Question
Choose which of the given reactants are likely to result in a displacement reaction Choose which...
choose which of the given reactants are likely to result in a displacement reaction
Choose which of the given reactants are likely to result in a displacement reaction. 1,(s) + NaCl(aq) Cl2(g) + NaBr(aq) C1,(g) + Nal(aq) F2(g) + Nal(aq) Br, (1) + NaF(aq)
Answers
The formation of NaX where X is a halogen, depends upon the bond energy of Na-X bond. Stronger the bond, greater is the energy released and hence greater is the stability of NaX. As the size of X increases, the bondlength Na-X increases and hence the bond strength decreases. For example, Na-F is smaller than Na-Cl because F- ion is smaller than Cl- ion. So, NaF is more stable than NaCl. So, the Cl in NaCl can be replaced by F.
The size of halogen ions are,
F<Cl<Br<I
So, any halogen can replace all the halogens that are on it's right in the given order.
So,
I2 can't displaxe Cl.
Cl2 can displace Br.
Cl2 can displace I.
F2 can displace I.
Br2 can't displace F.
So, all are correct except for the first amd the last.
Comment if any problem.
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