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Explain the following observations:
(i) Generally there is an increase in density of elements from titanium (Z = 22) to copper (z =29) in the first series of transition elements.
(ii) Transition elements and their compounds are generally found to be good catalysts in chemical reactions.
Explain the term Forging with diagram Forging is shaping of metal either by steady compression or impact between a hammer or ram and anvil. Related to pressing of metal or
If value of azimuthal quantum number l is 2, then total possible values of magnetic quantum number will be: (1) 7 (2) 5 (3) 3 (4) 2 Ans: 3
what is attacking reagent
What are similarities and differences of primitive cells and unit cells? Ans: Unit cell is the basic building block of a crystal, repeated infinitely in three d
what is grignard reagent
Acid-base titrations - Types of titrations While the strength of an acid is determined along with the help of a standard solution of base, it is termed as acidimetry. Similarly
In solid state chemistry the CN 2 2- ion shows constitutional isomerism. The free acids of both anions (at least in the gas phase) are known. Illustrate the structural formul
The number of electrons in [ 40 19 k ] -1 is: (1) 19 (2) 20 (3)18 (4)40 Ans: 40
How to prepare my seminar paper ?
the increasing order(lower first) for the values of e/m (charge/mass) for e,p,n,a?
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