Neco 2020 Chemistry Question 36

Practice objective / multiple choice question 36 from the 2020 Neco Chemistry examination.

Neco 2020 Chemistry Objective / Multiple Choice Medium Difficulty
Question 36 NECO • 2020 • CHEMISTRY • objective

In a redox reaction, 0.254 g of an unknown metal M reacts with excess \(\mathrm{KMnO_4}\) in acidic medium according to the equation: \(\mathrm{M} + \mathrm{MnO_4^-} + \mathrm{H^+} \rightarrow \mathrm{Mn^{2+}} + \mathrm{M^{2+}}\). The volume of 0.200 M \(\mathrm{KMnO_4}\) required to complete the reaction is 50.0 mL. The metal M forms a +2 oxidation state in its product. Determine the atomic mass of M.

Answer Options

Correct Answer A. 63.5
B. 48.6
C. 70.9
D. 55.8
Correct Answer
A
Correct Option:
63.5

About This Question

This is Neco 2020 Chemistry Question 36. It is one of the objective questions from the 2020 Neco Chemistry examination.

Difficulty level: Medium .

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support