detection of argemone oil in cooking oil

Argemone oil is a highly toxic oil which when consumed by man can cause a disease called dropsy. To test the presence of this oil in cooking oil, take the sample to be tested in a test tube and add some concentrated nitric acid to it. Sha..

Paula cooked 5 dishes for dinner. She spent 0.25 liters of oil in preparing each dish. Which operation is used to find the total quantity of oil used by her? => subtraction or division or multiplication or addition..

The deliberate contamination of food materials with low quality, cheap, non-edible or toxic substances is called food adulteration. The substance which degrades (lowers) the quality of a food is called an adulterant. Adulteration results in two disadvantages for the consumer. 1. Overpaying for subs..

Food material Adulterant Cereals such as wheat, rice Mud,grit,soapstone Dal Kesari dal,metanil yellow(a dye) Haldi(turmeric)powder lead chromate Dhania powder Powdered cowdung or horsedung, starch Black pepper Dried papaya seeds Chilli powder Saw dust, brick powder ..

Question: How are the forests useful to mankind? Answer: Forests are useful to us for the following reasons: Forests provide timber for buildings and furniture, and cane for cane-furniture Forests provide raw materials for the paper industry, board industry, plywood industry etc. ..

Question: What direct value does a forest have for man? Answer: Forests contribute to the economic development of our country by providing goods and services to people and industry. They are intimately linked with our culture and civilization. Forests are useful to humans for the followi..

Introduction - Man's quest for sources of energy is inexhaustible. Early man depended mainly on muscular energy and later began to use wind and flowing water as sources of energy. He learned the art of making and controlling fire. Fire became his source of light at night. He used fire for warmth an..

Fuels come in many varieties such as wood, cow dung, charcoal, kerosine and Liquified Petroleum Gas (LPG). These are used for cooking purposes. Coal, fuel, oil and natural gas are used in industries. Petrol and diesel are used in automobiles and locomotives. Specially prepared ..

. Coke is an important reducing agent is another by-product containing 98% carbon. Petroleum is often referred to as liquid gold, due to its importance as a fuel in transportation (Petrol, Diesel, kerosene, gas oil, fuel oil) and as a source of over hundred and fifty important p..