Qn:880

Two valence states of uranium, one with a deficit of four electrons and the other one with a deficit of six, occurs in nature and contributes to the diversity of uranium’s behavior.

(A) the other one with a deficit of six, occurs in nature and contributes
(B) the other one a deficit of six, occur in nature and contribute
(C) the other with a deficit of six, occurs in nature and contributes
(D) the other with a deficit of six, occur in nature and contribute
(E) one with six, occurs in nature and contributes

Official Answer: D


Discuss this question right here by clicking the comment link below