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Why a covalent bond is directional? The covalent bond is formed as a result of pairing of two electrons in the atomic orbitals of two atoms. The bond then should lie along the
what is oxidation state?
properties and effects
1. Acetylation of key proteins is known to correlate with the gene expression in eukaryotes. What class of chromatin proteins is modified? What is the chemical nature of the acetyl
match the graphs alkane,alkeneandalkyne
The third line in Balmer series corresponds to an electronic transition between which Bohr's orbits in hydrogen: (1) 5 → 3 (2) 5 → 2 (3) 4→ 3
Reactions that are classified as oxidation-reduction (redox) reactions all have the common trait that electrons leave one component (that is, getting oxidized) to be taken up by an
why ionisation energy of aluminium is greater then Ga?
Alkanes have single bond, but why are they less reactive as compared to alkenes or alkynes which have respectively double or triple bonds ? Alkanes have only single sigma bond w
A filled or half-filled set of p or d -orbitals is spherically symmetric. Point out the species which has spherical symmetry: (1) Na (2) C
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