1
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+
2
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
3
JEE Main 2019 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Ethylamine (C2H5NH2) can be obtained from N-ethylphatalimide on treatment with :
A
CaH2
B
H2O
C
NaBH4
D
NH2NH2
4
JEE Main 2019 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Increasing rate of SN1 reaction in the following compounds is : JEE Main 2019 (Online) 10th April Morning Slot Chemistry - Haloalkanes and Haloarenes Question 131 English
A
(B) < (A) < (D) < (C)
B
(A) < (B) < (C) < (D)
C
(A) < (B) < (D) < (C)
D
(B) < (A) < (C) < (D)
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