NTA JEE Main 9th January 2019 Shift 2

For the following reaction, the mass of water produced from 445 g of $$C_{57}H_{110}O_6$$ is:
$$2 \; C_{57}H_{110}O_6(s) + 163O_2(g) \rightarrow 114 \; CO_2(g) + 110H_2O(l)$$

Which of the following combination of statements is true regarding the interpretation of the atomic orbitals?
(A) An electron in an orbital of high angular momentum stays away from the nucleus than an electron in the orbital of lower angular momentum.
(B) For a given value of the principal quantum number, the size of the orbit is inversely proportional to the azimuthal quantum number.
(C) According to wave mechanics, the ground state angular momentum is equal to $$\frac{h}{2\pi}$$.
(D) The plot of $$\psi$$ Vs $$r$$ for various azimuthal quantum numbers, shows peak shifting towards higher $$r$$ value.

When the first electron gain enthalpy $$(\Delta H_{eg})$$ of oxygen is $$-141$$ kJ/mol, its second electron gain enthalpy is:

In which of the following processes, the bond order has increased and paramagnetic character has changed to diamagnetic?

The entropy change associated with the conversion of 1 kg of ice at 273 K to water vapours at 383 K is: (Specific heat of water liquid and water vapour are 4.2 kJ K$$^{-1}$$ and 2.0 kJ K$$^{-1}$$ kg$$^{-1}$$; heat of liquid fusion and vaporization of water are 334 kJ kg$$^{-1}$$ and 2491 kJ kg$$^{-1}$$, respectively). (log 273 = 2.436, log 373 = 2.572, log 383 = 2.583)

The temporary hardness of water is due to:

The metal that forms nitride by reacting directly with $$N_2$$ of air is:

Which of the following compounds is not aromatic?

The pH of rain water is approximately:

Which of the following conditions in drinking water causes methemoglobinemia?