1
JEE Main 2020 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
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
2
JEE Main 2020 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
'X' melts at low temperature and is a bad conductor of electricity in both liquid and solid state. X is :
A
Mercury
B
Carbon tetrachloride
C
Zinc sulphide
D
Silicon carbide
3
JEE Main 2020 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
If enthalpy of atomisation for Br2(1) is x kJ/mol and bond enthalpy for Br2 is y kJ/mol, the relation between them :
A
does not exist
B
is x < y
C
is x > y
D
is x = y
4
JEE Main 2020 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The increasing order of basicity for the following intermediates is (from weak to strong)
JEE Main 2020 (Online) 9th January Morning Slot Chemistry - Basics of Organic Chemistry Question 127 English 1 JEE Main 2020 (Online) 9th January Morning Slot Chemistry - Basics of Organic Chemistry Question 127 English 2 JEE Main 2020 (Online) 9th January Morning Slot Chemistry - Basics of Organic Chemistry Question 127 English 3 JEE Main 2020 (Online) 9th January Morning Slot Chemistry - Basics of Organic Chemistry Question 127 English 4 JEE Main 2020 (Online) 9th January Morning Slot Chemistry - Basics of Organic Chemistry Question 127 English 5
A
(iii) < (i) < (ii) < (iv) < (v)
B
(iii) < (iv) < (ii) < (i) < (v)
C
(v) < (i) < (iv) < (ii) < (iii)
D
(v) < (iii) < (ii) < (iv) < (i)
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