1
JEE Main 2019 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Amylopectin is compound of :
A
$$\alpha $$-D-glucose, C1 – C4 and C1 – C6 linkages
B
$$\beta $$-D-glucose, C1 – C4 and C2 – C6 linkages
C
$$\beta $$-D-glucose, C1 – C4 and C1 – C6 linkages
D
$$\alpha $$-D-glucose, C1 – C4 and C2 – C6 linkages
2
JEE Main 2019 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Consider the following table :

Gas a/(k Pa dm6 mol-1) b/(dm3 mol-1)
A 642.32 0.05196
B 155.21 0.04136
C 431.91 0.05196
D 155.21 0.4382

a and b are vander Waals constants. The correct statement about the gases is :
A
Gas C will occupy more volume than gas A; gas B will be more compressible than gas D
B
Gas C will occupy lesser volume than gas A; gas B will be more compressible than gas D
C
Gas C will occupy lesser volume than gas A; gas B will be lesser compressible than gas D
D
Gas C will occupy more volume than gas A; gas B will be lesser compressible than gas D
3
JEE Main 2019 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Consider the hydrated ions of Ti2+, V2+, Ti3+, and Sc3+. The correct order of their spin-only magnetic moments is :
A
Sc3+ < Ti3+ < V2+ < Ti2+
B
Sc3+ < Ti3+ < Ti2+ < V2+
C
Ti3+ < Ti2+ < Sc3+ < V2+
D
V2+ < Ti2+ < Ti3+ < Sc3+
4
JEE Main 2019 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Consider the statements S1 and S2

S1 : Conductivity always increases with decrease in the concentration of electrolyte.

S2 : Molar conductivity always increases with decrease in the concentration of electrolyte.

The correct option among the following is :
A
Both S1 and S2 are wrong
B
S1 is correct and S2 is wrong
C
Both S1 and S2 are correct
D
S1 is wrong and S2 is correct
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