While diluting some concentrated hcl, a student accidentally got some of the acid on his/her bare hands. what is the appropriate response?

Chemicals like HCL should be immediately washed off. HCL is caustic to the skin and will cause the skin to dissolve. While dilute HCL solutions found in secondary school classrooms are unlikely to cause immediate burns, hydrochloric acid is extremely acidic and will leave permanent scars before very long

The student should rinse the affected area under warm running tap water.

Concentrated HCl is a highly acidic chemical which can be corrosive to skin and eyes and they may attack and destroy living tissues.

To prevent the occurrence of this situation, students should wear protective gloves and handle concentrated acids/alkalis with tongs.