Chemistry - Complete Pblock- Question with Solution | TestHub

$\mathrm{KI}+{\mathrm{MnO}}_2+$ conc. ${\mathrm{H}}_2{\mathrm{SO}}_4\stackrel{\Delta }{\to }$

$\mathrm{NaCl}+{\mathrm{MnO}}_2+$ conc. ${\mathrm{H}}_2{\mathrm{SO}}_4\stackrel{\Delta }{\to }$

$\mathrm{NaCl}+$ conc. ${\mathrm{H}}_2{\mathrm{SO}}_4\stackrel{\Delta }{\to }$ ?

$\mathrm{NaBr}+$ conc. ${\mathrm{H}}_2{\mathrm{SO}}_4\stackrel{\Delta }{\to }$ ?