Bleaching powder is prepared by passing $\mathrm{Cl_2}$ gas through—

Question

Accepted Answer

$\mathrm{Ca(OH)_2}$ at $40^\circ\mathrm{C}$

Answer

$\mathrm{NaOH}$ at $100^\circ\mathrm{C}$

Answer

$\mathrm{NH_4OH}$ at $25^\circ\mathrm{C}$

Answer

$\mathrm{KOH}$ at $0^\circ\mathrm{C}$

Bleaching powder is prepared by passing Cl2\mathrm{Cl_2}Cl2​ gas through—