1. Sodium carbonate (soda ash) is not used in the manufacture of

2. Nitric acid is not used in the manufacture of

3. The basic constituent of vegetable oils is

4. Cellulose percentage in bamboo fibre is about

5. In premitive days, __________ was being manufactured by Leblanc Process.

6. Removal of dirt/soil by soaps or detergent does not involve the __________ of soil.

7. Nylon 6-6 is manufactured from

8. CO & H₂ are the constituents of

9. Polymerisation product of C₂F4 (carbon tetraflouride) is called P.T.F.E (poly chloro tetra flouro ethylene). It is also called

10. Hydrochloric acid is also known as

11. Which of the following is a co-product during the manufacture of caustic soda by electrolysis of brine?

12. ‘Hollander beater’ machine used in the paper manufacturing plant does not accomplish the task of

13. Coke used for the production of calcium carbide should have

14. In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the

15. Nylon-6 is manufactured from

16. Oil is a/an

17. Saponification value/number of an oil or fat is a measure of its

18. High acid value of an oil or fat is an indication of

19. Oleum produces fumes of

20. Dry ice (solidified CO₂) is used for the

21. Which one of the following is not an elastomer?

22. Unsaturated oils compared to saturated oils have

23. Superior quality laboratory apparatus is made of the __________ glass having low thermal co-efficient of expansion & high chemical resistance.

24. DDT should not be allowed to come in contact with iron (during its manufacture) to

25. __________ iron is the purest form of iron.

26. Liquefaction of gases can not be done by

27. Function of thinner in a paint is to

28. __________ process is used for the manufacture of sodium carbonate by ammonia soda process.

29. __________ acid is the main constituent of cotton seed oil.

30. Which one of the following is not likely to be a constituent of vegetable oils?

31. Main constituents of cotton fiber is

32. Major component of flint glass is

33. Which of the following is the main constituent of the mother liquor produced in salt industry?

34. Process conditions in fermentator used for production of penicillin is

35. Ordinary glass is not a/an

36. Absorption of SO₃ in 97% H₂SO₄ is

37. The most reactive allotropic form of phosphorus is __________ phosphorus.

38. Phosphoric acid is prepared from

39. Hydrogen gas is not produced commercially (for nitrogeneous fertiliser manufacture) by

40. Sea water contains about __________ ppm of bromine.

41. Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about __________ °C.

42. Purity of oxygen used for blowing in steel making L.D. converter is 99.5%. The boiling point of oxygen is about __________ °C.

43. Parathion and Malathion are

44. Pasteurisation of milk means

45. Argon is the third largest constituent of air (followed by N₂ & O₂). Its percentage by volume in air is

46. Pick out the true statement pertaining to water treatment.

47. Pick out the false statement pertaining to water treatment.

48. Phenol formaldehyde

49. Phenol is mainly used

50. Phthalic anhydride is used

51. Pick out the wrong statement.

52. Plaster of Paris is

53. Cement setting under water employs a/an __________ process.

54. Extraction of __________ employs an electrolytic process.

55. Polyvinyl chloride (PVC) is

56. ‘Synthesis gas’ meant for the synthesis of organic compound is a variable mixture of

57. Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of

58. Le-Blanc process is a primitive process for the manufacture of

59. A ‘unit process’ is exemplified by the

60. Oil produced by solvent extraction

61. Conversion of SO₂ to SO₃ in Monsanto 4-pass converter is about __________ percent.

62. L.D. converter is used in the production of

63. 90% of the caprolactum is converted to nylon-6 on its condensation polymerisation in the reactor maintained at __________ °C.

64. Setting of plaster of paris is accompanied with

65. With increase in temperature, the equilibrium constant at constant pressure (Kp) for oxidation of sulphur dioxide

66. Hydrazine is used in water treatment for the removal of

67. Very dilute solutions are generally used in fermentation reactions for which the optimum temperature range is __________ °C.

68. Chloramines are used in water treatment for

69. Pick out the endothermic reaction out of the following.

70. Pick out the exothermic reaction out of the following:

71. Grignard reagent is chemically known as

72. Out of the following processes of paper pulp manufacture, the maximum corrosion problem in digestion & handling equipments is encountered in the __________ process.

73. Styrene butadiene rubber (SBR) is

74. Starting material for the production of styrene butadiene rubber (SBR) is

75. Permanent hardness of water is due to the presence of calcium & magnesium

76. Riboflavin is a/an

77. Yellow glycerine is made into white, using

78. Percentage of glycerene present in the spent lye obtained during soap manufacture is about

79. Gun powder, which is an explosive comprises of charcoal, sulphur and

80. Adipic acid is an intermediate in the manufacture of

81. Proximate analysis of coal determines its __________ content.

82. Ultimate analysis of coal determines its __________ content.

83. A substance produced by a living organism and capable of anti-microbial activity is called a/an

84. Producer gas consists mainly of

85. Pick out the wrong statement.

86. Hydrogenation of oil/fat does not

87. Builders are added in soap to act as

88. __________ is used as a catalyst in fat splitting.

89. Sucrose is a disaccharide consisting of

90. __________ is an ore concentrating metallurgical process involving a chemical change.

91. Hydrodenation of vegetable oils is a/an __________ reaction.

92. Most easily and cheaply available fibrous raw material for paper manufacture available in India is bamboo. The yield of pulp produced from fibrous raw material by mechanical process is about __________ percent.

94. Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at __________ °C.

95. Pick out the wrong statement.

96. Phthalic anhydride is produced by the oxidation of

97. __________ process is used for producing soda ash.

