Question

1. A dilute solution of iodine can be prepared by adding a few drops of _ to a test tube half filled with water. 2. Copper sulphate solution can be prepared by dissolving 2 gram of _ in 100 millilitre of water. 3. 10 gram of _ dissolved in 100 ML of water makes required solution of caustic soda. 4. Can we easily test if a food item contains Starch? ( Don't want answers from internet.)

Answer 1

1)A dilute solution of iodine can be prepared by adding a few drops of IODINE to a test tube half filled with water

2)Copper sulphate solution can be prepared by dissolving 2 gram of COPPER in 100 millilitre of wateR

3) 10 gram of SODA dissolved in 100 ML of water makes required solution of caustic soda

4) The main carbohydrates found in our food are in the form of starch and sugars. We can easily test if a food item contains starch. ... Observe the colour of the food item. Blue-black colour indicates the presence of starch in the tested food item.

PLS MARK BRAINLIEST

Answer 2

Yes when we drop brown liquid of iodine on the skin of potato ,it will turn blue which shows the presence of starch.

Mark it as the brainliest answer please.