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A hydrocarbon z with molecular mass 78 on combustion gave 3.384g of carbon (IV) oxide and 0.693g of water. Determine the molecular formula of Z and draw its structure. [H=1, C=12,
The radius of which of the following orbit is same as that of the first Bohr's orbit of hydrogen atom: (1) He + (n= 2) (2) Li 2+ ( n= 2) (3) Li 2
Q. Explain about Magnetic Separation ? This process is based on the difference in magnetic properties of minerals. If the ore but not the gangue is attracted by a magnetic fiel
Q. Show reversible and exothermic reaction? The fact that SO 2 , can be oxidised to SO 3 , by air in the presence of platinum catalyst is the basis of the contact process which
What are the distinguishing characteristics of metallic bonding? The metallic state can be imagine as an array of positive ions, with a common pool of electrons to which all th
a dot placed inside a lamp symbol shows
Which of the following electronic configuration is not possible: (1) 1s 2 2s 2 (2) 1s 2 2s 2 2p6 (3) [Ar]3d 10 4s 2 4
Explain terminal carbons and central carbons The terminal carbons are bound to three groups, and are thus trigonal planar. The central carbon is bound to two groups, and is
Q. What are the Cationic and neutral ligands? The names of all anionic ligands end in '0' replacing the final 'e' in endings. Sometimes endings are also changed. Thus the given
Oxidation no of fe in fe2o3
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