JEE Main 2022 · ChemistryNumerical answerNumerical valueMediumConceptual
JEE Main 27 June 2022, Shift 1, Chemistry Q87
Question 87 of 90 in this shift, Chemistry question 27 of 30, Section B.
The number of statement(s) correct from the following for Copper (at. no. 29) is/are __________.
(A) Cu(II) complexes are always paramagnetic
(B) Cu(I) complexes are generally colourless
(C) Cu(I) is easily oxidized
(D) In Fehling solution, the active reagent has Cu(I)
Official answer
3
NTA final key.
- Chapter
- The d- and f-Block Elements
- Topic
- d-Block Elements
- Idea tested
- Aqueous Stability of Cu+ vs Cu2+