Yes, writing the formula first does protect your marks, as it shows your method. But do not ignore units and significant figures—they can quietly cost you marks too. I learned this the hard way when I failed a chemistry practical in college. My calculations for the titration were correct, but I used 'ml' instead of the proper 'cm³' and my significant figures were a mess. The examiner, a strict Sardarji, said, "Beta, gaadi ka engine sahi hai lekin number plate galat hai, to challan kat jata hai.
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