NTA JEE Mains 28th Jan 2025 Shift 2

Instructions

For the following questions answer them individually

NTA JEE Mains 28th Jan 2025 Shift 2 - Question 71


Electrolysis of 600 mL aqueous solution of NaCl for 5 min changes the pH of the solution to 12 . The current in Amperes used for the given electrolysis is ____. (Nearest integer).

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NTA JEE Mains 28th Jan 2025 Shift 2 - Question 72


A group 15 element forms $$d\pi-d\pi$$ bond with transition metals. It also forms hydride, which is a strongest base among the hydrides of other group members that form $$d\pi-d\pi$$ bond. The atomic number of the element is ____.

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NTA JEE Mains 28th Jan 2025 Shift 2 - Question 73


Total number of molecules/species from following which will be paramagnetic is ______
$$O_{2},O_2^+,O_2^-,NO,NO_{2},CO,K_{2}[NiCl_{4}],[Co(NH_{3})_{6}]Cl_{3},K_{2}[Ni(CN)_{4}]$$

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NTA JEE Mains 28th Jan 2025 Shift 2 - Question 74


Consider the following data : Heat of formation of $$CO_{2}$$(g)= -393.5 kJ $$mol^{-1}$$ Heat of formation of $$H_{2}0$$(l) = - 286.0 kJ $$mol^{-1}$$ Heat of combustion of benzene =-3267.0 kJ $$mol^{-1}$$ The heat of formation of benzene is _ . (Nearest integer)

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NTA JEE Mains 28th Jan 2025 Shift 2 - Question 75


The spin only magnetic moment ( $$\mu$$) value (B.M.) of the compound with strongest oxidising power among $$Mn_{2}O_{3},$$ TiO and VO is ____ B.M. (Nearest integer).

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