1
JEE Main 2020 (Online) 2nd September Evening Slot
MCQ (Single Correct Answer)
+4
-1
Arrange the following labelled hydrogens in decreasing order of acidity : JEE Main 2020 (Online) 2nd September Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 116 English
A
b > c > d > a
B
b > a > c > d
C
c > b > d > a
D
c > b > a > d
2
JEE Main 2020 (Online) 2nd September Evening Slot
MCQ (Single Correct Answer)
+4
-1
Two compounds A and B with same molecular formula (C3H6O) undergo Grignard’s reaction with methylmagnesium bromide to give products C and D. Products C and D show following chemical tests. JEE Main 2020 (Online) 2nd September Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 115 English
C and D respectively are :
A
JEE Main 2020 (Online) 2nd September Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 115 English Option 1
B
JEE Main 2020 (Online) 2nd September Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 115 English Option 2
C
JEE Main 2020 (Online) 2nd September Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 115 English Option 3
D
JEE Main 2020 (Online) 2nd September Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 115 English Option 4
3
JEE Main 2020 (Online) 2nd September Evening Slot
MCQ (Single Correct Answer)
+4
-1
An organic compound ‘A’ (C9H10O) when treated with conc. HI undergoes cleavage to yield compounds ‘B’ and ‘C’. ‘B’ gives yellow precipitate with AgNO3 where as ‘C’ tautomerizes to ‘D’. ‘D’ gives positive iodoform test. ‘A’ could be
A
JEE Main 2020 (Online) 2nd September Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 114 English Option 1
B
JEE Main 2020 (Online) 2nd September Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 114 English Option 2
C
JEE Main 2020 (Online) 2nd September Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 114 English Option 3
D
JEE Main 2020 (Online) 2nd September Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 114 English Option 4
4
JEE Main 2020 (Online) 2nd September Evening Slot
MCQ (Single Correct Answer)
+4
-1
The correct observation in the following reactions is : JEE Main 2020 (Online) 2nd September Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 113 English
A
Formation of blue colour
B
Formation of violet colour
C
Formation of red colour
D
Gives no colour
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