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JEE Advanced Model Paper 19 with solutions for online practice

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Paragraph for Question Nos. 13 to 15

Group II cations are detected in the following way.

Group II ppt. + yellow ammonium sulphide
→
50°−60°C,Δ
 Residue + Filtrate
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Question : 13 of 60
 
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The residue contains
Validate
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