1
JEE Main 2020 (Online) 2nd September Evening Slot
MCQ (Single Correct Answer)
+4
-1
Consider the reaction sequence given below: JEE Main 2020 (Online) 2nd September Evening Slot Chemistry - Basics of Organic Chemistry Question 78 English
Which of the following statements is true?
A
Changing the concentration of base will have no effect on reaction (1)
B
Changing the concentration of base will have no effect on reaction (2)
C
Changing the base from OH- to -OR will have no effect on reaction (2)
D
Doubling the concentration of base will double the rate of both the reactions
2
JEE Main 2020 (Online) 2nd September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Which of the following compunds will show retention in configuration on nucleophilic substitution by OH ion?
A
JEE Main 2020 (Online) 2nd September Morning Slot Chemistry - Basics of Organic Chemistry Question 81 English Option 1
B
JEE Main 2020 (Online) 2nd September Morning Slot Chemistry - Basics of Organic Chemistry Question 81 English Option 2
C
JEE Main 2020 (Online) 2nd September Morning Slot Chemistry - Basics of Organic Chemistry Question 81 English Option 3
D
JEE Main 2020 (Online) 2nd September Morning Slot Chemistry - Basics of Organic Chemistry Question 81 English Option 4
3
JEE Main 2020 (Online) 2nd September Morning Slot
MCQ (Single Correct Answer)
+4
-1
The IUPAC name for the following compound is JEE Main 2020 (Online) 2nd September Morning Slot Chemistry - Basics of Organic Chemistry Question 80 English
A
2, 5-dimethyl-6-carboxy-hex-3-enal
B
6-formyl-2-methyl-hex-3-enoic acid
C
2, 5-dimethyl-5-carboxy-hex-3-enal
D
2, 5-dimethyl-6-oxo-hex-3-enoic acid
4
JEE Main 2020 (Online) 9th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Which of the following has the shortest C-Cl bond?
A
Cl–CH=CH–CH3
B
Cl–CH=CH–NO2
C
Cl–CH=CH–OCH3
D
Cl–CH=CH2
JEE Main Subjects
EXAM MAP
Joint Entrance Examination
JEE MainJEE AdvancedWB JEE
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Medical
NEET