Chemical Process

Question: Nylon 66 is so named because the [A]. average degree of polymerisation of the polymer is 1966. [B]. number of carbon atoms between two nitrogen atoms are 6. [C]. number of nitrogen atoms between two carbon atoms are 6 [D]. polymer was first synthesised in 1966. Answer: Option A Explanation: No answer description available…

Question: 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. [A]. i – Ni/Al2O3; ii – Cu – ZnO/Al2O3 [B]. i – Fe/Al2O3; ii – Cu – ZnO/Al2O3 [C]. i – Ni/Al2O3; ii – Fe/Al2O3…

Question: In the manufacture of sulphuric acid from elemental sulphur, the following sequence of major operations is followed : [A]. furnace → converter → absorber [B]. furnace → evaporator → absorber [C]. furnace → converter → evaporator [D]. converter → furnace → absorber Answer: Option A Explanation: No answer description available for this question.

Question: In industrial nomenclature, alcohol means [A]. butyl alcohol [B]. propyl alcohol [C]. ethanol [D]. methyl alcohol Answer: Option C Explanation: No answer description available for this question.

Question: Flash point of most vegetable oils is about __________ °C. [A]. 50 [B]. 100 [C]. 200 [D]. 300 Answer: Option C Explanation: No answer description available for this question.

Question: For the hydrogenation of oils __________ (A) __________ is commonly used as catalyst and __________ (B) __________ is a catalyst poison. [A]. (A) platinum (B) sulphur [B]. (A) palladium (B) oxygen [C]. (A) nickel (B) sulphur [D]. (A) nickel (B) oxygen Answer: Option C Explanation: No answer description available for this question.

Question: 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 [A]. adjust the pH of the syrup. [B]. remove the coloring matter from the syrup. [C]. reduce the viscosity of the…

Question: Nickel is not used as a catalyst in the [A]. Fischer-Tropsch process. [B]. shift conversion. [C]. hydrogenation of oil. [D]. Ostwald’s process of HNO3 manufacture. Answer: Option D Explanation: No answer description available for this question.

Question: White phosphorous is stored under water, because [A]. it does not react with water. [B]. it is poisonous. [C]. its kindling temperature in dry air is very low. [D]. it is unstable. Answer: Option C Explanation: No answer description available for this question.

Question: Wood charcoal is used for decolouration of sugar, because it __________ the coloured materials. [A]. adsorbs [B]. oxidises [C]. reduces [D]. converts Answer: Option A Explanation: No answer description available for this question.