1
JEE Main 2019 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct decreasing order for acid strength is :
A
NO2CH2COOH > FCH2COOH > CNCH2COOH > ClCH2COOH
B
FCH2COOH > NCCH2COOH > NO2CH2COOH > ClCH2COOH
C
CNCH2COOH > O2NCH2COOH > FCH2COOH > ClCH2COOH
D
NO2CH2COOH > NCCH2COOH > FCH2COOH > ClCH2COOH
2
JEE Main 2018 (Online) 15th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
On treatment of the following compound with a strong acid, the most susceptible site for bond cleavage is :
JEE Main 2018 (Online) 15th April Evening Slot Chemistry - Basics of Organic Chemistry Question 221 English
A
Cl $$-$$ O2
B
O2 $$-$$ C3
C
C4 $$-$$ O5
D
O5 $$-$$ C6
3
JEE Main 2018 (Online) 15th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Two compounds I and II are eluted by column chromatography (adsorption of I > II). Which one of following is a correct statement ?
A
I moves faster and has higher Rf value than II
B
II movesfaster and has higher  Rf  value than I
C
I moves slower and has higher  Rf  value than II
D
II moves slower and has higher  Rf  value than I
4
JEE Main 2018 (Online) 15th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct match between items of List-I and List-II is :

List - I List - II
(A) Coloured impurity (P) Steam distilation
(B) Mixture of o-nitrophenol
and p-nitrophenol
(Q) Fractional distilation
(C) Crude Naphtha (R) Charcoal treatment
(d) Mixture of glycerol
and sugars
(S) Distillation under
reduced pressure
A
(A)-(R), (B)-(S), (C)-(P), (D)-(Q)
B
(A)-(R), (B)-(P), (C)-(S), (D)-(Q)
C
(A)-(R), (B)-(P), (C)-(Q), (D)-(S)
D
(A)-(P), (B)-(S), (C)-(R), (D)-(Q)
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