Chemistry - Salt Analysis Question with Solution | TestHub
ChemistrySalt AnalysisTEST OF CATIONS, Group 3, 4, 5, 6, 0Medium2 minQB
ChemistryMediumsingle choice
which of the following statements(s) is/are correct about 'X'
Options:
Answer:
D
Solution:
The salt X is Soda Alum (Na₂SO₄ ⋅ Al₂(SO₄)₃ ⋅ 24H₂O). The golden yellow color in the flame test specifically identifies the presence of Sodium (Na⁺) ions. On heating, alums lose their water of crystallization and swell significantly, eventually forming a porous, amorphous powder. Since alums are double salts and contain 24 molecules of water of crystallization by definition, all given statements (A, B, and C) are correct. Therefore, the answer is (D) All of these.
Stream:JEESubject:ChemistryTopic:Salt AnalysisSubtopic:TEST OF CATIONS, Group 3, 4, 5, 6, 0
⏱ 2mℹ️ Source: QB
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