It would be the controlled variable, which is a baseline to compare your other variables too.
Hope this helps!
Why don’t you have friends?
Answer:
See explanation and image attached
Explanation:
The reaction is an E2 reaction. It is a synchronous reaction.
The base KOC(CH3)3 abstracts a proton as the bromide ion leaves in a single step.
This yields the product as shown in the image attached.
<span>for low-carbon steel oxygen is needed to oxidise carbon
-for titanium an atmosphere of argon is used because it is unreactive
-any oxygen would oxidise titanium</span>