A. PdCl2
B. Cu2Cl2
C. CuCl2
D. PbCl2
For industrial preparation of CH3CHO catalytic promoter is_________________? Read More »
Chemistry Mcqs, Diagnostic Test A. n. butane
B. Ethanol
C. Ethane
D. Diethy1 ether
Ethy1 chloride on reduction in the presence of Zn/HCI produces___________________? Read More »
Chemistry Mcqs, Diagnostic Test A. Carboxylic acid
B. Ethanoic acid
C. Propanoic acid
D. Butanoic acid
A. Chlorobenzene
B. Toluene
C. Nitrobenzene
D. Benzene
Which one of the following will be sulphonated readily ? Read More »
Chemistry Mcqs, Diagnostic Test A. Phenol
B. Maleic anhydride
C. Glyoxal
D. Benzoic acid
When benzene is heated in air with V2O5 at 450°C yields_________________? Read More »
Chemistry Mcqs, Diagnostic Test A. sp3 – sp2
B. sp2 – sp
C. sp2 – sp
D. sp3 – sp2 – sp
In 1 – pentene -4- yne the carbon exhibit hybridization_________________? Read More »
Chemistry Mcqs, Diagnostic Test A. H2SO4
B. KMnO4
C. H2S
D. K2CrO4
Which one of the following looks odd__________________? Read More »
Chemistry Mcqs, Diagnostic Test A. Iron
B. Cobalt
C. Chromium
D. Manganese
The most paramagnetic element is____________________? Read More »
Chemistry Mcqs, Diagnostic Test A. Fluorine
B. Chlorine
C. Iodine
D. Bromine
Which molecule has the highest bond energy among the halogens_________________? Read More »
Chemistry Mcqs, Diagnostic Test A. White
B. Redox potential
C. Black
D. Violet
The most reactive allotropic form of phosphorus is________________? Read More »
Chemistry Mcqs, Diagnostic Test