1
JEE Main 2020 (Online) 3rd September Morning Slot
MCQ (Single Correct Answer)
+4
-1
The antifertility drug “Novestrol” can react with :
A
Br2 /water; ZnCl2 /HCl; FeCl3
B
Br2 /water; ZnCl2 /HCl; NaOCl
C
Alcoholic HCN; NaOCl; ZnCl2 /HCl
D
ZnCl2 /HCl; FeCl3 ; Alcoholic HCN
2
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
3
JEE Main 2020 (Online) 2nd September Evening Slot
MCQ (Single Correct Answer)
+4
-1
If you spill a chemical toilet cleaning liquid on your hand, your first aid would be
A
aqueous NaOH
B
aqueous NaHCO3
C
aqueous NH3
D
vinegar
4
JEE Main 2020 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
A chemist has 4 samples of artificial sweetener A, B, C and D. To identify these samples, he performed certain experiments and noted the following observations :

(i) A and D both form blue-violet colour with ninhydrin.

(ii) Lassaigne extract of C gives positive AgNO3 test and negative Fe4[Fe(CN)6]3 test.

(iii) Lassaigne extract of B and D gives positive sodium nitroprusside test

Based on these observations which option is correct ?
A
A : Aspartame ; B : Alitame ; C : Saccharin ; D ; Sucralose
B
A : Alitame ; B : Saccharin ; C : Aspartame ; D ; Sucralose
C
A : Aspartame ; B : Saccharin ; C : Sucralose ; D ; Alitame
D
A : Saccharin ; B : Alitame ; C : Sucralose ; D ; Aspartame
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