Question 13 : A substance which ionises to produce hydroxide ions is called __________.
Base
Salt
None of the above
Acid
Question 14 : A chief source of benzene and its derivatives is __________.
Bitumen
Limestone
Coaltar
Basalt
Question 15 : A chief source of benzene and its derivatives is __________.
Bitumen
Basalt
Coaltar
Limestone
Question 16 : A functional group that introduces polarity leads to __________ in the molecule.
increase saturation point
Permanent dipole moment
increase melting point
increase boiling point
1
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2017-03-03T17:59:55-0500
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