C5H12 has the number of isomers ___________________?

Related Mcqs:

1. Hydro carbons which burn with smoky flame are called_________________?

   A. Aliphatic
   B. Alicyclic
   C. Aromatic
   D. Aldehyde

2. Octane number 2 2 4-trimethyl pentane is__________________?

   A. 100
   B. 90
   C. 80
   D. 70

3. Geometric isomerism is usually found in___________________?

   A. Alkanes
   B. Alkenes
   C. Alkynes
   D. Esters

4. Chemical properties of first member of homologous series with respect to other members are_________________?

   A. same
   B. different
   C. depends upon number of C atoms
   D. depends upon number of H atoms

5. Compounds having same molecular formula but differ in structural formula are called __________________?

   A. polymer
   B. monomer
   C. isomer
   D. allotropes

6. Organic compounds are soluble in ____________________?

   A. polar solvent
   B. non-polar solvent
   C. alkalies
   D. water

7. Isomerism which is present only in alkene is__________________?

   A. structural isomerism
   B. metamerism
   C. cis-trans isomerism
   D. both b and c

8. Compound containing benzene ring in their structure are __________________?

   A. aliphatic
   B. aromatic
   C. carboxylic acid
   D. carbohydrates

9. Which of the following is an amide________________?

   A. R-NH2
   B. RCONH2
   C. R – NH – R
   D. C6H5NH2

10. Octane number can be improved by________________?

    A. Isomerization
    B. Adding (C2H5)4 Pb
    C. Adding (CH3)4 Pb
    D. All