98. Fat dispersed in water is exemplified by

99. Shaving soaps are

100. Silicon carbide is a/an

101. Silicone is a/an

102. Pig iron is produced by blast furnaces in India using mostly the iron ore named

103. In multistage equilibrium conversion of SO₂ to SO₃ (2SO₂ + O₂ ⇋ 2SO₃), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO₂ to SO₃ can be increased by

104. Which of the following is used as a binding material in soap to improve soap texture?

105. Soaps remove dirt by

106. Which allotrope of sulphur is insoluble in carbon disulphide?

107. Solvent extracted oil

108. Pick out the wrong statement.

109. Solvay process is not used for the manufacture of potassium carbonate, because of the reason that potassium bicarbonate

110. Transparent soaps (e.g. Pears) are

111. Most widely and commonly used coagulant for the removal of suspended impurities in water is

112. Claude process of gas liquefaction employs

113. Linde process of gas liquefaction employs

114. Production of alcohol by fermentation of molasses is an __________ process.

115. Nickel is not used as a catalyst in the __________ reaction.

116. Main constituents of natural rubber is

117. The type of high refractive index glass used in optical instruments is __________ glass.

118. Sucrose is a

119. Platinum catalyst used in the earlier days of sulphuric acid manufacture by contact process suffers from the drawback like

120. Synthesis gas is a mixture of

121. Systemic insecticides

122. __________ is not a constituent of gun powder.

123. Air used in aerobic fermentation must be sterilized, otherwise the

124. Raw materials used for producing __________ cement does not contain iron oxide.

125. Alum [Al2(SO₄)₃] is used as a coagulant in water treatment to remove

126. Glauber’s salt is chemically represented by

127. Vegetable oils contain large quantity of glycerides of unsaturated acids. When the vegetable oils contain high amount of saturated fatty acids, it is termed as __________ oil.

128. An alkali metal salt of palmitic acid is known as

129. Which form of sulphur is the most stable at room temperature?

130. Alcohol percentage in molasses may be around

131. Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its

132. Triple superphosphate is manufactured by reacting

133. Teflon is

134. In sulphate pulp manufacture, the pressure and temperature in the digestor is

135. Drinking (potable) water treatment does not involve

136. Esterification reaction produces

137. Sodium salt of higher molecular weight fatty acid is termed as the __________ soap.

138. Terylene is

139. The chamber process is

140. A cane sugar factory having sugar production rate of 10 tons/day will produce about __________ tons/day of bagasse (after consumption by the factory for heating etc.).

141. Which of the following is a detergent?

142. Which of the following is a detergent?

143. The main use of HCl is in the

144. The major use of butadiene is

145. One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to

146. The most commonly used substance to speed up the sedimentation of sewage is

147. Thermoplastic materials

148. Thermosetting materials

149. Thorium is mainly used

150. Styrene is produced from ethyl benzene by the process of

151. Styrene is produced from ethyl benzene by the process of

152. Poly tetraflouro ethylene (P.T.F.E.) is known as

153. Zeolite is a/an

154. Synthetic glycerine is produced from

155. Dehydrogenation of ethyl benzene produces

156. Pick out the wrong statement pertaining to solvent extraction of oil.Rate of extraction

157. Catalyst used in the oxidation of benzene to produce maleic anhydride is

158. The enzyme which converts starch into the disacharides maltose is

159. Trinitro-toluene (TNT) is

160. Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used

161. Shrinkage volume in cement setting does not depend upon the

162. Maleic anhydride is produced by catalytic oxidation of

163. Which of the following is not a product of coal tar distillation?

164. Mercury electrolytic cells are preferred over diaphragm electrolytic cell (for production of caustic soda), as it

165. Pick out the wrong statement.

166. __________ of quicklime produces slaked lime.

167. Oils are partially hydrogenated (not fully) to manufacture vanaspati, because fully saturated solidified oils

168. Which of the following fuel gases contains maximum amount of carbon monoxide?

169. Potassium is kept & transported under

170. Sulphur addition in soap is done to

171. Bromides contained in hot mother liquor is treated with __________ during manufacture of bromine from sea water.

172. Roasting of metallurgical ores is done mainly to

173. Lurgi coal gasifier is a pressurised __________ bed reactor.

174. Manufacture of phthalic anhydride uses __________ as a catalyst.

175. Pure rectified spirit contains about __________ percent alcohol.

176. Vanillin is a type of

177. Varnish does not contain

178. Varnish does not contain

179. In the production of soda ash by Solvay process, the by-product is

180. Use of water having dissolved oxygen in boilers promotes

181. Chrome tanning and vegetable tanning are done for

182. Refractory bricks burnt at very high temperature have got

183. Viscose rayon

184. Viscose rayon is

185. Viscose rayon is chemically

186. Vulcanisation of rubber

187. The biochemical treatment applied to sewage effluents is a process of

188. Washing of coal is done to

189. Wax is a

190. Molecular weight of plastics ranges from

191. Which is a high grade pulp?

192. Higher vicosity index of a lubricating oil denotes

193. Acetone is produced by catalytic dehydrogenation of

194. Highly porous refractory bricks are

195. __________ is produced by the dehydrogenation of ethyl benzene.

196. Fluorescent dyes are added in detergents to

197. Alkylbenzene sulfonate (ABS) is a

198. Wet chlorine gas produced during electrolysis of brine is dehydrated by

199. The catalyst used in shift converter is

200. Zeigler process

Previous ArticleNext Article

Leave a Reply

Your email address will not be published. Required fields are marked *