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D and F Block Elements question

2025 · 23 Jan · Shift 2 · Q19
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  5. /2025 · 23 Jan · Shift 2 · Q19

D and F Block Elements question

2025 · 23 Jan · Shift 2 · Q19

JEE MainChemistryD and F Block ElementsMCQ+4 / −1
Consider the following reactions K2Cr2O7→−H2OKOH[ A]→−H2OH2SO4[ B]+K2SO4\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7 \xrightarrow[-\mathrm{H}_2 \mathrm{O}]{\mathrm{KOH}}[\mathrm{~A}] \xrightarrow[-\mathrm{H}_2 \mathrm{O}]{\mathrm{H}_2 \mathrm{SO}_4}[\mathrm{~B}]+\mathrm{K}_2 \mathrm{SO}_4K2​Cr2​O7​KOH−H2​O​[ A]H2​SO4​−H2​O​[ B]+K2​SO4​ The products [A][A][A] and [B][B][B], respectively are :
  1. A
    K2Cr(OH)6\mathrm{K}_2 \mathrm{Cr}(\mathrm{OH})_6K2​Cr(OH)6​ and Cr2O3\mathrm{Cr}_2 \mathrm{O}_3Cr2​O3​
  2. B
    K2CrO4\mathrm{K}_2 \mathrm{CrO}_4K2​CrO4​ and Cr2O3\mathrm{Cr}_2 \mathrm{O}_3Cr2​O3​
  3. C
    K2CrO4\mathrm{K}_2 \mathrm{CrO}_4K2​CrO4​ and K2Cr2O7\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7K2​Cr2​O7​
  4. D
    K2CrO4\mathrm{K}_2 \mathrm{CrO}_4K2​CrO4​ and CrO\mathrm{CrO}CrO
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