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JEE Main 202127 AugustEvening Shift
Exam
JEE Main
Year
2021
Date
27 August
Shift
Evening Shift
Subject
Chemistry
Chapter
d and f Block Elements

JEE Main 2021 · 27 August · Evening Shift · Chemistry · d and f Block Elements

Potassium permanganate on heating at 513K gives a product which is :

Potassium permanganate on heating at 513K513K gives a product which is :

Options

  1. Aparamagnetic and colourless
  2. Bdiamagnetic and colourless
  3. Cdiamagnetic and green
  4. Dparamagnetic and green

Correct answer

D. paramagnetic and green

Step-by-step solution

2KMnO4→∆513KK2MnO4+MnO2(s)+O2PurpleGreen(Diamagnetic)(Paramagnetic)\begin{array}{ll}2{KMnO}_{4}\mathop{\to}_{∆}^{513K}{K}_{2}{MnO}_{4} + {MnO}_{2} ( s ) + {O}_{2} & \\ PurpleGreen \\ ( Diamagnetic ) ( Paramagnetic )\end{array}
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