Organic Chemistry
Some Basic Concepts of Organic Chemistry
MCQ (Single Correct Answer)MCQ (Multiple Correct Answer)
Alcohol, Phenols and Ethers
MCQ (Single Correct Answer)
Aldehydes, Ketones and Carboxylic Acids
MCQ (Single Correct Answer)MCQ (Multiple Correct Answer)
Organic Compounds Containing Nitrogen
MCQ (Single Correct Answer)
Chemistry in Everyday Life
MCQ (Single Correct Answer)
1
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

Which amongst the following is incorrect statement?

A
The bond orders of O$$_2^ + $$, O2, O$$_2^ - $$ and O$$_2^ {2-} $$ are 2.5, 2, 1.5 and 1, respectively
B
C2 molecule has four electrons in its two degenerate $$\pi$$ molecular orbitals
C
H$$_2^ + $$ ion has one electron
D
O$$_2^ + $$ ion is diamagnetic
2
NEET 2021
MCQ (Single Correct Answer)
+4
-1
BF3 is planar and electron deficient compound. Hybridization and number of electrons around the central atom, respectively are :
A
sp2 and 8
B
sp3 and 4
C
sp3 and 6
D
sp2 and 6
3
NEET 2021
MCQ (Single Correct Answer)
+4
-1
Match List - I with List - II :

List - I List - II
(a) $$PC{l_5}$$ (i) Square pyramidal
(b) $$S{F_6}$$ (ii) Trigonal planar
(c) $$Br{F_5}$$ (iii) Octahedral
(d) $$B{F_3}$$ (iv) Trigonal bipyramidal


Choose the correct answer from the options given below.
A
(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
B
(a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
C
(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
D
(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
4
NEET 2021
MCQ (Single Correct Answer)
+4
-1
The correct sequence of bond enthalpy of 'C-X' bond is :
A
CH3 - Cl > CH3 - F > CH3 - Br > CH3 - l
B
CH3 - F < CH3 - Cl < CH3 - Br < CH3 - l
C
CH3 - F > CH3 - Cl > CH3 - Br > CH3 - l
D
CH3 - F < CH3 - Cl > CH3 - Br > CH3 - l
NEET Subjects