Chemistry class 9th MCQs from unit:1,2&3 for SST BPS-16 Science Category SPSC preparation

[@mathematicswithchandni]

ethyl alcohol was prepared by Jabir bin hayan

[@mathsgurusagar1205]

According to the text book ethyl alcohol was prepared by Al Razi and according to google you are correct

[@foziakhokhar7137]

Hello .
Galat hen ap k mcqs.
Q9 : me hydrogen peroxide ka formula H2O2 he.
Fail karwana he kiya ap ko

[@mathsgurusagar1205]

dear first read the question then comment
H2O2 is just formula of Hydrogen Proxide