In Duma's method for estimation of nitrogen, 0.25 g of an organic compound gave 40 mL of nitrogen collected at 300 K temperature and 725 mm pressure. If the aqueous tension at 300 K is 25 mm, the percentage of nitrogen in the compound is
A
16.75
B
15.76
C
17.36
D
18.20
2
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
The enolic form of ethyl accetoacetate as shown below has
A
9 sigma bonds and 2 pi-bonds
B
9 sigma bonds and 1 pi-bond
C
18 sigma bonds and 2 pi-bonds
D
16 sigma bonds and 1 pi-bond.
3
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
In which of the following compounds, the C$$-$$Cl bond ionisation shall give most stable carbonium ion?
A
B
C
D
4
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Consider the following compounds :
Hyperconjunction occurs in