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.
Nature of compounds TeO₂ and TeH₂ is___________ and ______________respectively.
Match List I with List II:
Choose the correct answer from the options given below:
A sphere of radius R is cut from a larger solid sphere of radius 2R as shown in the figure. The ratio of the moment of inertia of the smaller sphere to that of the rest part of the sphere about the Y-axis is : 
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 :
The current passing through the battery in the given circuit, is: 
Given below are two statements:
Statement I: The primary source of energy in an ecosystem is solar energy.
Statement II: The rate of production of organic matter during photosynthesis in an ecosystem is called net primary productivity (NPP).
In light of the above statements, choose the most appropriate answer from the options given below: