<b style="color: #565656; font-family: "Trebuchet MS", Trebuchet, Verdana, sans-serif; text-align: center;"> Answer Key STD-X</b> English Hindi Biology Chemistry Physics Mathematics Social Science <b> Answer Key STD-IX</b> English Hindi Biology Chemistry Physics Mathematics Social Science ART/PET/WE <b> Answer Key STD-VIII</b> English Hindi Biology Chemistry Physics Mathematics Social Science ART/PET/WE