Question

Which of the following compounds contains an ionic bondWhich of the following compounds contains an ionic bond?
A.KBr
B.CO2
C.NH3
D.CCl4

someonehelp plz

Answer 1

A. KBr 
__________________________

Answer 2

Answer:

The correct option is A. KBr

Explanation:

A ionic bond take place between two ions with different charges (cations and anions). In this case K+ (cation) and Br- (anion). The semireactions that gives rise to cation and anion and then to the KBr molecule are:

K⇒ (K+) + 1e-  K oxidizes and release an electron.

Br + 1e- ⇒ Br- Br reduces acepting the electron released.

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K + Br + 1e- ⇒ K+Br- + 1 e-