111. Polythene is a/an __________ polymerisation product.
112. Pick out the wrong statement.
113. Wood charcoal is used for decolouration of sugar, because it __________ the coloured materials.
114. Production of one ton of dry paper pulp requires about __________ tons of bamboo or wood.
115. Consider the production of ammonia from methene and air as raw materials. The catalyst used are:
(i) __________ for steam reforming of methane and
(ii) __________ for ammonia synthesis.
(i) __________ for steam reforming of methane and
(ii) __________ for ammonia synthesis.
116. Pencillin is made employing __________ fermentation process.
117. For the hydrogenation of oils (i) __________ is commonly used as catalyst and (ii) __________ is a catalyst poison.
118. More than 100 percent of __________ is present in oleum.
119. Fire clay is __________ refractory material.
120. Pick out the wrong statement.
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