Percentage Composition

JEE Main Chemistry · Some Basic Concepts of Chemistry · 3 questions, latest first

• Thyroxine, the hormone has given below structure The percentage of iodine in thyroxine is ____ \%. (nearest integer) (Given molar…20257 April, Shift 1 · Q75
• Fortification of food with iron is done using FeSO_4.7 H_2 O. The mass in grams of the FeSO_4. 7 H_2 O required to achieve 12 ppm…20254 April, Shift 1 · Q71
• Uracil is a base present in RNA with the following structure. \% of N in uracil is ____ Given: Molar mass N=14 g mol^-1; O=16 g…202324 January, Shift 1 · Q59