NTA JEE Mains 6th April Shift 2 2026

An excess of AgNO$$_3$$ is added to 100 mL of a 0.05 M solution of tetraaquadichloridochromium (III) chloride. The number of moles of AgCl precipitated will be __________ $$\times 10^{-3}$$. (Nearest integer)

An alkane (Y) requires 8 moles of oxygen for complete combustion and on chlorination with Cl$$_2$$/h$$\nu$$, (Y) gives only one monochlorinated product (Z). The total number of primary carbon atoms in (Y) is __________.

500 mL of 0.2 M MnO$$_4^-$$ solution in basic medium when mixed with 500 mL of 1.5 M KI solution, oxidises iodide ions to liberate molecular iodine. This liberated iodine is then titrated with a standard $$x$$ M thiosulphate solution in presence of starch till the end point. If 300 mL of thiosulphate was consumed, then the value of $$x$$ is __________.

In a closed flask at 600 K, one mole of $$X_2Y_4(g)$$ attains equilibrium as given below : $$$X_2Y_4(g) \rightleftharpoons 2XY_2(g)$$$ At equilibrium, 75% $$X_2Y_4(g)$$ was dissociated and the total pressure is 1 atm. The magnitude of $$\Delta_r G^{\ominus}$$ (in kJ mol$$^{-1}$$) at this temperature is __________. (Nearest Integer) (Given : R = 8.3 J mol$$^{-1}$$ K$$^{-1}$$; ln 10 = 2.3, log 2 = 0.3, log 3 = 0.48, log 5 = 0.69, log 7 = 0.84)

Decomposition of a hydrocarbon follows the equation $$k = (5.5 \times 10^{11} s^{-1}) e^{\frac{-28000K}{T}}$$. The activation energy of reaction is __________ kJ mol$$^{-1}$$. (Nearest Integer) Given : R = 8.3 J K$$^{-1}$$ mol$$^{-1}$$