A
B
C
D
E
Correct answer is D
The boiling points of each of the compounds:
Pentane - 36.1°C ; 2- methylbutane - 27.8°C ; dimethylpropane - 10°C.
Therefore, the order of boiling point in ascending order is Dimethylpropane < 2-methylbutane < pentane.
Which of the following compounds will take up the molecules of bromine?
l
ll
lll
l and ll
l and lll
Correct answer is B
No explanation has been provided for this answer.
The IUPAC name for the compound is
2,3-dimethylpent-2,3-ene
2, 3- dimethylpent-2-ene
3, 4-dimethylpent-3-ene
3,4-dimethylpentene
3,4-dimethlhept-2-ene
Correct answer is B
The IUPAC name of the given compound(carefully examined) is 2,3 - dimethyl pent - 2 - ene.
pure nitrogen
a mixture of nitrogen and oxygen
a mixture of nitrogen and carbondioxide
a mixture of oxygen and inert gases
a mixture of nitrogen and inert gases
Correct answer is E
Alkaline solutions of pyrogallol absorb oxygen efficiently and are used in determining the oxygen content of gas mixtures.
calcium chloride absorbs sufficient moisture/water from the air.
So,Nitrogen and Inert gases will be left
Which of the structural formal above is ethanoic acid is
A
B
C
D
E
Correct answer is E
Ethanoic acid is CH3COOH
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