Subject :NSO Class : Class 7
Priya wants to test presence of proteins in some food items. She took a cup of milk, some groundnuts and a raw potato. She made a paste of raw potato and powder of groundnuts by mashing and grinding them. She put equal quantities of three food items in three different test tubes and added, using a dropper ten drops of water, two drops of copper sulphate solution and ten drops of caustic soda solution to each test tube. She shook well all the three test tubes and let them stand for a few minutes.
What result would she get for the test she performed ?
Ans 1: (Master Answer)
Class : Class 1
The correct answer is C.