Question

Mark has two lemons. He puts one lemon in distilled water and one lemon in water containing excess salt. What would he observe?

• A. Both the lemons will sink
• B. Both the lemons will float
• C. Lemon in distilled water will float
• D. Lemon in salt water will float

Answer 1

The correct option is D Lemon in salt water will float

Adding a lot of salt to water increases its density. Therefore, the density of salty water is more than that of distilled water.
Hence, lemon which is put in salty water will float as the density of lemon is lesser than salt water.
Lemon which is put in distilled water will sink as the density of lemon is more than distilled water.