Dynamic dependent dropdowns on Google Form

Question

I need to add the following functionality on a google form -

I need to have two dropdowns on the form-

Dropdown1 values are being populated from the google shee

Answer 1

Answer:

Unfortunately, this is not possible using Google Forms.

Explanation:

In order to change the contents of later dropdowns based on the selected answer in a previous question, direct access to the browser session must be retrieved by Google's server before form submission. This isn't done.

Until a form has been submitted by the user, giving explicit permission to send the answers they have provided, the answers are not communicated to Google's servers and as such later questions can not change based on previous answers. Implementing this would be a privacy issue so I can not forsee Google creating this option in the future either.