The structure shown below is of which well-known drug molecule?

The $-As=As-$ linkage is present in which of the following medicines?

Which artificial sweetener contains chlorine,tastes like sucrose,and is stable at cooking temperatures?

Which of the following does not have antiseptic property?

Given below are two statements:
Statement $I:$ Aspirin and Paracetamol belong to the class of narcotic analgesics.
Statement $II:$ Morphine and Heroin are non-narcotic analgesics.
In the light of the above statements,choose the correct answer from the options given below.

Which of the following is used as a disinfectant?