Match the column :-A C(S, graphite) + O2(g) → CO2(g) P ΔH°CombustionB CO(g) + 1/2 O2(g) → CO2(g) Q ΔH°sublimationC CH4(g) → C(g) + 4H(g) R ΔH°formationD C(s) → C(g)  S ΔH°atomisationA → R, B → S, C → P, D → Q    A → R, B → P, C → Q, D → SA → P, B → S, C → Q, D → RA → R, B → P, C → S, D → Q

Write down a balanced equation for formation reaction of butane, 𝐶4𝐻10 (2 marks)(c) Given the following reactions and enthalpiesC4H8(l) + 6O2(g) → 4CO2(g) + 4H2O(l) ∆𝑐𝑜𝑚𝑏.𝐻298𝐾𝜃 = -2,718.8 kJ mol-1C4H8(l) + H2(g) → C4H10(l) ∆ℎ𝑦𝑑.𝐻298𝐾𝜃 = -126.8 kJ mol-1C(s, graphite) + O2(g) → CO2(g) ∆𝑓𝐻298𝐾𝜃 (𝐶𝑂2(𝑔)) = -393.5 kJ mol-1H2(g) + 12 O2(g) → H2O(l) ∆𝑓𝐻298𝐾𝜃 (𝐻2𝑂(𝑙)) = -285.8 kJ mol-1calculate the enthalpy change of formation ∆𝑓𝐻298𝐾𝜃 𝐶4𝐻10(𝑙)

Match the column  Column-ICompound   Column-IIBoiling point (K)(a) Propanal (p) 370(b) Acetone (q) 329(c) Propan-l-ol (r) 281(d) Methoxyethane (s) 322A a-q, b-s, c-p, d-r B a-s, b-q, c-p, d-r C a-p, b-q, c-s, d-r D a-r, b-q, c-p, d-s

Match the columns  Column-ICompounds   Column-IIpKaI (a) 4.19II (b) 4.46III CH3COOH (c) 4.76IV (d) 3.41 A I-a, II-b, III-c, IV-d B I-b, II-c, III-d, IV-a C I-b, II-d, III-c, IV-a D I-a, II-d, III-c, IV-b

____________ is the perfectly crystalline allotropic pair of carbon.A Coal and fullerene B Graphite and Lampblack C Graphite and fullerene D Diamond and coke

For which of the following ΔH = ΔUN2(g) + 3H2(g) → 2NH3(g)PCl5(g) → PCl3(g) + Cl2(g)C(s) + O2(g) → CO2(g)H2(g) + O2(g) → H2O(ℓ)