Coal is produced after a long time decay of_________________?

Related Mcqs:

1. Crude oil is blackish coloured liquid produced after the decay of organic matter present between_________________?

   A. earth layer
   B. mountains
   C. sedimentary rocks
   D. rocks

2. The metallic sound produced by engine due to the pre-ignition of fuel is called _______________?

   A. knocking
   B. reforming
   C. cracking
   D. a and c

3. Main source of organic compounds is__________________?

   A. Animal
   B. Fossil
   C. Coal
   D. Plants

4. A double bond consists of __________________?

   A. Two sigma bonds
   B. Two Pi bonds
   C. One sigma and one Pi bonds
   D. One sigma and two Pi bonds

5. Which of the following can be used as anti-knocking agent ?

   A. PbCl2
   B. (C2H5)4 Pb
   C. (C2H5)2 Pb
   D. all of the above

6. The general formula of cycloalkene is __________________?

   A. CnH2n
   B. CnH2n+2
   C. CnH2n-1
   D. CnH2n-2

7. The first organic compound was synthesized in laboratory by_________________?

   A. Wohler
   B. Kolbe
   C. Berzilius
   D. Berthelot

8. First organic compound synthesized in laboratory was _________________?

   A. tartaric acid
   B. ethyl alcohol
   C. methanol
   D. urea

9. Which one of the following compounds shows intense knocking ?

   A. n-pentane
   B. iso-heptane
   C. iso-octane
   D. n-heptane

10. the fractional distillation of petroleum produces gasoline up to ________________?

    A. 10%
    B. 15%
    C. 20%
    D. 30%