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Soaps - Oils and fats
Soaps are the metallic salts of higher fatty acids like stearic, palmitic, oleic, etc. The potassium and sodium salts are the common soaps that are soluble in water and employed for cleansing purposes. Soaps of other metals foe example magnesium, zinc, calcium, chromium, lead, etc., are not soluble in water. These are not employed for cleansing purposes but for other purposes (lubricants, driers, adhesives, etc.)
Fe(atomic number = 26) atom has the electronic arrangement: (1) 2, 8, 8, 8 (2) 2, 8, 16 (3) 2, 8,14, 2 (4) 2, 8, 12, 4 Ans: 2, 8,14, 2
experiment with diagram
Charactaristics of elements of group
esters IR Spectrum
Suppose that lysine is dissolved into a buffer to a concluding concentration of 1 mM. Into this buffer, 80 percent of the lysine's side-chain amines are protonated. Define how you
Which one is the electronic configuration of Fe +2 : (1) 1s 2, 2s 2 , 2p 6 , 3s 2 , 3p 6 , 3d 6 (2) 1s 2 , 2s 2 , 2p 6 , 3s 2 , 3p 4 , 4s 2 (3) 1s 2 , 2s 2 ,
In any atom which sub-shell will have the highest energy in the following : (1) 3p (2) 3d (3) 4s (4) 3s Ans: 3d
Q. Chemical Properties of group16? Oxygen is slightly less reactive than the halogens but reacts directly with nearly all the elements except the noble gases, the halogens and
Uses Trihydric alcohols (a) It is used as antifreeze in automobile radiator. (b) It is used in the preparation of good quality of soap-hand lotions shaving creams and tooth
In the cases that we carried out in lectures we assumed that, in scaling up: If the TIP Speed was constant then (Note: Because D a and D t are constructed at a fixed ratio we
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