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Lipids
Lipids are constituents of plants and tissues that are insoluble in water although soluble in organic solvents like ether, carbon tetrachloride, chloroform, or benzene. They added a large kind of elements of varying structures like oils and fats; steroids, phospholipids and so on. Lipids are commonly prepared of oxygen, hydrogen, and carbon. Some oxygen atoms in a lipid molecule is all time small than the number of carbon molecules. Sometimes small number of nitrogen, phosphorus and sulphur as well exist. They comprise a large portion of their structure such as a hydrocarbon. Lipids offer as energy save for make use in metabolism and as a main structural material in cell membranes for regulating the activities of cell and tissues.
A sample of water contains: suspended matter = 100 mg; Ca(NO3)2 = 16.4 mg/L; MgSO4 = 24 mg/L; MgCl2 = 19 mg/L; NaOH = 40 mg/L and KOH = 56 mg/L. Calculate temporary, permanent and
The positive charge of an atom is: (1) Spread all over the atom (2) Distributed around the nucleus (3)Concentrated at the nucleus (4) All of these Ans: Concentr
Q. Test for hydrocyanic acid? Hydrocyanic acid is present as an impurity in synthetic ethyl isothiocyanate, which is employed to make the flavour of mustard oil more pungent. T
A 10L helium balloon at a pressure of two bar at 27C. Some O 2 is now inside in balloon and final volume is made 30L. the pressure also fell to 1 bar at similar temperature. the p
The energy of second Bohr orbit of the hydrogen atom is -328 kJ mol-1, hence the energy of fourth Bohr orbit would be: (1) - 41 kJ mol -1 (2) -1312 kJ mol -1 (3) -164
1. In water softening, which of the precipitates will settle out? 2. For particle sizes larger than 1μ in size 3. In non-ideal type II settling 4.The most usually used me
definition of milli equivalent
Covalent/ionic/atomic radius of hex-1-ene
Preparation of saturated calomel electrode and determination of standard potentials of electrodes such as Cu 1 Cu, Zn 1 Zn, etc. Comparison of the potential values with values from
A medicine dropper is an instrument used to calculate small amount of liquids, usually in milligrams.
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