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Answer (2) Magnesium
Sol. Magnesium is required to maintain the structure of ribosomes.
Which of the following elements is a constituent of biotin? (a) Magnesium (b) Calcium (c) Phosphorus (d) Sulphur
Which of the following oxide is amphoteric in nature? (1) CO2 (2) SnO2 (3) SiO2 (4) GeO2