Related InterviewSolutions

• Geometrical shapes of the complex formed by the reaction of `Ni^(2+)` with `Cl^(Θ),CN^(Θ)` and `H_(2)O` are :A. octahedral, tetrahedral and square planarB. tetrahedral, square planar and octahedralC. square planar, tetrahedral and octahedralD. octahedral, square planar ans octahedral
• The shapes of `XeO_(2)F_(2)` molecule isA. trigonal bipyramidalB. square planarC. tetrahedralD. see-saw
• The reaction of white phosphorus with aqueous `NaOH` gives phosphine along with another phosphorus containing compound. The reacation type, the oxidation states of phosphorus in phosphine and the other product are respectvely:A. redox reaction, -3 and -5B. redox reaction , +3 and +5C. disproportionation reactin , -3 and +5D. disproportionation reaction , -3 and +3
• The electrochemical cell shown below is a concentration cell `M//M^(2+)` (saturated solution of a sparingly soluble salt, `MX_(2))||M^(2+)(0.001 mol dm^(-3))|M` The emf of the cell depends on the difference in concentrations of `Mn^(2+)` ions at the two electrodes. The emf of the cell at `298 K` is `0.059 V`. The value of `DeltaG ( kJ "mol"^(-1))` for the given cell is : (take `1 F = 96500 C "mol"^(-1)`)A. `-5.7`B. 5.7C. 11.4D. `-11.4`
• Amongst the given option, the compound(s) in which all the atoms are in one plane in all the possible conformations (if any), is/areA. B. C. `H_(2)C=C=O`D. `H_(2)C=C=CH_(2)`
• The total number of basic groups in the following form of lysine is
• Amongst the following, the number of compounds soluble in aqueous `NaOH` is `? ,
• A compound `H_(2)X` with molar mass of `80 g` is dissolved in a solvent having density of `0.4 g mL^(-1)`. Assuming no change in volume upon dissolution, the molality of a `3.2` molar solution is
• A uniform circular disc of mass 1.5 kg and raius 0.5 m is initially ar rest on a horiozntal frictonless surface. Three forces of equal matgnitude F = 0.5 N are applied simultaneously along the three sides of an equilateral triangle XYZ with its vertices on the perimeter of the disc (see figure). One second after applying the forces the angular speed of the disc in `rad s^(-1)` is
• A solution of a metal ion when treated with `KI` gives a red precipitate which dissolves in excess `KI` to give a colourless solution. Moreover, the solution of metal ion on treatment with a solution of cobalt (II) thiocyanate gives rise to a deep blue crystalline precipitate. The metal ion isA. `Pb ^( 2 + )`B. `Hg^(2+ ) `C. `Cu^(2+ ) `D. `Co ^( 2+ )`