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

Related Mcqs:

1. Formaldehyde condenses with phenol in the presence of dilute H2SO4 to yield________________?

   A. Nylon 66
   B. urotropine
   C. Aniline formaldehyde plastic
   D. Bakelite

2. The hydrogenation of phenol in the presence of Ni and heat gives_________________?

   A. cyclohexane
   B. n – hexane
   C. 1 – hexanol
   D. cyclohexanol

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

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

   Submitted by: Said wali shah

4. Which of the following gases when passed through warm dilute solution of H2SO4 in presence of HgSO4 gives acetaldehyde

   A. CH₄
   B. C₂H₆
   C. C₂H₄
   D. C₂H₂

   Submitted by: Aamir khan Hullio

5. Heating phenol with Zn will yield_________________?

   A. Benzene
   B. Benzoic acid
   C. Phenoxide
   D. Cyclohexane

6. Phenol was isolated by Runge from________________?

   A. vegetable oil
   B. coaltar
   C. wood
   D. none of these

7. When phenol is heated with concentrated nitric acid the product is________________?

   A. Picric acid
   B. o-nitrophenol
   C. 1 3 5 -trinitro benzene
   D. p-nitrophenol

8. Which of the following is not a use of formaldehyde ?

   A. in silvery mirror
   B. in making medicine urotropine
   C. in making throat lozenges
   D. in making acetic acid

9. Formalin is ___________ solution of formaldehyde in water?

   A. 10%
   B. 20%
   C. 40%
   D. 60%

10. Formaldehyde and lactose are combined to produce throat lozenges named as__________________?

    A. formamint
    B. lactomint
    C. aldomint
    D. formalactose