Operational Organic Chemistry Interview Preparation Guide

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Aliquot: It is a measured sub-volume of the original sample
Diluent: Material with which sample is diluted

Thioacetamide is widely used in classical qualitative inorganic analysis as an in situ source for sulfide ions. Thus, treatment of aqueous solutions of many metal cations to a solution of thioacetamide affords the corresponding metal sulfide:
M2+ + CH3C(S)NH2 + H2O ? MS + CH3C(O)NH2 + 2 H+ (M = Ni, Pb, Cd, Hg)
Related precipitations occur for sources of soft trivalent cations (As3+, Sb3+, Bi3+) and monovalent cations (Ag+, Cu+).

Methane is a gas, formula is ch4, it is organic molecule

Anti aromatic compounds follows 4npi electron rule and are
cyclic compounds, planar, where as non aromatic are
nonplanar or planar, cyclic or acyclic.

uv lamp range is 200 nm to 340 nm.

vis lamp range is 320 nm to 1100 nm.


both of lamp range is mfg instument company voice of record
is enculd the data range in lamp is 200 nm to 1200 nm.

If benzene and toluene mixed the boiling point will be ~ 90
0C. Density will not change.

in p-nitrobenzoic acid due to -I effect of nitro group hydrogen present in acia become more elecronegative and easily remove as proton and act like strong acid

THERE NO DIFFERENCE BETWEEN PROCEDURE,BOTH ARE SAME.WE GENERALLY TERM IT AS SULPHATED ASH TEST/ROI.IN INDIAN PHARMACOEPIA,CALLED IT AS ROI AND IN USP,CALLED IT AS SULPHATED ASH TESH.BOTH ARE USED FOR THE DETERMINATION OF CONTENT OF INORGANIC MATTER IN AN ORGANIC SUBSTANCE.

high molecular weight easily we can seperate koH

PVC-POLYVINYL CHLORIDE AND uPVC IS THE Unplasticized
polyvinyl chloride IT IS USED FOR building industry as a
low-maintenance material.

Organic Chemistry is a branch of Science, which deals study
about carbon compounds except Carbon monoxide, Carbon di
oxide and corbonates.

c. Kerosine oil

An ion is a specie that have no unpaired electron and is charged, either positively or negatively i.e. may be a cation or an anion. It is formed due to heterolysis of a molecule e.g HCl----> H+ + Cl-
A radical is a neutral specie having atleast one unpaired electron and is formed due to homolysis of a molecule e.g
H-H -------> H* + H*
The * shows an unpaired electron. Similarly CH3* is a radical.

from directly reaction of toluene to cromyl chloride (CrO2Cl2)
at room temp. to form benzaldehyde.

Take 100ml water and pore 10gr NaOH
pellets sterr with gently boil. NaOH sol ready

By Fluorescein test ...
where tartaric acid " used in baking powder and found
in many food products

oxalic acid : harmful in contact with skin or eyes
toxic .remove Ca ions From blood and also block Kidneys

Fluorescein test depended on Light passes & usually in UV light