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State about the Point imperfection
They are imperfect point-like regions in the crystal. One or two atomic diameters is the typical size of a point imperfection. A substitutional impurity and an interstitial impurity are instances of point imperfection.
solution and collegative properties explanation
Be 2+ is isoelectronic with: (1) Mg 2+ (2) Na + (3) Li + (4) H + Ans: Li +
Polyhydroxy butyrate (PHB) Polyhydroxy butyrate or PHB is acquired from hydroxy butyric acid (3-hydroxy butanoic acid)
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Although cholrine is electoon withdrawing group.yet it is ortho nd para directing in electrophilic aromatic substitution reactants.why? Ans) Halogens are an exception of the dea
copper reacts with oxygen to form two oxide X and Y .On analysis 1.535g of X yielded 1.365g of copper and 1.450g of Y yielded 1.160g of copper. [I] determine the chemical formula o
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chemical prooperties of aldehydes?
An element have atomic weight 40 and it's electronic configuration is 1s 2 , 2s 2 , 2p 6 , 3s 2 , 3p 6 . Then its atomic number and number of neutrons will be: (1) 18 and 22
Give one significant use of each of the following: (i) Bithional (ii) Chloramphenicol (iii) Streptomycin (iv) Paracetamol
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