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)

Question

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) (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

A,B,C are correct and D is incorrect because Fehling solution has Cu(II)

Q. The number of statement(s) correct from the following for copper (at no. $29$ ) is/are ______
(A) $C u$ (II) complexes are always paramagnetic
(B) $C u$ (I) complexes are generally colourless
(C) $C u$ (I) is easily oxidized
(D) In Fehling solution, the active reagent has $C u$ (I)

$A, B, C$ are correct and $D$ is incorrect because Fehling solution has $C u$ (II)

Q. 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)

A,B,C are correct and D is incorrect because Fehling solution has Cu(II)

Q. The number of statement(s) correct from the following for copper (at no. $29$ ) is/are ______
(A) $C u$ (II) complexes are always paramagnetic
(B) $C u$ (I) complexes are generally colourless
(C) $C u$ (I) is easily oxidized
(D) In Fehling solution, the active reagent has $C u$ (I)

$A, B, C$ are correct and $D$ is incorrect because Fehling solution has $C u$ (II)