TestUstad

In MgCl2, the oxidation state of 'Cl' is :

Correct answer: D. -1

  • A. 0
  • B. +2
  • C. -2
  • D. -1

Explanation

In MgCl2, the oxidation state of Mg is +2 since it is a Group 2 element and tends to lose two electrons to attain a noble gas configuration. Since MgCl2 is a neutral compound, the sum of the oxidation states of all the atoms in the compound should be zero.Let the oxidation state of Cl be x. Since there are two Cl atoms, the total contribution of Cl to the oxidation state will be 2x. Therefore, we can write:+2 + 2x = 0Solving for x, we get:x = -1Thus, the oxidation state of Cl in MgCl2 is -1.

Written and checked by , M.Phil ChemistryLast updated
Report an error

The more specific you are, the faster it gets fixed. A source beats an opinion.

Prefer email? [email protected]

About Electrochemistry

Electrochemistry describes electron transfer through oxidation and reduction, identifies oxidizing and reducing agents, and applies oxidation numbers to balance redox equations. It also covers electrode potential and the standard hydrogen electrode, which provides the reference for comparing the reduction tendencies of other electrodes.

Practise Electrochemistry

696 free Electrochemistry MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Start a free Electrochemistry testAll Electrochemistry MCQs

Discussion

Stuck on an option, or know a faster way to get there? Ask or explain it here.

No comments yet. Be the first to explain this one.

Exams that ask Chemistry questions like this

Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Lecturer Chemistry Test Chemistry80 MCQsSubject Specialist Chemistry Test Chemistry80 MCQsDUHS Chemistry45 MCQsETEA MDCAT Chemistry45 MCQsKMU Chemistry45 MCQsMDCAT Chemistry45 MCQsNUMS Chemistry40 MCQsECAT Chemistry30 MCQsETEA Engineering Admission Test Chemistry30 MCQsGIKI Chemistry30 MCQsNED Chemistry30 MCQsNET Chemistry30 MCQsPIEAS Chemistry30 MCQsBSN Entry Test Chemistry25 MCQs

More Electrochemistry questions

In electrolysis of aqueous CuCl2, the metal deposited at the cathode is:

Study the following facts:Zn → Zn+2 + 2e― Eo = +0.76 VCu → Cu+2 + 2e― Eo = - 0.34 V

By accepting an electron, a Hydronium ion is converted into:

In electrolytic cell, a salt bridge is used in order to:

In all oxidation reactions, atoms of an element in a chemical species lose electrons and increase their:

In the figure given below, the electron flow in external circuit is from: