NTA JEE Main 15th April 2018 Shift 2

For per gram of reactant, the maximum quantity of N$$_2$$ gas is produced in which of the following thermal decomposition reactions? (Given: Atomic wt. : Cr = 52u, Ba = 137u)

The de-Broglie's wavelength of electron present in first Bohr orbit of 'H' atom is:

The correct order of electron affinity is:

Which of the following best describes the diagram of molecular orbital?

$$\Delta_r G^\circ$$ at 500 K for substance 'S' in liquid state and gaseous state are +100.7 kcal 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$$^{-1}$$)

Given (i) 2Fe$$_2$$O$$_3$$(s) $$\rightarrow$$ 4Fe(s) + 3O$$_2$$(g); $$\Delta_r G^\circ$$ = +1487.0 kJ mol$$^{-1}$$
(ii) 2CO(g) + O$$_2$$(g) $$\rightarrow$$ 2CO$$_2$$(g); $$\Delta_r G^\circ$$ = -514.4 kJ mol$$^{-1}$$
Free energy change, $$\Delta_r G^\circ$$ for the reaction 2Fe$$_2$$O$$_3$$(s) + 6CO(g) $$\rightarrow$$ 4Fe(s) + 6CO$$_2$$(g) will be:

At a certain temperature in a 5L vessel, 2 moles of carbon monoxide and 3 moles of chlorine were allowed to reach equilibrium according to the reaction, CO + Cl$$_2$$ $$\rightleftharpoons$$ COCl$$_2$$. At equilibrium, if one mole of CO is present then equilibrium constant (K$$_c$$) for the reaction is:

Following four solutions are prepared by mixing different volumes of NaOH and HCl of different concentrations, pH of which one of them will be equal to 1?

In KO$$_2$$, the nature of oxygen species and the oxidation state of oxygen atom are, respectively:

Lithium aluminium hydride reacts with silicon tetrachloride to form: