The IUPAC name of the following compound is :

At 320 K, a gas A2 is 20% dissociated to A(g). The standard free energy change at 320 K and 1 atm in J mol-1 is approximately : (R = 8.314 JK-1 mol-1; ln2 = 0.693; ln 3 = 1.098)

Given (i) 2Fe2O3(s) $$\to$$ 4Fe(s) + 3O2(g); $$\Delta$$rGo = + 1487.0 kJ mol-1 (ii) 2CO(g) + O2(g) $$\to$$ 2CO2(g); $$\Delta$$rGo = $$-$$ 514.4 kJ mol-1 Free energy change, $$\Delta$$rGo for the reaction 2Fe2O3(s) + 6CO(g) $$\to$$ 4Fe(s) + 6CO2(g) will be :

$$\Delta$$fGo at 500 K for substance 'S' in liquid state and gaseous state are +100.7 kcl mol-1 and +103 kcal mol-1, respectively. Vapour pressure of liquid 'S' at 500 K is approximately equal to : ( R = 2 cal K-1 mol-1 )

An ideal gas undergoes a cyclic process as shown in Figure. $$\Delta$$UBC = $$-$$5 kJ mol-1, qAB = $$2$$ kJ mol-1, WAB = $$-$$5 kJ mol-1, WCA = 3 kJ mol-1. Heat absorbed by the system during process $$CA$$ is :

For which of the following reactions, $$\Delta$$H is equal to $$\Delta$$U?

Which of the following lines correctly show the temperature dependence of equilibrium constant K, for an exothermic reaction?

For which of the following processes, $$\Delta$$S is negative ?

The combustion of benzene(l) gives CO2(g) and H2O(l). Given that heat of combustion of benzene at constant volume is –3263.9 kJ mol–1 at 25oC; heat of combustion (in kJ mol–1) of benzene at constant pressure will be : (R = 8.314 JK–1 mol–1)

The major product B formed in the following reaction sequence is :

The major product of the following reaction is :

The major product formed in the following reaction is :

The increasing order of the acidity of the following carboxylic acids is :

The reagent(s) required for the following conversion are :

The main reduction product of the following compound with NaBH4 in methanol is :

Which of the following compounds will most readily be dehydrated to give alkene under acidic condition ?

A sample of $$NaCl{O}_3$$ is converted by heat to $$NaCl$$ with a loss of $$0.16$$ $$g$$ of oxygen. The residue is dissolved in water and precipitated as $$AgCl.$$ The mass of $$AgCl$$ (in $$g$$) obtained will be : (Given : Molar mass of $$AgCl=143.5$$ $$g$$ $$mo{l}^{-1}$$)

For per gram of reactant, the maximum quantity of N2 gas is produced in which of the following thermal decomposition reactions ? (Given : Atomic wt. - Cr = 52 u, Ba = 137 u)

An unknown chlorohydrocarbon has 3.55% of chlorine. If each molecule of the hydrocarbon has one chlorine atom only; chlorine atoms present in 1 g of chlorohydrocarbon are : (Atomic wt. of Cl = 35.5 u; Avogadro constant = 6.023 $$\times$$ 1023 mol-1)

The ratio of mass percent of C and H of an organic compound (CXHYOZ) is 6 : 1. If one molecule of the above compound (CXHYOZ) contains half as much oxygen as required to burn one molecule of compound CXHY completely to CO2 and H2O. The empirical formula of compound CXHYOZ is