NTA JEE Main 31st January 2023 Shift 1

Instructions

For the following questions answer them individually

NTA JEE Main 31st January 2023 Shift 1 - Question 31


Which transition in the hydrogen spectrum would have the same wavelength as the Balmer type transition from n = 4 to n = 2 of He$$^+$$ spectrum

NTA JEE Main 31st January 2023 Shift 1 - Question 32


The correct increasing order of the ionic radii is

NTA JEE Main 31st January 2023 Shift 1 - Question 33


Match List I with List II
List I   List II
A. XeF$$_4$$   I. See-saw
B. SF$$_4$$   II. Square planar
C. NH$$_4^+$$   III. Bent T-shaped
D. BrF$$_3$$   IV. Tetrahedral
Choose the correct answer from the options given below:

NTA JEE Main 31st January 2023 Shift 1 - Question 34


$$H_2O_2$$ acts as a reducing agent in

NTA JEE Main 31st January 2023 Shift 1 - Question 35


Match items of column I and II

image

NTA JEE Main 31st January 2023 Shift 1 - Question 36


Choose the correct set of reagents for the following conversion
trans Ph - CH = CH - CH$$_3$$ $$\rightarrow$$ cis Ph - CH = CH - CH$$_3$$

NTA JEE Main 31st January 2023 Shift 1 - Question 37


Which one of the following statements is correct for electrolysis of brine solution?

NTA JEE Main 31st January 2023 Shift 1 - Question 38


Adding surfactants in non polar solvent, the micelles structure will look like
(a)

image

(b)

image

(c)

image

(d)

image

NTA JEE Main 31st January 2023 Shift 1 - Question 39


The methods NOT involved in concentration of ore are
(A) Liquation
(B) Leaching
(C) Electrolysis
(D) Hydraulic washing
(E) Froth floatation
Choose the correct answer from the options given below:

NTA JEE Main 31st January 2023 Shift 1 - Question 40


Identify X, Y and Z in the following reaction. (Equation not balanced)
$$ClO^. + NO_2 \rightarrow X \xrightarrow{H_2O} Y + Z$$

banner

banner
cracku

Boost your Prep!

Download App