| List I | List II | ||
| (A) | Weak intermolecular forces of attraction | I | Hexamethylenedia mine + adipic acid |
| (B) | Hydrogen bonding | II | AlEt3 + TiCl4 |
| (C) | Heavily branched polymer | III | 2-chloro-1, 3-butadiene |
| (D) | High density polymer | III | phenol+ formaldehyde |
choose the correct answer from the options given below:
1. A. Weak intermolecular forces of attraction: 2–chloro–1,3–butadiene (chloroprene) is the monomer of neoprene, which has weak intermolecular forces of attraction, being an elastomer. Correct match: III. 2–chloro–1,3–butadiene.
2. B. Hydrogen bonding: Hexamethylenediamine reacts with adipic acid to form Nylon-6,6. The presence of the amide group allows hydrogen bonding between polymer chains. Correct match: I. Hexamethylenediamine + adipic acid.
3. C. Heavily branched polymer: - Phenol reacts with formaldehyde to form Bakelite, which is a heavily branched (cross-linked) polymer. Correct match: IV. Phenol + formaldehyde.
4. D. High density polymer: - High-density polyethylene is prepared using the Ziegler-Natta catalyst (\( \text{AlEt}_3 + \text{TiCl}_4 \)). Correct match: II. \( \text{AlEt}_3 + \text{TiCl}_4 \). ### Final Matching: \[ \text{A–III, B–I, C–IV, D–II.} \]
What will be the equilibrium constant of the given reaction carried out in a \(5 \,L\) vessel and having equilibrium amounts of \(A_2\) and \(A\) as \(0.5\) mole and \(2 \times 10^{-6}\) mole respectively?
The reaction : \(A_2 \rightleftharpoons 2A\)

Cobalt chloride when dissolved in water forms pink colored complex $X$ which has octahedral geometry. This solution on treating with cone $HCl$ forms deep blue complex, $\underline{Y}$ which has a $\underline{Z}$ geometry $X, Y$ and $Z$, respectively, are

What will be the equilibrium constant of the given reaction carried out in a \(5 \,L\) vessel and having equilibrium amounts of \(A_2\) and \(A\) as \(0.5\) mole and \(2 \times 10^{-6}\) mole respectively?
The reaction : \(A_2 \rightleftharpoons 2A\)
A black body is at a temperature of 2880 K. The energy of radiation emitted by this body with wavelength between 499 nm and 500 nm is U1, between 999 nm and 1000 nm is U2 and between 1499 nm and 1500 nm is U3. The Wien's constant, b = 2.88×106 nm-K. Then,