Question

When O2 reacts with H2S the products are SO2 and H2O.
Mixture Y contains an equal number of the two molecules shown, and no other molecules.
16. 18. 1. 32. 1
O= O. H---. S---H
1. 16. 1

Which statements about Y are correct?
1 The average Mr in Y is 34.
2 If some oxygen molecules are removed from Y, the average Mr of the mixture remains the
same.
3 When mixture Y is ignited, some H2S remains unreacted.

Answer 1

When mixture Y is ignited, some H2S remains unreacted.