1
JEE Main 2019 (Online) 11th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
In the following compound,

JEE Main 2019 (Online) 11th January Evening Slot Chemistry - Basics of Organic Chemistry Question 114 English

the favourable site/s for protonation is/are :
A
(b), (c) and (d)
B
(a) and (e)
C
(a) and (d)
D
(a)
2
JEE Main 2019 (Online) 11th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
The correct match between items I and II is :

Item-I (Mixture) Item-II (Seperation method)
(A) H2O : Sugar (P) Sublimation
(B) H2O : Aniline (Q) Recrystallization
(C) H2O : Toluene
(R) Steam distillation
(S) Differential extraction
A
A$$ \to $$(R); (B)$$ \to $$(P); (C)$$ \to $$(S)
B
A$$ \to $$(Q); (B)$$ \to $$(R); (C)$$ \to $$(S)
C
A$$ \to $$(Q); (B)$$ \to $$(P); (C)$$ \to $$(R)
D
A$$ \to $$(S); (B)$$ \to $$(R); (C)$$ \to $$(P)
3
JEE Main 2019 (Online) 10th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
What is the IUPAC name of the following compound ?

JEE Main 2019 (Online) 10th January Evening Slot Chemistry - Basics of Organic Chemistry Question 116 English
A
4–Bromo-3-methylpent-2-ene
B
3–Bromo 1, 2-dimethylbut-1-ene
C
3–Bromo-3-methyl-1, 2-dimethylprop-1-ene
D
2-Bromo-3-methylpent-3-ene
4
JEE Main 2019 (Online) 10th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
If dichloromethane (DCM) and water (H2O) are used for differential extraction, which one of the following statements is correct ?
A
DCM and H2O would stay as upper and lower layer respectively in the separating funnel (S.F.)
B
DCM and H2O will make turbid/colloidal mixture
C
DCM and H2O would stay as lower and upper layer respectively in the separating funnel(S.F).
D
DCM and H2O will be miscible clearly
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