Which of the following reactions may be assoclated with aldehyde and ketone ?

Related Mcqs:

1. Aldehyde and ketone have same general formula for homologous series_________________?

   A. CnH2nO2n
   B. CnH2n
   C. CnH2nO
   D. CnH2nOn+1

2. The typical reactions of aldehyde is _____________?

   A. Electrophilic addition
   B. Nucleophilic substitution
   C. Nucleophilic addition
   D. Nucleophilic elimination

   Submitted by: Aamir khan Hullio

3. When an aldehyde is reacted with hydrogen cyanide a ” Cyanihydrin” is formed. This process is best termed as __________?

   A. Electrophilic addition
   B. Electrophilic substitution
   C. Nucleophilic addition
   D. Necleophilic substitution

   Submitted by: Muhammad Ali Kunbhar

4. Which of the following do not give aldol condensation reactions ?

   A. formaldehyde
   B. acetaldehyde
   C. diemthyl ketone
   D. propionaldehyde

5. In which of the following type of reactions energy of reactant is greater than energy of product________________?

   A. endothermic
   B. exothermic
   C. unpredictable
   D. same

6. In melting of iron, which of the following reactions takes place in Bladt Furnace at 400°C- 600°C________?

   A. CaO+ SiO2——> CaSiO3
   B. 2FeS+3O2——–> 2Fe+ SO2
   C. FeSiO3———> FeSiO3
   D. Fe2O3+ 3CO——–> 2Fe+ 3CO2

   Submitted by: Muhammad Ali Kunbhar

7. Ncleophilic addition reactions are catalysed__________________?

   A. Acid
   B. Base
   C. Both A and B
   D. None

8. Spontaneous reactions are_______________?

   A. Moderate
   B. Slow
   C. Fast
   D. not natural

9. Elimination bimolecular reactions involve____________________________?

   A. first order kinetics
   B. second order kinetics
   C. third order kinetics
   D. zero order kinetics

10. 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