1
JEE Main 2021 (Online) 25th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Match List I with List II :

List-I
Example of colloids
List - II
Classification
(a) Cheese (i) dispersion of liquid in liquid
(b) Pumice stone (ii) dispersion of liquid in gas
(c) Hair cream (iii) dispersion of gas in solid
(d) Cloud (iv) dispersion of liquid in solid

Choose the most appropriate answer from the options given below
A
(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
B
(a)-(iv), (b)-(i), (c)-(iii), (d)-(ii)
C
(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
D
(a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
2
JEE Main 2021 (Online) 25th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
What is the major product "P" of the following reaction?

JEE Main 2021 (Online) 25th July Evening Shift Chemistry - Compounds Containing Nitrogen Question 101 English
A
JEE Main 2021 (Online) 25th July Evening Shift Chemistry - Compounds Containing Nitrogen Question 101 English Option 1
B
JEE Main 2021 (Online) 25th July Evening Shift Chemistry - Compounds Containing Nitrogen Question 101 English Option 2
C
JEE Main 2021 (Online) 25th July Evening Shift Chemistry - Compounds Containing Nitrogen Question 101 English Option 3
D
JEE Main 2021 (Online) 25th July Evening Shift Chemistry - Compounds Containing Nitrogen Question 101 English Option 4
3
JEE Main 2021 (Online) 25th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Identify the process in which change in the oxidation state is five :
A
$$C{r_2}O_7^{2 - } \to 2C{r^{3 + }}$$
B
$$MnO_4^ - \to M{n^{2 + }}$$
C
$$CrO_4^{2 - } \to C{r^{3 + }}$$
D
$${C_2}O_4^{2 - } \to 2C{O_2}$$
4
JEE Main 2021 (Online) 25th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Which among the following is the strongest acid ?
A
$$C{H_3}C{H_2}C{H_2}C{H_3}$$
B
JEE Main 2021 (Online) 25th July Evening Shift Chemistry - Basics of Organic Chemistry Question 116 English Option 2
C
JEE Main 2021 (Online) 25th July Evening Shift Chemistry - Basics of Organic Chemistry Question 116 English Option 3
D
JEE Main 2021 (Online) 25th July Evening Shift Chemistry - Basics of Organic Chemistry Question 116 English Option 4
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