OT sa De, Objective (भोजन पर लार के प्रभाव का अवलोकन करना।) Required Materials : Boiled rice, lodine solution, Two test tubes, Dropper. Process : 1. Label the test tubes as 'A' and 'B'. 2. Put one spoon of boiled rice in the test tube 'A'. 3. Now chew (zahl) one spoon of boiled rice for 2 or 3 minutes and put it in the test tube 'B'. 4. Add 2 or 3 drops of iodine solution in both test tubes and shake by putting thumb over it. 5. Observe change in the colour of the boiled rice in both test tubes. ail W. Test Tube 'B' Test Tube 'A' Observation- I. The colour of boiled rice in test tube 'A' The colour of chewed boiled rice in test tube 'B II.
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Required Materials : Boiled rice, lodine solution, Two test tubes, Dropper. Process : 1. Now chew (zahl) one spoon of boiled rice for 2 or 3 minutes and put it in the test tube 'B'. ...4 hours a
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