Chemistry Past Questions and Answers

The above graph shows a typical heating curve from the solid phase through the liquid phase to the gaseous phase of a substance. Which part of the curve shows solid and liquid in equilibrium?

Question 622:

Use the figure above to answer this question. Which of the following compounds is an isomer of the compound

Question 623:

Use the figure above to answer this question. Which of the following is NOT a monomer?

Question 624:

What is the IUPAC name for the compound

A 1-chloro-2-methylprop-2,3-ene
B 1-chloro-2-methylprop-2-ene
C 3-chloro-2-methylprop-1-ene
D 3-chloro-2methylprop-1,2-ene

Question 625:

JAMB 1990

Which of the following is a physical change?

A The bubbling of chlorine into water
B The bubbling of chlorine into a jar contanining hydrogen
C The dissolution of sodium chloride in water
D The passing of steam over heated iron