Federal Board FBISE Nine Class Chemistry Past Papers annual 2019 old Paper Patterns and Important Questions can be checked from the Federal Board Past Papers. These past papers can be used in practice as well as to predict future exams in 2020 and 2021.
Chemistry ssc-1 section -a (marks 12) time allowed: 20 Minutes.
Q.1 circle the correct option i.e. A/B/C/D. each part carries one mark.
it the molar mass of a compund is 90 g/mole, the number of its moes containing 3.011 x 1022 molecules will be: