Alcohols of lower Molecular weight are _______________?

Related Mcqs:

1. Oxygen (molecular weight = 32) diffuses at a rate of 10cm3/min under the same conditions of temperature and pressure how fast will hydrogen (molecular weight = 2) diffuse ?

   A. 20cm3/min
   B. 40cm3/min
   C. 160cm3/min
   D. 2.5cm3/min

2. The reaction of carboxylic acids with alcohols in presence of cone. H2SO4 is called _________________?

   A. esterification
   B. neutralization
   C. hydrolysis
   D. saponification

3. Which one of the following alcohols will be formed when ethyl magnesium bromide reacts with acetone ?

   A. primary alcohol
   B. secondary alcohol
   C. tertiary alcohol
   D. dihydric alcohol

4. The determination of correct molecular weight from Raoults law is applicable to_________________?

   A. a volatile solute in dilute solution
   B. a non-electrolyte & non volatile solute in concentrated solution
   C. a non-electrolyte & non volatile solute in concentrated solute
   D. non volatile solute in a dilute solution

5. What is the molecular weight of Ammonia (NH3) ________ ?

   A. 17.031 g/mol
   B. 18.031 g/mol
   C. 19.031 g/mol
   D. 27.033 g/mol

   Submitted by: Rashid Mehmood

6. What is the molecular Weight of Nitric acid (HNO3 ) ?

   A. 63.012 g/mol
   B. 65.012 g/mol
   C. 70.012 g/mol
   D. 81.011 g/mol

   Submitted by: Rashid Mehmood

7. A brivalent metal has the equivalent weighr of 12. The molecular weight to its oxide will be_______?

   A. 24
   B. 32
   C. 36
   D. 40

   Submitted by: Muhammad Ali Kunbhar

8. Which specie has unpaired electrons in antibonding molecular orbitals_______________?

   A. O2+2
   B. N2-2
   C. B2
   D. O2-2

9. By which method the molecular mass of benzene was determined as 78.108 ?

   A. Specific gravity method
   B. Vapour density method
   C. X-ray diffraction method
   D. Distillation methos

10. How many isomeric aldoses are possible for the molecular formula C6H12O6?

    A. 2
    B. 4
    C. 7
    D.16

    Submitted by: Muhammad Ali Kunbhar