Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Modern Meaning of Organic Chemistry
Organic chemistry is a chemistry of hydrocarbons and their derivatives where covalently bonded carbon is a necessary constituent. Berzelius put forward a theory in year 1815 termed as vital force theory. It describes that, "organic compounds could be prepared just only by living organism within the influence of a mysterious force termed as vital force". Accidental synthesis of urea from Wohler and synthesis of acetic acid from Kolbe led to the fall of this theory.
Berthelot made methane in laboratory and the mainly abundant organic compound is cellulose that is a polymer of glucose. Kekule and Couper planned the tetravalency of carbon and wrote the first structural formula. In year 1874, Van't Hoff and Le Bell suggested a tetrahedron model of carbon.
diagonal relationship and anomalous behaviour of the each element of the periodic table
How I write chm practice khata
If change in energy (ΔE) = 3x 10 -8 j, h= 6.64x 10 -34 j-s and c= 3x 10 8 m/s then wavelength of the light is: (1) 6.36x 10 3 Å (2) 6.36x 10 5 Å
how can we refine metal by zone refining process
The increasing order (lowest first) for the values of e/m (charge/mass) for: (1) e,p,n,a (2) n,p,e,a, (3) n,p,a,e,
How much time a hydrogen electron will take when it goes from first orbit to second orbit?
#question how many calories are required to heat 1.0g water from 15 to 65c..
Q. Describe about states of matter? Under usual conditions matter exists in three different physical forms called the states of matter -solid or liquid or gas. Solid matter
Ionic bonds are usually formed by combination of elements with: (1) High ionisation potential and low electron affinity (2) Low ionisation potential and high electron affini
assignment of plazma
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd