Q 1. A solution of a substance is used for whitewashing.
(i) Name the substance ‘X’ and write its formula
The substance ‘X’ is calcium oxide and its formula is CaO.
CBSE Board 2026: Class 10, 12 admit card out for private candidates; exam from February 17
CBSE launches psycho-social counselling services for Class 10, 12 students ahead of board exams 2026
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