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D and F Block Elements question

2019 · 11 Jan · Shift 2 · Q16
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D and F Block Elements question

2019 · 11 Jan · Shift 2 · Q16

JEE MainChemistryD and F Block ElementsMCQ+4 / −1
A‾  →4KOH,O2  2B‾(Green)  +  2H2O3B‾  →4HCl  2C‾(Purple)  +  MnO2+2H2O2C‾  →H2O.KI  2A‾(Purple)  +  2KOH  +  D‾\underline A \,\,\xrightarrow{4KOH,{O_2}} \,\,\mathop {2\underline B }\limits_{\left( {Green} \right)} \,\, + \,\,2{H_2}O3\underline B \,\,\xrightarrow{4HCl} \,\,\mathop {2\underline C }\limits_{\left( {Purple} \right)} \,\, + \,\,Mn{O_2} + 2{H_2}O2\underline C \,\,\xrightarrow{{H_2}O.KI} \,\,\mathop {2\underline A }\limits_{\left( {Purple} \right)} \,\, + \,\,2KOH\,\, + \,\,\underline DA​4KOH,O2​​(Green)2B​​+2H2​O3B​4HCl​(Purple)2C​​+MnO2​+2H2​O2C​H2​O.KI​(Purple)2A​​+2KOH+D​ In the above sequence of reactions, A‾{\underline A }A​ and D‾{\underline D }D​, respectively, are :
  1. A
    KlKlKl and KMnO4KMnO_4KMnO4​
  2. B
    KlKlKl and K2MnO4K_2MnO_4K2​MnO4​
  3. C
    KlO3KlO_3KlO3​ and MnO2MnO_2MnO2​
  4. D
    MnO2MnO_2MnO2​ and KlO3KlO_3KlO3​
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