Chemical Process Bleaching of paper pulp is done with Magnesium sulphite Bromine Activated clay Chlorine or chlorine dioxide Magnesium sulphite Bromine Activated clay Chlorine or chlorine dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Argon is the third largest constituent of air (followed by N₂ & O₂). Its percentage by volume in air is 0.34 0.14 0.94 1.4 0.34 0.14 0.94 1.4 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Chemical name of 'alum' is Aluminium chloride Barium sulphate Aluminium sulphate Calcium sulphate Aluminium chloride Barium sulphate Aluminium sulphate Calcium sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Permanent hardness of water can be removed by Passing it through cation & anion exchangers All of these Simply boiling Adding alum Passing it through cation & anion exchangers All of these Simply boiling Adding alum ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Hydrogenation of oil does not None of these Remove double bonds Improve its resistance to oxidation Raise its melting point None of these Remove double bonds Improve its resistance to oxidation Raise its melting point ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Molecular weights of polymers are in the range of 10⁵ - 10⁹ 10² - 10⁷ 10⁹ - 10¹¹ 10² - 10² 10⁵ - 10⁹ 10² - 10⁷ 10⁹ - 10¹¹ 10² - 10² ANSWER DOWNLOAD EXAMIANS APP
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