Home/
Competitive Exams/
NEET/
Chemistry/
Some Basic Concepts of Chemistry/
Question 20065
NEET Chemistry · Hard

Some Basic Concepts of Chemistry: Oxidation state MCQ

Solve this quality-checked NEET multiple-choice question, then review the correct answer and explanation.

Timer-based practiceDetailed answer reviewMobile-friendly flow
Oxidation stateHardQuestion 20065

Question

Oxidation state of Cr in K2Cr2O7K_2Cr_2O_7 is:

  1. A
    +6
    Correct
  2. B
    +3
  3. C
    +7
  4. D
    +2

Correct answer

+6

Explanation

2(+1) + 2x + 7(-2) = 0 gives x = +6.

Review Some Basic Concepts of Chemistry notesStart timed chapter practice