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From the point of view of "green chemistry" - why should reactions be carried out in CO2 instead of using carbon monoxide or phosgene (2 reasons)? Apart from the compression of carbon dioxide, what is the major obstacle in using CO2 as a reactant in comparison to CO or COCl2 (1 reason) ?
The second law states that where dS ≥ dQ/T for a reversible process and dS = dQ/T for an irreversible process. a. Show that since dW 12 = -dW 21 (dW reverse = -dW forwar
i) Electrophillic substitution in case of aromatic amines takes place more readily than benzene. ii) Nitro compounds have higher boiling points than hydrocarbons having almost s
When the principal quantum number(n= 3) , the possible values of azimuthal quantum number(l ) is: (1) 0, 1, 2, 3 (2) 0, 1, 2 (3) - 2, - 1, 0, 1, 2
Write down the reactions taking place in different zones in the blast furnace during the extraction of iron.
Q. Analysis of water gave the following results H 2 SO 4 = 196Mg/L; MgSO 4 = 24Mg/L, CaSO 4 = 272Mg/L and NaCl = 25Mg/L. Water is to be supplied to the town of the popul
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(a) How is aniline obtained from benzene? (b) Why are the secondary amines more basic than primary amines? Describe. (c) Write the complete chemical reactions for the convers
Why the kmno4 is colored.?
The value of the energy for the first excited state of hydrogen atom will be: (1) - 13.6 ev (2)- 3.40 eV (3) -1.51eV
Bond enthalpies The most straightforward measure of the strength of a bond is the energy needed to break it. Estimates of such bond energies are usually obtained from thermo c
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