Regents Chemistry Exam June 2024 Question 44
44 Given an equation representing a reaction:
Which type of organic reaction is represented by this equation?
(1) addition (3) fermentation
(2) polymerization (4) substitution
Solution:
Let's go over all of the organic reactions:
Addition: You will recognize an addition reaction by seeing alkene (CnH2n) + X2 (X can be Cl, Br, I or F) on the reactant side.
Example: C3H6 + Cl2 → C3H6Cl2
Substitution: You will recognize substitution by seeing alkane ( CnH2n+2) + X2 (X can be Cl, Br, I or F) on the reactant side.
Example: C4H10 + Cl2 → C4H9Cl + HCl
Esterification: alcohol + organic acid ---> ester + water
Fermentation: In this reaction Glucose is on the reactant side and ethanol and carbon dioxide are on the product side. An enzyme such as zymase is used to speed up the reaction.
C6H12O6 ----> 2C2H5OH + 2CO2
Saponification: This reaction produces soap.
Fat + strong base ---> soap + glycerol
Polymerization: small identical molecules come together to make one big molecule.
The correct answer choice is substitution, choice 4.
LINKS:
Comments