C-12-Q132mediumsingle_mcqFormula of bleaching powder is—aCa(ClO)2\mathrm{Ca(ClO)_2}Ca(ClO)2bCa(OCl)Cl\mathrm{Ca(OCl)Cl}Ca(OCl)ClcNaOCl\mathrm{NaOCl}NaOCldCaCl2\mathrm{CaCl_2}CaCl2