Quiz for Detergents

Q1: What is the primary difference between soaps and detergents?

A. Soaps are natural, detergents are synthetic B. Soaps are synthetic, detergents are natural C. Both are natural D. Both are synthetic

Q2: Which of the following is an anionic detergent?

A. Sodium lauryl sulfate B. Cetrimide C. Benzalkonium chloride D. Ammonium lauryl sulfate

Q3: Detergents are preferred over soaps in hard water because:

A. Detergents form scum with calcium B. Soaps form scum with calcium C. Detergents are biodegradable D. Soaps are synthetic

Q4: Which of the following is a cationic detergent?

A. Sodium lauryl sulfate B. Cetrimide C. Sodium stearate D. Potassium palmitate

Q5: The cleaning action of detergents is due to:

A. Formation of micelles B. Lowering pH C. Increasing surface tension D. Precipitation

Q6: Which detergent type is mostly biodegradable?

A. Anionic B. Cationic C. Non-ionic D. All of the above

Q7: Which of these is a non-ionic detergent?

A. Triton X-100 B. Sodium lauryl sulfate C. Cetrimide D. Ammonium lauryl sulfate

Q8: Which part of detergent molecule is hydrophobic?

A. Tail B. Head C. Both head and tail D. Neither

Q9: Detergents work effectively in:

A. Hard water only B. Soft water only C. Both hard and soft water D. Neither

Q10: Which of the following is a drawback of detergents?

A. Non-biodegradability B. High cost C. Low cleaning power D. Scum formation

Q11: The hydrophilic part of detergent molecule is:

A. Tail B. Head C. Non-polar group D. Alkyl chain

Q12: Which detergent is used as an antiseptic in mouthwashes?

A. Sodium lauryl sulfate B. Cetrimide C. Triton X-100 D. Soap

Q13: Detergents are effective in cleaning because they:

A. Reduce surface tension of water B. Increase surface tension C. React with water D. React with dirt chemically

Q14: Which synthetic detergent is commonly used in shampoos?

A. Sodium stearate B. Sodium lauryl ether sulfate C. Potassium palmitate D. Calcium oleate

Q15: Detergents are made by:

A. Neutralization of fatty acids B. Sulfonation of hydrocarbons C. Esterification of acids D. Oxidation of alcohols

Q16: Which detergent is used in antiseptic creams?

A. Sodium lauryl sulfate B. Cetrimide C. Soap D. Triton X-100

Q17: Which of the following is NOT a detergent?

A. Sodium lauryl sulfate B. Potassium palmitate C. Cetrimide D. Triton X-100

Q18: The term “micelle” refers to:

A. Aggregates of detergent molecules B. Single detergent molecules C. Water molecules D. Dirt particles

Q19: Which detergent is best for removing oily stains?

A. Anionic detergents B. Cationic detergents C. Non-ionic detergents D. All of these

Q20: Detergents can be classified into how many types based on the charge on the head group?

A. Two B. Three C. Four D. Five