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what are macroscopic properties ?
why are lanthanides and actinides called innertransition metals
The maximum number of electrons which each sub-shell can occupy is: (1) 2n 2 (2) 2n (3) 2 (2l+1) (4) (2l+1) Ans: 2
atoms combine to form molecule because they tend to
When beryllium is bombarded with α -particles, extremely penetrating radiations which cannot be deflected by electrical or magnetic field are given out. These are: (1) A beam
Equivalent weight of Ca in Ca3(PO4)2 is
Through, Arrhenius equation is applicable under a wide range of circumstances but collision theory, which was developed by Max Trautz and William Lewis in 1916-18, provides a great
What are the general methods for preparation of cycloalkane
Why boron is electron-deficient (a) Every atom has an octet; thus, this is not an electron-deficient compound. (b) The boron is electron-deficient because it has a sextet o
Prefix - IUPAC System of Naming Organic Compounds There are several groups that are not regarded as functional groups in the IUPAC name of the substance. These are linked as su
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