1
JEE Main 2020 (Online) 3rd September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Glycerol is separated in soap industries by :
A
Fractional distillation
B
Distillation under reduced pressure
C
Differential extraction
D
Steam distillation
2
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 90 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
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 92 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
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