Chemistry, asked by darwincharles9773, 8 days ago

A double salt contains fourth period alkali metal (A) on heating at 500k gives (B). aques solution of (B) gives white precipitate with BaCl2 and gives a red colour compound with alizarin. Identify A and B.

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Answered by Itscutekanak

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A double salt which contains fourth period alkali meal (A) is potash alum K2SO4 . Al2(SO4)3 . 24H2O 2. On heating potash alum (A) 500 k give anhydrous potash alum (or) burnt alum (B). 3. Aqueous solution of burnt alum, has sulphates ion, potassium ion and aluminium ion. Sulphate ion reacts with BaCl2 to form white precipitate of Barium Sulphate (SO4)2 + BaCl2 → BaSO4 + 2Cl- Aluminium ion reacts with alizarin solution to give a red colour compoundRead more on Sarthaks.com - https://www.sarthaks.com/868084/a-double-salt-which-contains-fourth-period-alkali-metal

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A double salt contains fourth period alkali metal (A) on heating at 500k gives (B). aques solution of (B) gives white precipitate with BaCl2 and gives a red colour compound with alizarin. Identify A and B.​

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A double salt contains fourth period alkali metal (A) on heating at 500k gives (B). aques solution of (B) gives white precipitate with BaCl2 and gives a red colour compound with alizarin. Identify A and B.