NTA JEE Main 13th April 2023 Shift 1

Instructions

For the following questions answer them individually

NTA JEE Main 13th April 2023 Shift 1 - Question 41


Which one of the following is most likely a mismatch?

NTA JEE Main 13th April 2023 Shift 1 - Question 42


The incorrect statement from the following for borazine is:

NTA JEE Main 13th April 2023 Shift 1 - Question 43


The pair of lanthanides in which both elements have high third-ionization energy is:

NTA JEE Main 13th April 2023 Shift 1 - Question 44


The mismatched combinations are
A. Chlorophyll $$-$$ Co
B. Water hardness $$-$$ EDTA
C. Photography $$-$$ [Ag(CN)$$_2$$]$$^-$$
D. Wilkinson catalyst $$-$$ [(Ph$$_3$$P)$$_3$$RhCl]
E. Chelating ligand $$-$$ D $$-$$ Penicillamine
Choose the correct answer from the options given below.

NTA JEE Main 13th April 2023 Shift 1 - Question 45


2-Methyl propyl bromide reacts with C$$_2$$H$$_5$$O$$^-$$ and gives 'A' whereas on reaction with C$$_2$$H$$_5$$OH it gives 'B'. The mechanism followed in these reactions and the products 'A' and 'B' respectively are:

NTA JEE Main 13th April 2023 Shift 1 - Question 46


In the reaction given below

image


An amino alcohol reacts with (i) HCl (ii) KOH to give 'B' Major product. 'B' is:

NTA JEE Main 13th April 2023 Shift 1 - Question 47



In the above reaction, left hand side and right hand side rings are named as 'A' and 'B' respectively. They undergo ring expansion. The correct statement for this process is:

image

NTA JEE Main 13th April 2023 Shift 1 - Question 48


D $$-$$ (+) $$-$$ Glyceraldehyde $$\xrightarrow{\text{i) HCN}}$$ $$\xrightarrow{\text{ii) H}_2\text{O/H}^+}$$ $$\xrightarrow{\text{iii) HNO}_3}$$
The products formed in the above reaction are

NTA JEE Main 13th April 2023 Shift 1 - Question 49


A cyclic amide (lactam) reacts with (i) NaOH, $$\Delta$$ (ii) H$$^+$$ to give 'A' (Major Product).

image


'A' is:

NTA JEE Main 13th April 2023 Shift 1 - Question 50


Match the following

Column-AColumn-B
aNylon 6INatural Rubber
bVulcanized RubberIICross Linked
ccis-1, 4-polyisopreneIIICaprolactam
dPolychloropreneIVNeoprene

Choose the correct answer from options given below:
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