3r 10. Which of the following could be the formula of an alkene? 11. Which alcoh

Question

3r 10. Which of the following could be the formula of an alkene? 11. Which alcohol is used in beverages? 12. Which of the five major divisions of chemistry deals exclusively with carbon compounds? A) Ethanol B) 2-Propanol C) Ethylene glycol D) Methanol E) Butanol A) Inorganic chemistry B) Biochemistry C) Physical chemistry D) Analytical chemistry E) Organic chemistry 13, when the equation Ga + Br2 GaBn is balanced, the total of all the coefficients (both writ "understood") is 14. Balance: C3Hs0_CO HO A) 2,3,8 B) 4,56 C) 4,3,4 D) 5,3,4 E) 524 15·The most reactive of all elements is A) sodium. B) carbon C) chlorine. D) hydrogen. E) luorine. 16. Which compound has three hydroxyl groups? A) Cholesterol B) Glycerol C) Ethanol D) Methanol glycol E) Ethylene glycol 17, Balance: Ni +-HCI-… Nici 2 -H2 A) 4 B) 6 C)1 D) 2 E) 3 18. For silver 47Ag1o8, how many neutrons are there? A) None B) 61 C) 155 D) 108 E) 47 19. Which is the most chemically active? A) Na B) K C) Ca D) Mg E) Li 20. Hydrocarbons containing only single bonds are A) alkanes. B) ketones. C) aromatics. D) alkenes. E) alkynes. A) 3 B) 2 C)4 D) 0 E) 1 A) plutonium B) Mendelevium C) Uranium D) Cesium E) Palladium 21. In organic molecules, a carbon atom will normally form how many bonds? 22. What is the only transition metal which has its electron configuration not ending in a S-shell? I hoc 1(72 the normal amount of C4. How old is it in years? 11400 E) 22800

Explanation / Answer

10)

Alkenes are compound of C and H

number of C and H should be such that the formula CnH2n is valid

This is true for C6H12 for n=6

Answer: D

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