Quarry tiles can give a house's floor an elegant look—until they get dim and dingy from absorbing years of dirt and grease. Even regularly washing tiles with household detergent simply isn't sufficient over time. That's when it's time to bring in the big occasional-cleaning gun: hydrochloric acid. Put on goggles, gloves, and clothes you don't care much about, and then fill a plastic bucket of warm water and add a drop or two of the acid. Then, choose a small area of floor to clean at a time, and work fast. Once you finish a section, rinse quickly with clean, warm water. The floor's color and sheen will return. If you can't find hydrochloric acid easily at a store near you, try asking at a drugstore for spirits of salts.

Question

This passage implies which of the following about hydrochloric acid?

AIt cannot be found at most drugstores.BIt should not be used alone to clean floors.CIt needs to be warmed before it's used.DIt should be used regularly to keep floors clean.

Answer 1

The correct implication from the passage about hydrochloric acid is:

A. It cannot be found at most drugstores.

This is suggested by the statement that mentions asking at a drugstore for spirits of salts if hydrochloric acid is not easily found, implying that it may not be readily available at drugstores. The other options do not accurately reflect the information provided in the passage.