Which of the following do not give aldol condensation reactions ?

Related Mcqs:

1. Which one exhibits aldol condensation____________________?

   A. HCHO
   B. C6H5CHO
   C. Cl3CCHO
   D. CH3COCH3

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

   A. nucleophile addition
   B. polymerization
   C. oxidation
   D. all of the above

3. Formaldehyde on condensation in the presence of calcium hydroxide: ______________?

   A. Formose 
   B. Fructose
   C. Maltose
   D. Xylose

   Submitted by: Said wali shah

4. 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

5. 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

6. Ncleophilic addition reactions are catalysed__________________?

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

7. Spontaneous reactions are_______________?

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

8. Elimination bimolecular reactions involve____________________________?

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

9. The typical reactions of aldehyde is _____________?

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

   Submitted by: Aamir khan Hullio

10. Which of the following substances does not give iodoform test ?

    A. acetaldehyde
    B. ethyl alcohol
    C. methyl alcohol
    D. acetone