Questions

Select the correct statements:

Remember concepts with our Masterclasses.

80k Users

60 mins Expert Faculty Ask Questions

MnO2 dissolves in conc. HCl but does not form Mn4+ ion

MnO42− is strongly oxidizing and stable only in very strong alkali.

KMnO4 does not act as oxidrzingagent in basic medium

Decomposition of acidic KMnO4 is not catalysed by sunlight.

Ready to Test Your Skills?

Check Your Performance Today with our Free Mock Tests used by Toppers!

detailed solution

Correct option is

(1) MnO2+4HCl⟶MnCl2+Cl2+2H2O It dilute alkali, water or acidic solution MnO42− dirptoportionate also Correct (3)MnO4⊖ acts as an oxidizing agent in basic medium. MnO4⊖+2H2O+3e−⟶MnO2+4OH⊖E∘=1.23VCorrect (4)Decomposition of acidic KMnO4 is catalyzed by sunlight4MnO4⊖+4H⊕⟶4MnO2+2H2O+3O2

Talk to our academic expert!

Create Your Own Test
Your Topic, Your Difficulty, Your Pace

Similar Questions

This section contains questions each with two columns-I and II. Match the items given in column I with that in column II.

	Column I		Column II
a.	Ni	p.	Elements having same number of unpaired electron in their dispositive in column I
b.	Na	q.	At least 13 electrons are having magnetic quantum number 'zero'
c.	Mn	r.	Atom is paramagnetic
d.	Pd	s.	Element is not transition element
		t.	Element having pseudo inert gas configuration in its dispositive cation