Answer: B) He should tell his teacher about the spill and rinse his hand in the sink.
Explanation:
While performing an experiment or attending a lesson in a laboratory special safety norms needs to be followed by students as well as by the teachers. It is advice that experiments in the laboratory should be performed under the supervision of the teacher or lab staff who could take initiatives during chemical and fire hazards.
According to the given situation, B) He should tell his teacher about the spill and rinse his hand in the sink. is the correct option because of the fact that the unknown liquid could be strong acid or base or any other harmful chemical which either sooner or later can produce a burning sensation or itching. Teacher should be informed first instead of fellow students because teacher could give direction if any injury is likely to happen.
It is advised that while conducting an experiment in a laboratory, always perform it under the supervision of your teacher.
When Hiro accidentally touches the liquid then he should immediately tell his teacher about it so that timely precaution can be taken to avoid any damage or side effect. Also, Hiro should rinse his hand in the sink because it will neutralize or decrease the effect of spilled liquid on his skin.
Thus, we can conclude that he should tell his teacher about the spill and rinse his hand in the sink.
