Answer:
Mg
Explanation:
Mg forms 2+ ions and mgcl2 has a melting point over 700°C I believe.
KBr + Fs won't make a reaction because KBr is stable with an octet.
Bi+O2 probably won't occur because the O2 has a stable octet as well/
Answer: Option (b) is the correct answer.
Explanation:
Chemical formula of citric acid is
.
It is acidic in nature and therefore, it is used to add tartness or sour flavor to the food like jams, jellies, candies etc.
It is also used as a preservative and thus it helps to preserve various food items for a longer period of time.
Im pretty sure its D. I would wait for others though.