1
JEE Main 2021 (Online) 18th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Reagent, 1-napthylamine and sulphanilic acid in acetic acid is used for the detection of
A
N2O
B
NO$$_3^ - $$
C
NO
D
NO$$_2^ - $$
2
JEE Main 2021 (Online) 18th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
A non-reducing sugar "A" hydrolyses to give two reducing mono saccharides. Sugar A is
A
Fructose
B
Galactose
C
Glucose
D
Sucrose
3
JEE Main 2021 (Online) 18th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
JEE Main 2021 (Online) 18th March Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 140 English
Consider the above chemical reaction and identify product "A"
A
JEE Main 2021 (Online) 18th March Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 140 English Option 1
B
JEE Main 2021 (Online) 18th March Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 140 English Option 2
C
JEE Main 2021 (Online) 18th March Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 140 English Option 3
D
JEE Main 2021 (Online) 18th March Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 140 English Option 4
4
JEE Main 2021 (Online) 18th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Match List - I with List - II

List - I
List - II
(a) Chlorophyll (i) Ruthenium
(b) Vitamin-$${B_{12}}$$ (ii) Platinum
(c) Anticancer drug (iii) Cobalt
(d) Grubbs catalyst (iv) Magnesium


Choose the most appropriate answer from the options given below :
A
(a) - (iii), (b) - (ii), (c) - (iv), (d) - (i)
B
(a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)
C
(a) - (iv), (b) - (iii), (c) - (i), (d) - (ii)
D
(a) - (iv), (b) - (ii), (c) - (iii), (d) - (i)
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