question_answer

Complete the following paragraph with appropriate words. Take 2 ml of \[\underline{\,\,\,\,a\,\,\,\,}\] in a test tube. Add a little of dilute \[\underline{\,\,\,\,b\,\,\,\,}\] solution. Now add 2 or 3 drops of   \[\underline{\,\,\,\,c\,\,\,\,}\] solution and shake the test tube. A \[\underline{\,\,\,\,d\,\,\,\,}\]colour appears in the solution. This shows that \[\underline{\,\,\,\,e\,\,\,\,}\] contains proteins.

A) a-butter, b-sulphuric   acid, c-sodium hydroxide, d-green, e-butter

B) a-milk, b-sodium hydroxide, c-copper sulphate, d-violet, e-milk

C) a-milk,   b-sodium   chloride, c-sodium hydroxide, d- blue, e- milk

D) a- potato, b-sodium hydroxide, c-iodine, d- red, e- potato

E) None of these