CSEC Chemistry · May/June 2005 · Paper 2 · Question 1(b)(ii)

Y is a mixture of two salts. A student carries out tests on a sample of Y, with observations recorded in Table 1. You need to fill in the inferences.

To the remaining portion of solid Y, add 20 cm³ of distilled water, stir to dissolve and filter. Collect the filtrate and divide into three (3) equal portions. Observations: filtrate is pale green in colour. Inferences:

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