12. s-Block Elements - JEE - CBSE Class XI - Revision Problems

http://www.adichemistry.com/jee/qb/s-block/1/q1.html

http://www.gneet.com/c12/f1/1.php

http://educationhints.blogspot.in/2013/09/mcqs-chapter-2-s-block-elements.html

http://www.docbrown.info/page07/sblock/sblockQmc.htm

http://pue.kar.nic.in/PUE/PDF_files/recogn/ipu_qb/34_ch10.pdf







http://www.nios.ac.in/media/documents/313courseE/L19.pdf