NTA JEE Main 8th April2023 Shift 1

The correct order of electronegativity for given elements is

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Butan-1-ol has higher boiling point than ethoxyethane.
Reason R: Extensive hydrogen bonding leads to stronger association of molecules.
In the light of the above statements, choose the correct answer from the options given below :

$$2IO_3^- + xI^- + 12H^+ \rightarrow 6I_2 + 6H_2$$ What is the value of x?

Given below are two statements:
Statement I: Lithium and Magnesium do not form superoxide
Statement II: The ionic radius of Li$$^+$$ is larger than ionic radius of Mg$$^{2+}$$
In the light of the above statements, choose the most appropriate answer from the questions given below:

What is the purpose of adding gypsum to cement?

Match List I with List II
List-I (Species)                           List-2 (Maximum allowed concentration in ppm in drinking water)
A. F$$^-$$                                              I. < 50 ppm
B. SO$$_4^{2-}$$                                         II. < 5 ppm
C. NO$$_3^-$$                                          III. < 2 ppm
D. Zn                                              IV. < 500 ppm
Choose the correct answer from the options given below.

The reaction occurs in which of the given galvanic cell?
$$\dfrac{1}{2}H_2(g) + AgCl(s) \rightleftharpoons H^+(aq) + Cl^-(aq) + Ag(s)$$

The water gas on reacting with cobalt as a catalyst forms

Which of the following represents the Freundlich adsorption isotherms?
(A)

(B)

(C)

(D)

Choose the correct answer from the options given below:

Which of the following metals can be extracted through alkali leaching technique?