1. Alkynes are prepared from these compounds except:
2. Heterolytic bond fission is favored by the following except_____
3. Which of the following is used as a diagnostic test for the unit -C≡C-H?
4. The structural determination of an organic compound involves:
5. In a surprisingly large number of their properties, Beryllium resembles Aluminium, and Boron resembles Silicon. Such a relationship is called:
6. Which of the following is not true for the group 1A elements?
7. The effect of attracting or repelling of electrons in sigma bonds is referred to as_____
8. The fraction obtained during fractional distillation of petroleum containing C15–C20 is used for:
9. Which of the following products is not obtained when methane undergoes chlorination in the presence of UV light?
10. Which of the following organic substances is colorless?
11. The major product formed when 2-methylbut-2-ene is reacted with hydrogen bromide is_______
12. The oxidizing agent in Tollen’s reagent is ____
13. The product of the reaction between propyne and a mole of HBr in the presence of hydrogen peroxide is:
14. Filtration of a mixture after extraction is important to ____
15. The most abundant metal on the earth’s crust is:
