99% pure substances are called—

এই অধ্যায়ের আরও প্রশ্ন

• C-06-Q152The formula for percentage yield is—
• C-06-Q1532 g Mg yields 3.25 g MgO; theoretical = 3.33 g. Percent yield is approximately—
• C-06-Q154Heating 80 g gives 39 g CaO. Percent yield is approximately—
• C-06-Q155Reactants used in chemical reactions are usually—
• C-06-Q156The chemical name of blue vitriol is—
• C-06-Q157The formula of blue vitriol is—
• C-06-Q158Number of crystal water molecules in blue vitriol—
• C-06-Q159Color of blue vitriol—
• C-06-Q160After heating, blue vitriol turns—
• C-06-Q161