Even though this is largely common sense, I thought it'd be useful for those people who are having difficulties with the last ten problems in the chemistry paper 1.
These rules should be memorized, as they will save you a lot of time and frustration!
->If the first choice is obviously incorrect, the answer is automatically C
->If the second choice is obviously incorrect, the answer is automatically D.
->If the third choice is incorrect AND the second choice is correct, the answer is B.
These rules should be memorized, as they will save you a lot of time and frustration!