1
JEE Main 2023 (Online) 13th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Which of the following statements are not correct?

A. The electron gain enthalpy of $$\mathrm{F}$$ is more negative than that of $$\mathrm{Cl}$$.

B. Ionization enthalpy decreases in a group of periodic table.

C. The electronegativity of an atom depends upon the atoms bonded to it.

D. $$\mathrm{Al}_{2} \mathrm{O}_{3}$$ and $$\mathrm{NO}$$ are examples of amphoteric oxides.

Choose the most appropriate answer from the options given below :

A
A, B, C and D
B
A, C and D Only
C
A, B and D Only
D
B and D Only
2
JEE Main 2023 (Online) 13th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

In the following reaction 'X' is

JEE Main 2023 (Online) 13th April Morning Shift Chemistry - Haloalkanes and Haloarenes Question 53 English

A
$$\mathrm{CH}_{3}\left(\mathrm{CH}_{2}\right)_{4} \mathrm{CH}_{2} \mathrm{Cl}$$
B
JEE Main 2023 (Online) 13th April Morning Shift Chemistry - Haloalkanes and Haloarenes Question 53 English Option 2
C
$$\mathrm{Cl}-\mathrm{CH}_{2}-\left(\mathrm{CH}_{2}\right)_{4}-\mathrm{CH}_{2}-\mathrm{Cl}$$
D
JEE Main 2023 (Online) 13th April Morning Shift Chemistry - Haloalkanes and Haloarenes Question 53 English Option 4
3
JEE Main 2023 (Online) 13th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

In the reaction given below

JEE Main 2023 (Online) 13th April Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 69 English

'A' is

A
JEE Main 2023 (Online) 13th April Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 69 English Option 1
B
JEE Main 2023 (Online) 13th April Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 69 English Option 2
C
JEE Main 2023 (Online) 13th April Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 69 English Option 3
D
JEE Main 2023 (Online) 13th April Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 69 English Option 4
4
JEE Main 2023 (Online) 13th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The mismatched combinations are

A. Chlorophyll - Co

B. Water hardness - EDTA

C. Photography $$-\left[\mathrm{Ag}(\mathrm{CN})_{2}\right]^{-}$$

D. Wilkinson catalyst $$-\left[\left(\mathrm{Ph}_{3} \mathrm{P}\right)_{3} \mathrm{RhCl}\right]$$

E. Chelating ligand - D-Penicillamine

Choose the correct answer from the options given below :

A
A and E Only
B
D and E Only
C
A and C Only
D
A, C, and E Only
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