Magnesium (Mg) is a key component of chlorophyll, which traps sunlight energy in photosynthesis (A-3). Calcium (Ca) ions play a vital role in muscle contraction (B-4). Strontium (Sr) salts are used to impart a red colour to flames, such as in fireworks (C-1). Barium sulfate (BaSO4) is an opaque compound used in medicine as a contrast agent (barium meal) to examine the alimentary canal of a patient (D-2).
Match List-I with List-II and select the correct answer using the code given below the Lists : List-I List-II (Ele‐ (Property/Use) ment)
Asked in UPSC CDS 2 2016 · Topic: Inorganic Chemistry (Chemistry of Main Group Elements (s-block and p-block))
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