1
JEE Advanced 2017 Paper 1 Offline
Numerical
+3
-0
Among $${H_2},H{e_2}^ + ,L{i_2},$$ $$B{e_2},{B_2},{C_2},{N_2},O_2^ - $$ and $${F_2},$$ the number of diamagnetic species is

(Atomic numbers : $$H = 1,He = 2,$$ $$Li = 3,Be = 4,$$ $$B = 5,C = 6,$$ $$N = 7,$$ $$O = 8,F = 9$$)
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2
JEE Advanced 2017 Paper 1 Offline
Numerical
+3
-0
Among the following, the number of aromatic compound(s) is

JEE Advanced 2017 Paper 1 Offline Chemistry - Basics of Organic Chemistry Question 32 English
Your input ____
3
JEE Advanced 2017 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1
Columns 1, 2 and 3 contain starting materials, reaction conditions, and type of reactions, respectively.

Column 1 Column 2 Column 3
(I) Toluene (i) NaOH/Br2 (P) Condensation
(II) Acetophenone (ii) Br2/hv (Q) Carboxylation
(III) Benzaldehyde (iii) (CH3CO)2O/
CH3COOK
(R) Substitution
(IV) Phenol (iv) NaOH/CO2 (S) Haloform
For the synthesis of benzoic acid, the only CORRECT combination is
A
(II) (i) (S)
B
(IV) (ii) (P)
C
(I) (iv) (Q)
D
(III) (iv) (R)
4
JEE Advanced 2017 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-1
The correct statements(s) for the following addition reactions is (are)

JEE Advanced 2017 Paper 1 Offline Chemistry - Basics of Organic Chemistry Question 33 English
A
$$O$$ and $$P$$ are identical molecules
B
($$M$$ and $$O$$) and ($$N$$ and $$P$$) are two pairs of diastereomers
C
($$M$$ and $$O$$) and ($$N$$ and $$P$$) are two pairs of enantiomers
D
Bromination proceeds through trans-addition in both the reactions
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