Contents

Carbon 12 has an isotopic abundance of…..…
a) 1.109%                                            

b) 97.89%
c) 98.98%                                             

d) 96.98%

c

Carbon 13 has an isotopic abundance of……
a)30.09%                                             

b) 87.78%
c) 58.09%                                             

d) 1.109%

d

Carbon 14 has an isotopic abundance of……
a) 89.98%                                            

b) 1.104%
c) 98.98%             

d) 1 part per trillion (ppt)

d

Chlorine is the…….. member of the 7th group
a) second                                              

b) fourth
c) third                                                  

d) fifth

a

Chlorine has ……… isotopes.
a) 2    

b) 5                        

c) 3    

d) 4

a

The natural abundance of Cl-35 is………….
a) 37.98%                                            

b) 75.53%
c) 76.89%                                             

d) 67.98%

b