MCQ
Metal cation which is coloured in its aqueous solution is:
  • A
    Sc3+
  • B
    Zn2+
  • C
    V3+
  • D
    Ti4+

Answer

  1. V3+

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

The bad smelling substance formed by the action of alcoholic caustic potash on chloroform and aniline is
The disodium salt of ethylene diamine tetracetic acid can be used to estimate the following ion(s) in the aqueous solution
Molar conductances of $BaCl_2, H_2SO_4$ and $HCl$ at infinite dilutions are $x_1, x_2$  and $x_3$, respectively. Equivalent conductance of $BaSO_4$ at infinite dilution  will be
After adding a solute freezing point of solution decreases to $-0.186.$ 

Calculate $\Delta {T_b}$ if ${K_f} = 1.86$ and ${K_b} = 0.521$.

Consider an electrochemical cell: $A ( s )\left| A ^{ n +}( aq , 2 M ) \| B ^{2 n +}( aq , 1 M )\right| B ( s )$. The value of $\Delta H ^{\ominus}$ for the cell reaction is twice that of $\Delta G ^{\ominus}$ at $300 K$. If the emf of the cell is zero,  the $\Delta S ^{\ominus}$ (in $J K ^{-1} mol ^{-1}$ ) of the cell reaction per mole of $B$ formed at $300 K$ is. . . . . . . (Given: $\ell n (2)=0.7, R$ (universal gas constant) $=8.3 J K ^{-1} mol ^{-1} . H , S$ and $G$ are enthalpy, entropy and Gibbs energy, respectively.)
Dissolving $120\, g$ of a compound (mol. wt. $60$) in $1000\, g$ of water gave a solution of density $1.12\, g/mL$. The molarity of the solution is ............ $\mathrm{M}$
Total number of acidic oxides among $N _2 O _3, NO _2, N _2 O , Cl _2 O _7, SO _2, CO , CaO , Na _2 O$ and $NO$ is $...........$
Assertion : Copper sulphate solution is not stored in zinc vessel.

Reason : Zinc forms complex with $CuSO_4$

Isoelectric point is a
The geometry of [Ni(CN)4​]2− is: