 100 Proof Spirit by 56 degrees

8.The specific gravity of 100 Proof Spirit in India/Great Britain is:

A: 0.91976 B: 1.00000 C: 0.87654 D: 0.95000

9.Why is the concept of Proof Spirit significant in pharmaceutical calculations?

A: or labeling pH of formulations B: For improving solubility of drugs C: For accurate dosing of drug D: For quality control and excise duty calculation in alcohol-based products

10. An alcoholic solution contains 30% v/v alcohol. What is its Proof Spirit in India?

A: 45.2 B: 52.6 C: 60.0 D: 55.3

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1. Understanding of proof spirit: Concept, Definition and its significance

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2. Understanding of proof spirit: Concept, Definition and its significance Assignment

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3. Understanding of proof spirit: Concept, Definition and its significance Assignment

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