date:Sep 07, 2012
to it. The contents are mixed by shaking the test tube gently. After about five minutes, if upon examination, it is observed that the mixture has turned red, the curd contains vanaspati.
Rabri
A teaspoon of rabri is taken in a test tube and about 3ml of hydrochloric acid and 3ml of distilled water are added to it. The contents are stirred with a glass rod, which is then removed. If, upon examination, the rod is found to have fine fibres, it shows the presence of blotting paper in rabri.
Khoa a