How many constitutional isomers are possible when there are three identical substituents on a benzene ring?
A) 2
B) 3
C) 4
D) 5
B
You might also like to view...
Erupting volcanoes eject pyroclastic materials of varying diameters. These materials, from smallest to largest are ____________________, ____________________, ____________________, and ____________________
Fill in the blank(s) with correct word
Which of the following is true of the Earth's coastlines?
A) Most of the Earth's coastlines are relatively young and undergoing continuous change. B) The Earth's coastlines are among the oldest landforms on the planet. C) There are few inputs that directly affect the Earth's coastlines beyond tidal action. D) The Earth's coastline show a remarkable degree of similarity across the planet.
A sequence of changes that reinforces the direction of initial change is known as ____________________ feedback
Fill in the blank(s) with correct word
Approximately ____ percent of the world's population lives in extreme poverty
a. 15% b. 30% c. 25% d. 20%