Related InterviewSolutions

• The secondary valence of `Co^(-3)` is 6. Calculate the number of moles of AgCl precipitated, when excess of `AgNO_(3)` solution is added to 1.5 lit of 0.2 M. `CoCl_(3). 5 NH_(3)` solution
• On treatment of 10 ml of 1M solution of the complex `CrCl_(3).6H_(2)O` with excess of `AgNO_(3)`, 4.305 g of AgCl was obtained. The complex isA. `[CrCl_(3)(H_(2)O)_(3)].3H_(2)O`B. `[CrCl_(2)(H_(2)O)_(4)]Cl.2H_(2)O`C. `[CrCl(H_(2)O)_(5)]Cl_(2).H_(2)O`D. `[Cr(H_(2)O)_(6)]Cl_(3)`
• The no. of moles of AgCl precipitated when excess of `AgNO_(3)` is mixed with one mole of `[Cr(NH_(3))_(3)Cl_(3)]` isA. `0`B. `1`C. `2`D. `3`
• Which is anionic complex?A. Ferrous ammonium sulphateB. CarnalliteC. Potassium ferrocyaniodeD. Gypsum
• The transition metals have a strong tendency to form complaexes because of (i) smaller sizes of the metal ions (ii) variable oxidation states (iii) high ionic charges of metal ions (iv) availability of vacant d-orbitals for bond formation.A. I onlyB. ii onlyC. I & iiD. I,ii,iii
• Which of the following is most likely structrure of `CrCI_(3).6H_(2)O` if `1//3` of total chlorine of the compound is precipitated by adding `AgNO_(3)` to its aqueous solution?A. `CrCl_(3).6H_(2)O`B. `[CrCLl_(3)(H_(2)O)_(3)].(H_(2)O)_(3)`C. `[CrCl_(2)(H_(2)O)_(4)]Cl.2H_(2)O`D. `[CrCl(H_(2)O)_(5)]Cl_(2).H_(2)O`
• Coordination number of Cr is six. A complex with ligands `C_(2)O_(4)^(2-)`, en and superoxide will be in the ratio to make complex `[Cr(C_(2)O_(4))_(x)(en)_(y)(O_(2))_(z)]^(Θ)` .A. `1:1:2`B. `1:1:1`C. `1:2:2`D. `2:1:1`
• Which of the following statement(s) is (are) correct with reference to the ferrous and ferric ions ?A. `Fe^(3+)` gives brown colour solution with potassium ferricyanide.B. gives blue precipitate with potassium ferricyanide.C. `Fe^(3+)` gives red colour solution with potassium sulphocyanide.D. `Fe^(2+)` gives brown colour solution with potassium sulphocyanide.
• Calculate the overall complex dissociation equilibrium constant for the `[Cu(NH_3)_4]^(2+)` ion, given that `beta_4` for this complex is `2.1xx10^(13)`A. `4.7xx10^(-14)`B. `2.1xx10^(-13)`C. `2.1xx10^(13)`D. `4.7xx10^(14)`
• The hybridization of the d-block element sodium nitropruside is