Teacher-Water nu chemical formula kaho.
Student-H2MgCl NaCl HN03 CaCo3Ca (OH)2SnIN HgNiHCL(COOH)
Teacher-Aa shu chhe?
Student-Aa municipality nu water chhe.
Teacher-Water nu chemical formula kaho.
Student-H2MgCl NaCl HN03 CaCo3Ca (OH)2SnIN HgNiHCL(COOH)
Teacher-Aa shu chhe?
Student-Aa municipality nu water chhe.