NTA JEE Main 6th September 2020 Shift 2

The increasing order of the boiling points of the major products A, B and C of the following reactions will be:

The correct match between Item-I (starting material) and Item-II (reagent) for the preparation of benzaldehyde is:
Item-I                            Item-II
(I) Benzene                   (P) HCl and $$\text{SnCl}_2$$, $$\text{H}_3\text{O}^+$$
(II) Benzonitrile            (Q) $$\text{H}_2$$, $$\text{Pd-BaSO}_4$$, S and quinoline
(III) Benzoyl Chloride    (R) Co, HCl and $$\text{AlCl}_3$$

Which of the following compounds can be prepared in good yield by Gabriel phthalimide synthesis?

The correct match between item-I and item-II is:
Item-I                       Item-II
(a) Natural rubber    (I) 1,3-butadiene + styrene
(b) Neoprene           (II) 1,3-butadiene
(c) Buna-N              (III) chloroprene
(d) Buna-S              (IV) Isoprene

Which one of the following statement is not true?

The atomic number of Unnilunium is______.

If the solubility product of $$\text{AB}_2$$ is $$3.20 \times 10^{-11}\,\text{M}^3$$, then the solubility of $$\text{AB}_2$$ in pure water is ______ $$\times 10^{-4}\,\text{mol L}^{-1}$$ [Assuming that neither kind of ion reacts with water]

The rate of a reaction decreased by 3.555 times when the temperature was changed from $$40\,^\circ\text{C}$$ to $$30\,^\circ\text{C}$$. The activation energy (in $$\text{kJ mol}^{-1}$$) of the reaction is______.

For Freundlich adsorption isotherm, a plot of $$\log(x/m)$$ (y-axis) and $$\log p$$ (x-axis) gives a straight line, the intercept and slope for the line is 0.4771 and 2, respectively. The mass of gas, adsorbed per gram of adsorbent if the initial pressure is 0.04 atm is ______ $$\times 10^{-4}\,\text{g}$$.

A solution of phenol in chloroform when treated with aqueous NaOH gives compound P as a major product. The mass percentage of carbon in P is______.