The ether used in Wurtz synthesis is__________________?
A. acidic B. basic C. aqueous D. dry
Chemistry MCQs
Which one of the following species is not an electrophile ?
A. NH3 B. Br+ C. H+ D. BF3
Which one of the following alcohols will be formed when ethyl magnesium bromide reacts with acetone ?
A. primary alcohol B. secondary alcohol C. tertiary alcohol D. dihydric alcohol
Which one of the following molecules does not form alcohol when reacts with Grignard reagent ?
A. formaldehyde B. acetaldehyde C. propanone D. carbondioxide
The best method of preparation of alkyl halides is a reaction of alcohol with__________________?
A. Zn / HCI B. SOCl2 / Pyridine C. PCI3 D. PCI5
50% inversion of configuration of molecules take place in a___________________?
A. E1 – reaction B. E2 – reaction C. SN1 – reaction D. SN2 – reaction
Which alkyl halide has the highest reactivity for a particular alkyl group ?
A. R-F B. R-C C. R-Br D. R-I
Which one is not a nucleophile ?
A. C2H5O- B. SCN- C. NH3 D. H3C+
Which alkyl halide out of the following may follow both SN1 and SN2 mechanism ?
A. CH3-X B. (CH3)3 C-CH2 – X C. (CH3)2 CH – X D. (CH3)3 C – X