JEE (Advanced) 2007 Paper-2

Two wires each carrying a steady current J are shown in four configurations in Column I. Some of the resulting effects are described in Column II. Match the statements in Column I with the statements in Column II and indicate your answer by darkening appropriate bubbles in the $$4 \times 4$$ matrix given in the ORS.

Column I gives some devices and Column II gives some processes on which the functioning of these devices depend. Match the devices in Column I with the processes in Column II and indicate your answer by darkening appropriate bubbles in the $$4 \times 4$$ matrix given in the ORS.

Consider a titration of potassium dichromate solution with acidified Mohr’s salt solution using diphenylamine as indicator. The number of moles of Mohr’s salt required per mole of dichromate is

Among the following metal carbonyls, the C-O bond order is lowest in

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 is

Cyclohexene on ozonolysis followed by reaction with zinc dust and water gives compound E. Compound E on further treatment with aqueous KOH yields compound F. Compound F is

The numberof stereoisomers obtained by bromination of trans-2-butene is

Among the following, the least stable resonance structure is

A positron is emitted from $$_{11}^{23}Na$$. The ratio of the atomic mass and atomic number of the resulting nuclide is

For the process $$H_2O(l)$$ (1 bar, 373 K) $$\rightarrow H_2O(g)$$(1 bar, 373 K), the correct set of thermodynamic parameters is