What happens when: (i) PCl5 is heated? (ii) H3PO3 is heated?
Also write the reactions involved.
Open in App
Solution
Verified by Toppr
(i) When phosphorus pentachloride (PCl5) is heated, it decomposes into PCl3 and Cl2. This reaction is reversible.
PCl5⇔PCl3+Cl2
(ii) Orthophosphorous acid (H3PO3) on heating gives H3PO4 and PH3. In this reaction, the oxidation number of P in H3PO3 is +3. After reaction, the oxidation number of P increases to +5 in H3PO4 and decreases to -3 in PH3. Therefore, this is called a disproportionation reaction.
H3PO3→3H3PO4+PH3
Was this answer helpful?
0
Similar Questions
Q1
What happens when: (i) PCl5 is heated? (ii) H3PO3 is heated?
Also write the reactions involved.
View Solution
Q2
What happens when (i) PCl5 is heated?
(ii) H3PO3 is heated? Write the reaction involved.