Question

Choose the response that most accurately and completely answers the following question.
A Science student has exactly four flasks - 1, 2, 3, and 4 - originally containing a red, a blue, a green, and an orange chemical, respectively. An experiment consists of mixing exactly two of these chemicals together by completely emptying the contents of one of the flasks into another of the flasks. The following conditions apply
The product of an experiment cannot be used in further experiments.
Mixing the contents of 1 and 2 produces a red chemical.
Mixing the contents of 2 and 3 produces an orange chemical.
Mixing the contents of 3 with the contents of either 1 or 4 produces a blue chemical.
Mixing the contents of 4 with the contents of either 1 or 2 produces a green chemical.

If the student performs exactly two experiments, then which one of the following could be the colours of the chemicals in the resulting two non-empty flasks?

Options

• blue, blue

• blue, orange

• blue, red

• green, red

Answer 1

blue, orange
Explanation:
If the contents of 1 and 2, i.e. red and blue are mixed, then they produce red chemical. Also, the contents of 3 and 4 i.e. green and orange are mixed, then they produce blue chemical.