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Which of the following lists contains ONLY basic substances? (A) Oven cleaner, urine, vinegar (B) Lemonade, drain cleaner, blood (C) Baking soda, ammonia, sea water (D) Antacid, dishwashing detergent, lemon juice - HSC - SSCE Chemistry - Question 3 - 2011 - Paper 1
Question 3
Which of the following lists contains ONLY basic substances? (A) Oven cleaner, urine, vinegar (B) Lemonade, drain cleaner, blood (C) Baking soda, ammonia, sea wat... show full transcript
Worked Solution & Example Answer:Which of the following lists contains ONLY basic substances? (A) Oven cleaner, urine, vinegar (B) Lemonade, drain cleaner, blood (C) Baking soda, ammonia, sea water (D) Antacid, dishwashing detergent, lemon juice - HSC - SSCE Chemistry - Question 3 - 2011 - Paper 1
Step 1
Identify the basic substances in each option
Answer
To determine which list contains only basic substances, we need to evaluate each option based on the properties of the substances listed:
- Option (A): Oven cleaner - basic; Urine - slightly acidic but can be basic depending on diet; Vinegar - acidic.
- Option (B): Lemonade - acidic; Drain cleaner - typically basic; Blood - neutral to slightly basic.
- Option (C): Baking soda - basic; Ammonia - basic; Sea water - contains salts that can be neutral, but often slightly basic due to the presence of bicarbonates.
- Option (D): Antacid - basic; Dishwashing detergent - usually basic; Lemon juice - acidic.
From these evaluations, only Option (C) comprises predominantly basic substances.
Step 2