Magnesium is used in

by

Magnesium is used in

[amp_mcq option1=”fireworks to make a bright white light” option2=”gemstones in jewellery” option3=”examination of alimentary canal of the patient” option4=”purification of water” correct=”option1″]

This question was previously asked in
UPSC CAPF – 2020
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Magnesium is used in fireworks to make a bright white light.
Magnesium metal burns rapidly in air with a brilliant white flame, producing magnesium oxide (MgO). This property makes it useful in fireworks, flares, and incendiary devices to create intense light.
B) Gemstones in jewellery are typically minerals like corundum (ruby, sapphire), diamond, beryl, etc., which do not primarily contain magnesium as a main component providing aesthetic value in this context. C) Examination of the alimentary canal often uses Barium sulfate (BaSO4) as a contrast medium in X-rays, not magnesium. D) While magnesium compounds can be involved in water treatment (e.g., precipitating impurities), magnesium metal itself is not typically used directly for purification of water.

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