Bright Tutorials Bright Tutorials
ICSE Class 10 Chemistry Question 16 of 20

Solved 2022 Semester 2 Question Paper ICSE Class 10 Chemistry — Question 16

Back to all questions
16
Question

Question 5(iv)

Study the diagram, which shows the Brown Ring Test and answer the questions given below:

Study the diagram, which shows the Brown Ring Test and answer the questions. Which ion is determined by Brown Ring Test? Why is freshly prepared iron[II] sulphate used in the test? Name the substance Z. ICSE 2022 Chemistry Solved Question Paper.

(a) Which ion is determined by Brown Ring Test?

(b) Why is freshly prepared iron[II] sulphate used in the test?

(c) Name the substance Z.

Answer

(a) Nitrate ion [NO31-]

(b) As iron [II] sulphate on exposure to the atmosphere is oxidised to iron [III] sulphate and the test will not answer with iron [III] sulphate, hence, freshly prepared iron[II] sulphate used in the test.

(c) Concentrated Sulphuric Acid.