111)Froth floatation method is used for
112)Aluminum is extracted from which of the following ores?
113)Which of the following methods is used for the purification of metal?
114)Number of unhybridized p orbitals around each carbon in C2H4 molecule is
115)The product formed in the reaction of carboxylic acid and an alcohol in the presence of cone. H2SO4 is an
116)The formula of Chloroform is
117)Which of the following is a Saturate Hydrocarbon?
118)The alkane which can show isomerism is
119)The process of conversion of starches and sugars to Ethyl alcohol is called as
120)Which of the following is not a conductor of electricity?
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