CSEC Chemistry · January 2019 · Paper 1 · Question Q31

If substances containing one mole of solute per \text{dm}^3 are investigated, which substance should cause the bulb to glow BRIGHTEST?

1. (A)Water
2. (B)Ammonia
3. (C)Sulfuric acid
4. (D)Ethanoic acid

This question uses a figure or table from the paper — you'll see it when you practise.