00510nam a22001577a 4500 0 0 0 0 RIU RIU 2012-07-18 Purchased: Alvi Books Islamabad 325.00 0 540 QAD 3891 2012-07-18 00:00:00 1 2019-02-21 BK 2393 2393 (pbk) 540 QAD Qadri, Dildar Ahmed Understanding chemistry 2 Karachi Rehbar Publishers 2002 320 p. : ill. ; 24 cm. Understanding chemistry 2 for class XII Chemistry Classification of elements s-block elements p-block elements d-block elements Organic chemistry Hydrogen FEAS BK