1
JEE Main 2023 (Online) 1st February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The complex cation which has two isomers is :

A
$$\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{5} \mathrm{Cl}\right]^{+}$$
B
$$\left[\mathrm{Co}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{3+}$$
C
$$\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{5} \mathrm{NO}_{2}\right]^{2+}$$
D
$$\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{5} \mathrm{Cl}\right]^{2+}$$
2
JEE Main 2023 (Online) 1st February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The structures of major products A, B and C in the following reaction are sequence.

JEE Main 2023 (Online) 1st February Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 60 English

A
JEE Main 2023 (Online) 1st February Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 60 English Option 1
B
JEE Main 2023 (Online) 1st February Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 60 English Option 2
C
JEE Main 2023 (Online) 1st February Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 60 English Option 3
D
JEE Main 2023 (Online) 1st February Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 60 English Option 4
3
JEE Main 2023 (Online) 1st February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The graph which represents the following reaction is :

JEE Main 2023 (Online) 1st February Evening Shift Chemistry - Alcohols, Phenols and Ethers Question 54 English

A
JEE Main 2023 (Online) 1st February Evening Shift Chemistry - Alcohols, Phenols and Ethers Question 54 English Option 1
B
JEE Main 2023 (Online) 1st February Evening Shift Chemistry - Alcohols, Phenols and Ethers Question 54 English Option 2
C
JEE Main 2023 (Online) 1st February Evening Shift Chemistry - Alcohols, Phenols and Ethers Question 54 English Option 3
D
JEE Main 2023 (Online) 1st February Evening Shift Chemistry - Alcohols, Phenols and Ethers Question 54 English Option 4
4
JEE Main 2023 (Online) 1st February Evening Shift
Numerical
+4
-1
Change Language

Among following compounds, the number of those present in copper matte is ___________.

A. $$\mathrm{CuCO_{3}}$$

B. $$\mathrm{Cu_{2}S}$$

C. $$\mathrm{Cu_{2}O}$$

D. $$\mathrm{FeO}$$

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