For which mechanisms the first step involved is the same ?

Related Mcqs:

1. Species are formed in one step of reaction mechanism and used up in another step are called:

   A. Catalyst B. Intermediate C. inhibitor D. activated complex Submitted by: Said wali shah...

2. The number of molecules taking part in the rate determining step is called___________________?

   A. Order of reaction B. Rate of reaction C. Mole of a reaction D. Extent of a reaction...

3. The major steps involved in complete quantitative analysis are _________________?

   A. 2 B. 3 C. 4 D. 5...

4. Anything which increases rate of reaction without being involved in the reaction________________?

   A. Promoter B. Catalyst C. Inhibitor D. All of the above...

5. Treating phenol with formaldehyde in the presence of dilute base forms Bakelite. The process involved is_________________?

   A. oxidation B. elimination C. condensation polymerization D. additional polymertization...

6. Ethyl chloride with nascent hydrogen produces_________________?

   A. methane B. ethane C. propane D. butane...

7. The rate of E1 reaction depends upon______________________?

   A. the concentration of substrate B. the concentration of nucleophile C. the concentration of substrate as well as nucleophile D. base the concentration of substrate as well as nucleophile...

8. 50% inversion of configuration of molecules take place in a___________________?

   A. E1 – reaction B. E2 – reaction C. SN1 – reaction D. SN2 – reaction...

9. SN2 reaction can be best carried out with__________________?

   A. primary alkyl halide B. secondary alkyl halide C. tertiary alkyl halide D. all...

10. Alkyl halides are considered to be very reactive compounds towards nucleophile because_________________?

    A. they have an electrophilic carbon B. they have an electrophilic carbon & a good leaving group C. they have an electrophilic carbon & a bad leaving group D. they have a nucleophilic carbon & a good leaving group...