2021_3.1 Polyatomic Ions (Recognizing/Remember them)

How many polyatomic ions are there in the 'O' level syllabus?

• 3

• 4

• 5

• 6

Which of the following represents the nitrate ion?

• $NO^{3\cdot}$

• $NO3^-$
  

• $NO_3^-$
  

Which of the following represents the hydroxide ion?

•  $HO^{\cdot}$ 

•  $OH^{2-}$  

•  $OH^-$  
  

•  $HO^{2-}$  

Tags

NGSS.HS-PS1-3

Which of the following represents the sulfate ion?

•  $SO_3^{2-}$  
  

•  $SO_4^-$  
  

•  $SO_3^-$  
  

•  $SO_4^{2-}$  
  

Which of the following represents the ammonium ion?

•  $NH^{4+}$  
  

•  $NH_{4+}$  
  

•  $NH_4^{2+}$  
  

•  $NH_4^+$  
  

Which of the following represents the carbonate ion?

•  $CO_2^{3-}$  
  

•  $CO_3^{2-}$  
  

•  $CO3^{2-}$  
  

•  $CO_2^{3-}$