4/30/2023 0 Comments Pocket insecticides and pesticides![]() ![]() ![]() Then add 2-3 drops of ferric chloride solution and acidify with dilute HCl. To the filtrate addġ ml of freshly prepared ferrous sulphate solution and warm the contents. Break the tube and boil the contents of the china dish for about 5 Then add one of theĪbove residues from the china dish to this fusion tube and heat it till red hot.ĭrop the hot fusion tube in a china dish containing about 10 ml of distilled HeatĪ small piece of sodium in a fusion tube, till it melts. Collect theįiltrate in separate china dishes, Evaporate the alcohol by heating the chinaĭishes one by one over a water bath and let the residue dry in the oven. Vegetables and place the crushed fruits and vegetables in these beakers andĪdd 100 ml of alcohol to each of these. Take different kinds for each kind of fruits and Transfer the cut pieces of various fruits and vegetables into it Take different types of fruits and vegetables and cut them into small pieces Samples of various fruits and vegetables, alcohol, sodium metal, ferric chloride, ferrous sulphate crystals, distilled water and dil. Mortar and pestle, beakers, funnel, glass rod, filter paper china dish, water bath, tripod stand, fusion tube, knife, test tube. To study the presence of insecticides or pesticides (nitrogen containing) in various fruits and vegetables. Health officials all over the world to put a check over the use of insecticidesĪnd to search for non insecticidal means of pest control. Have aroused the concern of agricultural administrators, scientists and Insecticides residues in even raw samples of wheat, fish, meat, butter etc. Given to biodegradable insecticides like malathion. Inside the body they getĪccumulated and cause serious health problems. Who eat these polluted fruits and vegetables. From plants they transfer to animals, birds and human beings Non-biodegradable and remain penetrated as such into plants, fruits and Pesticides are proven to beĮffective against variety of insects, weeds and fungi and are respectivelyĬalled insecticides, herbicides and fungicides. All pesticides are poisonous chemicalsĪnd are used in small quantities with care. These are chemicals that are sprayed overĬrop to protect it from pests. Various crops to meet the demand of overgrowing population, achieved by In the past decade there has been a tremendous increase in the yields of Last but not least I thank my parents for their encouragement and support in my humble venture. I also take this opportunity to place on record my deep gratitude to LORD ALMIGHTY for the countless blessings showered on me while doing the work and to complete it. GEORGE for providing me all the facilities to finish the project on time. I place my sincere thanks to my chemistry teacher SUSAN JACOB for her guidance and advices to complete my work successfully. I certify that this project is done by him/ her with his/her Is in partial fulfillment of Chemistry Practical ExaminationsĪISSCE 2008. This is to certify that the project was done by ![]() AND PESTICIDES IB FRUITS AND VEGETABLES Name : ![]()
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