Quiz 17-October-2022
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The acid value is the number which expresses in milligrams the amount of potassium hydroxide necessary to neutralise the free acids present in 1 g of the substance. Here direct titration is done taking a neutralized mixture
Iodine value of an oil or fat is the number of grams of iodine, which is absorbed by 100 g of the substance (oil or fat) under described conditions. It can be determined by the following method.
The measurement of blood pressure is one among the vital signs recorded along with others namely heart rate, body temperature, respiratory rate and oxygen saturation. The normal Systolic blood pressure measured in adult is 120 millimeters of mercury and the normal Diastolic blood pressure is 80 millimeters of mercury.
The ball mill works on the principle of impact between the rapidly moving balls and the materials .Both the balls and the sample are enclosed in a hollow cylinder. At low speeds the ball rolled over each other and attrition takes place