NTA JEE Main 6th April 2023 Shift 2

Instructions

For the following questions answer them individually

NTA JEE Main 6th April 2023 Shift 2 - Question 31


If the radius of the first orbit of hydrogen atom is $$a_0$$, then de Broglie's wavelength of electron in 3$$^{rd}$$ orbit is

NTA JEE Main 6th April 2023 Shift 2 - Question 32


Which one of the following elements will remain as liquid inside pure boiling water?

NTA JEE Main 6th April 2023 Shift 2 - Question 33


Group-13 elements react with O$$_2$$ in amorphous form to form oxides of type M$$_2$$O$$_3$$ (M = element). Which among the following is the most basic oxide?

NTA JEE Main 6th April 2023 Shift 2 - Question 34


During the reaction of permanganate with thiosulphate, the change in oxidation of manganese occurs by value of 3. Identify which of the below medium will favour the reaction.

NTA JEE Main 6th April 2023 Shift 2 - Question 35


The volume of 0.02 M aqueous HBr required to neutralize 10.0 mL of 0.01 M aqueous Ba(OH)$$_2$$ is (Assume complete neutralization)

NTA JEE Main 6th April 2023 Shift 2 - Question 36


Ion having highest hydration enthalpy among the given alkaline earth metal ions is:

NTA JEE Main 6th April 2023 Shift 2 - Question 37


Structures of BeCl$$_2$$ in solid state, vapour phase and at very high temperature respectively are:

NTA JEE Main 6th April 2023 Shift 2 - Question 38


From the figure of column chromatography given below, identify incorrect statements.

image


A. Compound 'c' is more polar than 'a' and 'b'
B. Compound 'a' is least polar
C. Compound 'b' comes out of the column before 'c' and after 'a'
D. Compound 'a' spends more time in the column
Choose the correct answer from the options given below

NTA JEE Main 6th April 2023 Shift 2 - Question 39


The strongest acid from the following is

NTA JEE Main 6th April 2023 Shift 2 - Question 40


The group of chemicals used as pesticide is

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