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Q. Show the chemical properties of Aluminium?
Aluminium has a very high affinity for oxygen; this is reflected in high exothermic heat of formation of Al203 (-1676 kJ mol-1). This allows aluminium to extract oxygen from other metal oxides, and forms the basis of Goldschmidt's aluminothermic process for Ca, Sr, Ba, Mn, Cr, Mo, etc:
3Mn02 + 4Al --------------------------------->+ 2AI2, 03 + 3Mn
Fe203 + 2Al --------------------------------->Al2, O3, + 2Fe (l)
perkin ring clousre reaction
Chemical Properties of Alkyl Halides The alkyl halides are very reactive; the sequence of reactivity is as follow: Iodide > Bromide > Chloride (Nature of the hal
what is radiometric titration
Q. Illustrate diffrent types of graphs? Circle graphs a circle graph is utilized to show the parts of a fixed whole. This kind of graph is occasionally called a pie chart bec
respiration. is it a exothermic or endothermic
Which of the following sets of quantum numbers is correct for an electron in 4f orbital: (1) n-=4, l=3. m+1, s= +1/2 (2) n-=4, l=4. m-4, s= -1/2
How many moles of O2 are produced when 0.400 mol of KO2 reacts in this fashion? 4KO2+2CO2 ----> 2K2CO3+3O2
explain ion-exchange process for slution of hard water
Which of the following oxides of nitrogen is isoelectronic with CO 2: (1) No 2 (2) N 2 O (3) NO (4)N 2 O 2 Ans: N 2 O
Time-of-entry experiments indicate that a gene for resistance to kanamycin, kan-r, is closely linked to a gene for resistance to bacteriophage T5, T5-r. A geneticist has strains of
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