Which of the following element is present in an antiperspirant deodorant?

Aluminium

The correct answer is option 1. Aluminium.

Of the listed elements, aluminum is commonly found in antiperspirant deodorants.

Aluminum-based compounds, like aluminum chlorohydrate and aluminum zirconium tetrachlorohydrex gly, are the active ingredients in most antiperspirants. These compounds work by temporarily blocking sweat glands, reducing sweat production.

It's important to note that while aluminum is widely used in antiperspirants, there's ongoing research about its potential health effects. If you have any concerns, it's always best to consult with a healthcare professional.