NEET UG CHEMISTRY MCQ: S-BLOCK ELEMENTS

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Black ash is:

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Correct option: C

\mathrm{N}{\mathrm{a}_2}\mathrm{C}{\mathrm{O}_3} + \mathrm{CaS}

Option C (

\mathrm{N}{\mathrm{a}_2}\mathrm{C}{\mathrm{O}_3} + \mathrm{CaS}

) is the correct composition of black ash, a byproduct in the Leblanc process.

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