Match List I with List II:
Choose the correct answer from the options given below:
Let’s match the processes with their respective catalysts:
A. Haber process: This is the process for the industrial synthesis of ammonia (N₂ + 3H₂ → 2NH₃), and the catalyst used is Fe (iron).
Thus, A-I.
B. Wacker oxidation: This process involves the oxidation of alkenes to carbonyl compounds (like aldehydes or ketones), and the catalyst used is PdCl₂ (palladium chloride).
Thus, B-II.
C. Wilkinson catalyst: This catalyst is used in the hydrogenation of alkenes, and its composition is [(C₆H₅)₃RhCl] (tris(triphenylphosphine) rhodium chloride).
Thus, C-III.
D. Ziegler catalyst: This is used in the polymerization of alkenes, and the catalyst used is TiCl₄ with Al(C₂H₅)₃ (titanium tetrachloride and triethylaluminum).
Thus, D-IV.
Thus, the correct answer is (2) A-I, B-II, C-III, D-IV.
Match List I with List II:
Choose the correct answer from the options given below:
Which of the following statements are true?
A. Unlike Ga that has a very high melting point, Cs has a very low melting point.
B. On Pauling scale, the electronegativity values of N and C are not the same.
C. $Ar, K^{+}, Cl^{–}, Ca^{2+} and S^{2–}$ are all isoelectronic species.
D. The correct order of the first ionization enthalpies of Na, Mg, Al, and Si is Si $>$ Al $>$ Mg $>$ Na.
E. The atomic radius of Cs is greater than that of Li and Rb.
Choose the correct answer from the options given below:
A constant voltage of 50 V is maintained between the points A and B of the circuit shown in the figure. The current through the branch CD of the circuit is :
A bob of heavy mass \(m\) is suspended by a light string of length \(l\). The bob is given a horizontal velocity \(v_0\) as shown in figure. If the string gets slack at some point P making an angle \( \theta \) from the horizontal, the ratio of the speed \(v\) of the bob at point P to its initial speed \(v_0\) is :