Heating phenol with Zn will yield_________________?

Related Mcqs:

1. 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...

2. Phenol was isolated by Runge from________________?

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

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

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

4. 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...

5. When aquious bromine is added to aqueous phenol a creamy white ppt is obtained. What does this reaction show ?

   A. phenol is unsaturated B. 2-bromophenol is insoluble in water C. a hydroxy group makes the benzene ring more susceptible to electrophilic attack D. acid-base reaction...

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

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

7. In crystallization if the solvent is inflammable then direct heating is________________?

   A. needed B. avoided C. depends on temperature D. crystallization does not involve heating...

8. Carboxylic acid reacts with ammonia to form ammonium salts which on heating produces_______________?

   A. CO2 B. Alkane C. Ester D. Acidamide...

9. Ammonia may be prepared by heating ammonium chloride with_______________?

   A. Water B. NaCl C. Aqueous sodium hydroxide D. H2SO4...

10. Which one is least ionic in nature and decompose on heating ?

    A. LiOH B. NaOH C. KOH D. CsOH...