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Practicing real exam questions helps you understand the exam pattern, improve accuracy, and boost your JEE score. Perfect for students aiming for top ranks in IIT-JEE.","tags","jee main joint entrance examination india","version","vip","location",{"_391":392,"_393":394},"type","Point","coordinates",[395,396],79.0888,21.1466,"in","priority",11,"createdOn",1756744302186,"updatedOn","questionsCount",24748,"courseCount",9,"examKey","questionData",{"_369":410,"_411":412,"_413":414,"_278":416,"_417":418,"_263":370,"_419":420,"_421":422,"_110":427},"KeJ0y0HmvlW1QT4LZ92BA5i3xoPqIr","q","The formula of the purple colour formed in Laissaigne's test for sulphur using sodium nitroprusside is :","ans",[415],3,"2022 - 28th June Morning Shift","course","chemistry","exp","$\\left.\\mathrm{S}^{2-}+\\left[\\mathrm{Fe}(\\mathrm{CN})_{5} \\mathrm{NO}\\right)\\right]^{2-} \\rightarrow\\left[\\mathrm{Fe}(\\mathrm{CN})_{5}(\\mathrm{NOS})\\right]^{4-}$","opts",[423,424,425,426],"NaFe[Fe(CN)₆]","Na[Cr(NH₃)₂(NCS)₄]","Na₂[Fe(CN)₅(NO)]","Na₄[Fe(CN)₅(NOS)]",13,"13","initComment","initReply","actionData","errors"]

JEE MAIN - Chemistry (2022 - 28th June Morning Shift - No. 13)

Explanation

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