Brown ring in the test of NO3- is formed due to the formation of :
FeSO4 . NO
[Fe(SO4)2 . NO] H2O
Fe(SO4)3 . NO
none of these
Which kind of fission is favoured by sunlight ?
Heterolytic fission
Homolytic fission
Both (a) and (b)
None of the above
Which type of isomerism is shown by propanal and propanone ?
Functional group
Metamerism
Tautomerism
Chain isomerism
The correct order of ease of dehydration of following is :
I > II > III
III > II > I
I > III > II
III > I > II
Among the following L-serine is
C.
A rule of thumb for determining D/L isomeric form of an amino acid is the corn rule. The groups: COOH, R, NH2 and H (where R is an unnamed carbon chain) are arranged around the chiral center carbon atom. Sighting from the hydrogen atom, if these groups are arranged counterclockwise around the carbon atom, then it is the D-form. If clockwise, it is the L-form. According to priority order :-NH2,- COOH,- CH2OH,-H.
Among the following which one can have a meso form?
CH3CH(OH)CH(Cl)C2H5
CH3CH(OH)CH(OH)CH3
C2H5CH(OH)CH(OH)CH3
HOCH2CH(Cl)CH3
The major product obtained on the monobromination (with Br2/FeBr3) of the following compound A is
Among the following the most stable compound is
cis-1,2-cyclohexanediol
trans-1,2-cyclohexanediol
cis-1,3-cyclohexanadiol
trans-1,3-cyclohexanediol.