Which of the following groups contains ONLY acidic substances?
(A) Antacid tablets, baking soda, laundry detergents
(B) Blood, oven cleaner, seawater
(C) Milk, tea, drain cleaner
(D) Vinegar, wine, aspirin - HSC - SSCE Chemistry - Question 3 - 2009 - Paper 1
Question 3
Which of the following groups contains ONLY acidic substances?
(A) Antacid tablets, baking soda, laundry detergents
(B) Blood, oven cleaner, seawater
(C) Milk, tea,... show full transcript
Worked Solution & Example Answer:Which of the following groups contains ONLY acidic substances?
(A) Antacid tablets, baking soda, laundry detergents
(B) Blood, oven cleaner, seawater
(C) Milk, tea, drain cleaner
(D) Vinegar, wine, aspirin - HSC - SSCE Chemistry - Question 3 - 2009 - Paper 1
Step 1
Identify acidic substances
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Answer
Acidic substances are those that have a pH less than 7. Common examples include vinegar, wine, and aspirin, which are known to contain acids such as acetic acid and salicylic acid.
Step 2
Evaluate each option
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Answer
(A) Antacid tablets, baking soda, and laundry detergents are generally basic substances.
(B) Blood is neutral (pH around 7.4), oven cleaner is basic, and seawater is typically slightly basic.
(C) Milk and tea are mildly acidic but drain cleaner is basic.
(D) Vinegar, wine, and aspirin are all acidic.
Step 3
Select the correct answer
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Answer
Based on the evaluation, option (D) contains only acidic substances.