Which of the following organic compounds could not be dried by anhydrous CaCl2?
Ethanol
Benzene
Chloroform
Ethyl acetate
A.
Ethanol
Ethanol could not be dried by anhydrous CaCl2 because it reacts with CaCl2 as follows-
CaCl2 + 4C2H5OH → CaCl2 . 4C2H5OH
[Cr(NH3)6][Cr(SCN)6] and [Cr(NH3)2(SCN)4] [Cr(NH3)4(SCN)2] are the examples of what type of isomerism?
Ionisation isomerism
Linkage isomerism
Coordination isomerism
Solvate isomerism
Which among the following functional groups has been given the highest priority while assigning R-S configuration?
-C6H5
-CN
-C2H5
-CH3
If 'n' represents total number of asymmetric carbon atoms in a compound then the possible number of optical isomers of the compound is
2n
2n
n2
2n+2
In assigning R-S configuration, which among the following groups has highest priority?
-SO3H
-COOH
-CHO
-C6H5
Which of the following compounds has lowest boiling point?
n-butyl alcohol
lso-butyl alcohol
Tert-butyl alcohol
Sec-butyl alcohol
Lassaigne's test (with silver nitrate) is commonly used to detect halogens such as chlorine, bromine and iodine but not useful to detect fluorine because the product AgF formed is
Volatile
Reactive
Explosive
Soluble in water
Cycloheptatrienyl cation is
Non-benzenoid and non-aromatic
Non-benzenoid and aromatic
Benzenoid and non-aromatic
Benzenoid and aromatic
The major product obtained by the addition reaction of HBr to 4-methylpent-1-ene in the presence of peroxide is
1-bromo-4-methylpentane
4-bromo-2-methylpentane
2-bromo-4-methylpentane
3-bromo-2-methylpentane