1
JEE Advanced 2013 Paper 1 Offline
MCQ (More than One Correct Answer)
+2
-0.5
The hyperconjugative stabilities of tert-butyl cation and 2-butene, respectively, are due to
A
$$\sigma \to p$$ (empty) and $$\sigma \to \pi^*$$ electron delocalisations
B
$$\sigma \to \sigma^*$$ and $$\sigma \to \pi$$ electron delocalisations
C
$$\sigma \to p$$ (filled) and $$\sigma \to \pi$$ electron delocalisations
D
p (filled) $$\to \sigma^*$$ and $$\sigma \to \pi^*$$ electron delocalisations
2
IIT-JEE 2012 Paper 2 Offline
MCQ (More than One Correct Answer)
+4
-2

Which of the given statement(s) about N, O, P and Q with respect to M is(are) correct?

IIT-JEE 2012 Paper 2 Offline Chemistry - Basics of Organic Chemistry Question 17 English

A
M and N are non-minor image stereoisomers.
B
M and O are identical.
C
M and P are enantiomers.
D
None of these.
3
IIT-JEE 2012 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-2

Which of the following molecules, in pure form, is(are) unstable at room temperature?

A
IIT-JEE 2012 Paper 1 Offline Chemistry - Basics of Organic Chemistry Question 18 English Option 1
B
IIT-JEE 2012 Paper 1 Offline Chemistry - Basics of Organic Chemistry Question 18 English Option 2
C
IIT-JEE 2012 Paper 1 Offline Chemistry - Basics of Organic Chemistry Question 18 English Option 3
D
IIT-JEE 2012 Paper 1 Offline Chemistry - Basics of Organic Chemistry Question 18 English Option 4
4
IIT-JEE 2011 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-2

Among the given options, the compound(s) in which all the atoms are in one plane in all the possible conformations (if any) is(are)

A
IIT-JEE 2011 Paper 1 Offline Chemistry - Basics of Organic Chemistry Question 16 English Option 1
B
IIT-JEE 2011 Paper 1 Offline Chemistry - Basics of Organic Chemistry Question 16 English Option 2
C
H2C = C = 0
D
H2C = C = CH2
JEE Advanced Subjects