List of top Chemistry Questions on Oxidation Number And Oxidation States asked in CUET (UG)

On addition of small amount of \(KMnO_4\) to concentrated \(H_2SO_4\), a green oily compound is obtained which is highly explosive in nature. Identify the compound from the following.
Which of the following set of ions act as oxidizing agents?
The oxidation state of chromium in ($K_2Cr_2O_7$) is:
Match List I with List II for the oxidation state of central atoms:
List IList II
(A) Cr2O72−(I) +3
(B) MnO4−(II) +5
(C) VO3−(III) +7
(D) FeF63−(IV) +6
Choose the correct answer from the options given below:
Why does Fluorine exhibit only -1 oxidation state?
Match List I with List II

List-I

List-II

(A)Oxidation state of Mn in MnO2 is(I)+2
(B)Most stable oxidation state of Mn is(II)+3
(C)Most stable oxidation state of Mn
in \(MnO_{4}^{-}\) is		(III)+4
(D)Characteristic oxidation state of 
lanthanoids is		(IV)+7

Choose the correct answer from the options given below: