Question

Red phosphorus is heated with sulphur in an atmosphere of carbondioxide to produce:

• A. $P_4{S}_3$
• B. $P{S}_3$
• C. $P_2{S}_3$
• D. $P{S}_4$

Answer 1

Answer: (A)

$P_4{S}_3$

Red phoshorus is heated with sulphur in an atmosphere of carbondioxide to produce phosphorous tri-sulphide. $\left(P_4{S}_3\right)$.
Phosphorous trisulphide is contained in an ordinary match stick.