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Carboxylate salts
Carboxylate salts are less reactive than esters in nucleophilic acyl substitution reactions for two reasons. First, resonance stabilization of carboxylate salts is particularly significant because carboxylates have two identical, significant resonance structures;
Calculate energy of Rb per atom if light of wave length 5.4(10^-8)m produces electron with a speed of 2.450(10^6)
The total number of valence electrons in 4.2 gm N - 3 of ion is ( N A is the Avogadro's number): (1) 1.6N A (2) 3.2N A
Nylon (polyamides): S ynthetic fibre forming polyamides are also termed as Nylons. Therefore, Nylon is well known in the textiles. Nylons are those polymers which contains a repeat
The number of unpaired electrons in an O 2 molecule is: (1) 0 (2) 1 (3) 2 (4) 3 Ans: 2
role of chemistry in our daily life
Chromium has the electronic configuration 4s 1 3d 5 rather than4s 2 , 3d 4 because: (1) 4s and 3d have the same energy (2) 4s has a higher energy than 3d (3)4s 1 is
Ratio scales It is also possible to record liking or acceptability using magnitude estimation scaling methods, but consumers may find it difficult to handle the concept of rat
Q. Give the nine point hedonic scale? The nine point Hedonic scale is: Like extremely, like very much, like moderately, like slightly, neither like nor dislike, dislike slightl
why they are called noble gases
Atomic radius (r): As we known, the corner atoms do not touch each other. But, each corner atom touches the face centered atoms with the diagonal of the face of the cube as s
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