Structure of the compound whose IUPAC name is 3-ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid is
The order of stability of the following tautomeric compound is
I>Ii>III
III > II>I
Ii> I> III
Ii> I> III
The radical because it has
6 p -orbitals and 6 unpaired electrons
7 p- orbitals and 6 unpaired electrons
7 p- orbitals and 7 unpaired electrons
7 p- orbitals and 7 unpaired electrons
The structure of isobutyl group in an organic compound is
A.
'Iso' mean one Me group is present six chain. Hence, the structure of isobutyl group in an organic compound is
(Yl' suffix is used to represent one -H less than the parent hydrocarbon.)
What is the activation energy for a reaction if its rate doubles when the temperature is raised from 200C to 350C ?(R=8.314 J mol-1 K-1).
342 kJ mol-1
269 kJ mol-1
34.7 kJ mol-1
34.7 kJ mol-1
At 250 molar conductance of 0.1 molar aqueous solutions of ammonium hydroxide is 9.54 ohm-1 cm2 mol-1 and at infinite dilution, its molar conductance is 238 ohm-1 cm2 mol-1. The degree of ionisation of ammonium hydroxide at the same concentration and temperature is
2.080%
20.800%
4.008%
4.008%
A button cell used in watches functions as following
The cell potential will be
1.10 V
0.42 V
0.84 V
0.84 V