NTA JEE Main 4th September 2020 Shift 2

Instructions

For the following questions answer them individually

NTA JEE Main 4th September 2020 Shift 2 - Question 31


If the equilibrium constant for $$A \rightleftharpoons B + C$$ is $$K_{eq}^{(1)}$$ and that of $$B + C \rightleftharpoons P$$ is $$K_{eq}^{(2)}$$, the equilibrium constant for $$A \rightleftharpoons P$$ is:

NTA JEE Main 4th September 2020 Shift 2 - Question 32


An alkaline earth metal 'M' readily forms water soluble sulphate and water insoluble hydroxide. Its oxide MO is very stable to heat and does not have rock-salt structure. M is

NTA JEE Main 4th September 2020 Shift 2 - Question 33


Which of the following compounds will form the precipitate with aq. AgNO$$_3$$ solution most readily?

NTA JEE Main 4th September 2020 Shift 2 - Question 34


Among the following compounds, which one has the shortest C-Cl bond?

NTA JEE Main 4th September 2020 Shift 2 - Question 35


The processes of calcination and roasting in metallurgical industries, respectively, can lead to:

NTA JEE Main 4th September 2020 Shift 2 - Question 36


250 mL of a waste solution obtained from the workshop of a goldsmith contains 0.1 M AgNO$$_3$$ and 0.1 M AuCl. The solution was electrolyzed at 2 V by passing a current of 1 A for 15 minutes. The metal/metals electrodeposited will be: $$\left(E^0_{Ag^+/Ag} = 0.80V, E^0_{Au^+/Au} = 1.69V\right)$$

NTA JEE Main 4th September 2020 Shift 2 - Question 37


A sample of red ink (a colloidal suspension) is prepared by mixing eosine dye, egg white, HCHO and water. The component which ensures stability of the ink sample is:

NTA JEE Main 4th September 2020 Shift 2 - Question 38


The incorrect statement(s) among (a) - (c) is (are):
(a) W(VI) is more stable than Cr(VI).
(b) in the presence of HCl, permanganate titrations provide satisfactory results.
(c) some lanthanoid oxides can be used as phosphors.

NTA JEE Main 4th September 2020 Shift 2 - Question 39


The Crystal Field Stabilization Energy (CFSE) of $$[CoF_3(H_2O)_3]$$ $$(\Delta_0 < P)$$ is:

NTA JEE Main 4th September 2020 Shift 2 - Question 40


The one that can exhibit highest paramagnetic behaviour among the following is: gly = glycinato; bpy = 2, 2'-bipyridine

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