Four food tests were performed separately on four white powders, A, B, C and D. The table shows the outcomes. Which powder contains a carbohydrate, a fat and a protein?
- ABenedict’s test: blue colour; biuret test: violet colour; ethanol emulsion test: milky; iodine solution test: blue-black colour
- BBenedict’s test: orange colour; biuret test: blue colour; ethanol emulsion test: milky; iodine solution test: blue-black colour
- CBenedict’s test: red colour; biuret test: violet colour; ethanol emulsion test: clear; iodine solution test: yellow colour
- DBenedict’s test: green colour; biuret test: blue colour; ethanol emulsion test: clear; iodine solution test: yellow colour