On adding excess of $N{H_3}$ solution to $CuS{O_4}$ solution, the dark blue colour is due to

  • [AIIMS 1982]
  • A

    ${\left[ {Cu{{(N{H_3})}_4}} \right]^{ + 2 }}$

  • B

    ${\left[ {Cu{{(N{H_3})}_2}} \right]^{ + 2 }}$

  • C

    ${\left[ {Cu(N{H_3})} \right]^ + }$

  • D

    None of the above

Similar Questions

The spin-only magnetic moments of $\left[ Mg ( CN )_6\right]^{2-}$ and $\left[ MnBr _4\right]^{2-}$ in Bohr magnetons, respectively are

  • [KVPY 2011]

Which of the following pairs of elements might form an alloy

If spin only magnetic moment of $VCl_X$ is $1.73\,BM$ then correct formula is

Correct statement for $3d-$ series is

The magnetic moments of following,arranged in decreasing order will be :-

$(i)$ $Co^{3+}$ (Octahedral complex with a strong field ligand)

$(ii)$ $Co^{3+}$  (Octahedral complex with a weak field ligand like $F^-$ )

$(iii)$ $Co^{2+}$  (Tetrahedral complex)

$(iv)$ $Co^{2+}$ (Square planar complex)