Posted inChemistry-9 Class 9 9th class Chemistry unit 1.5, Fundamentals of chemistry, compounds کمپاؤنڈ Posted by admin January 7, 2020No Comments admin View All Posts Post navigation Previous Post 9th class Chemistry unit 1.4, Fundamentals of chemistry, Valency ویلنسی کیمسٹری میںNext Post9th class Chemistry unit 1.6, Fundamentals of chemistry, mixture مکسچر