MCQOPTIONS
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MCQOPTIONS
This section includes 1331 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 301. |
L.D. converter is used in the production of_________________? |
| A. | Pig iron |
| B. | Steel |
| C. | Copper |
| D. | Zinc |
| Answer» C. Copper | |
| 302. |
Laboratory glass wares which reacts with hydrofluoric acid, are made of the ______________ glass? |
| A. | Lead |
| B. | Borosilicate |
| C. | Soda lime |
| D. | Alkali silicate |
| Answer» C. Soda lime | |
| 303. |
Kopper-Totzek coal gasifier_________________? |
| A. | Can give ammonia synthesis gas (H2 + N2) |
| B. | Is a moving bed reactor |
| C. | Cannot use coking coal |
| D. | Operate at very high pressure |
| Answer» B. Is a moving bed reactor | |
| 304. |
Kaolin is a/an _____________________? |
| A. | Refractory material |
| B. | Synthetic resin |
| C. | Artificial abrasive |
| D. | Blue pigment |
| Answer» B. Synthetic resin | |
| 305. |
Isopropyl benzene produced by alkylation of benzene with propylene is known as _________________? |
| A. | Neoprene |
| B. | Cumene |
| C. | Gelatin |
| D. | Mercaptans |
| Answer» C. Gelatin | |
| 306. |
_______________ is used as a flux in the smelting of copper ore like chalcopyrite ? |
| A. | Coke breeze |
| B. | Lime powder |
| C. | Silica/quartz |
| D. | Dolomite |
| Answer» D. Dolomite | |
| 307. |
______________ is used as a flux in the extraction of iron from iron ore (haematite) in blast furnace? |
| A. | Bauxite |
| B. | Limestone |
| C. | Quartz |
| D. | Manganese |
| Answer» C. Quartz | |
| 308. |
_____________ is used as a catalyst in fat splitting ? |
| A. | ZnO |
| B. | Ni |
| C. | V2O5 |
| D. | FeO |
| Answer» B. Ni | |
| 309. |
________________ is the major constituent of the Portland cement? |
| A. | Calcium carbonate |
| B. | Calcium oxide |
| C. | Tricalcium silicate |
| D. | Calcium sulphate |
| Answer» D. Calcium sulphate | |
| 310. |
_________________ is produced using Polycondensation Reaction? |
| A. | Polythene |
| B. | Phenol formaldehyde |
| C. | Poly vinyl chloride |
| D. | None of these |
| Answer» C. Poly vinyl chloride | |
| 311. |
______________ is produced using molasses as the starting raw material ? |
| A. | Methyl alcohol |
| B. | Ethyl alcohol |
| C. | Benzol |
| D. | Dimethyl ether |
| Answer» C. Benzol | |
| 312. |
______________ is produced by the dehydrogenation of ethyl benzene ? |
| A. | Styrene |
| B. | Ethyl alcohol |
| C. | Cumene |
| D. | Phenol |
| Answer» B. Ethyl alcohol | |
| 313. |
______________ is obtained as a by-product in the manufacture of sodium hydroxide using brine ? |
| A. | Chlorine |
| B. | Ammonium chloride |
| C. | Sodium carbonate |
| D. | Sodium bi-carbonate |
| Answer» B. Ammonium chloride | |
| 314. |
_________________ is not a constituent of gun powder? |
| A. | Carbon |
| B. | Charcoal |
| C. | Sulphur |
| D. | Potassium nitrate |
| Answer» B. Charcoal | |
| 315. |
______________ is an ore of lead? |
| A. | Quartz |
| B. | Galena |
| C. | Siderite |
| D. | Chalcopyrite |
| Answer» C. Siderite | |
| 316. |
______________ is an ore concentrating metallurgical process involving a chemical change? |
| A. | Electromagnetic separation |
| B. | Froth floatation |
| C. | Roasting |
| D. | None of these |
| Answer» D. None of these | |
| 317. |
____________________ is a thermosetting plastic ? |
| A. | Polythene |
| B. | Epoxy polymer |
| C. | P.V.C. |
| D. | Polystyrene |
| Answer» C. P.V.C. | |
| 318. |
______________ is a thermosetting plastic? |
| A. | Polyvinyl chloride |
| B. | Polythene |
| C. | Bakelite |
| D. | Teflon |
| Answer» D. Teflon | |
| 319. |
____________ is a polysaccharide? |
| A. | Maltose |
| B. | Starch |
| C. | Sucrose |
| D. | Glucose |
| Answer» C. Sucrose | |
| 320. |
Iron ore hematite is concentrated using ____________________? |
| A. | Electromagnetic separation mainly |
| B. | Gravity separation |
| C. | Froth floatation |
| D. | Roasting |
| Answer» C. Froth floatation | |
| 321. |
___________________ iron is the purest form of iron? |
| A. | Cast |
| B. | Wrought |
| C. | Pig |
| D. | High silicon |
| Answer» C. Pig | |
| 322. |
Inversion of sucrose produces_____________________? |
| A. | Fructose |
| B. | Glucose |
| C. | Both A. & B. |
| D. | Neither A. nor B. |
| Answer» C. Both A. & B. | |
| 323. |
Insulin is an __________________ drug? |
| A. | Anti-malarial |
| B. | Anti-TB |
| C. | Antibiotic |
| D. | None of these |
| Answer» E. | |
| 324. |
Industrial production of chloroform requires acetone and_____________________? |
| A. | Phosgene |
| B. | Calcium hypochlorite |
| C. | Chlorine |
| D. | Ammonium chloride |
| Answer» C. Chlorine | |
| 325. |
In the Solvay process, the product from the calciner is___________________? |
| A. | Light soda ash |
| B. | Dense soda ash |
| C. | Sodium bicarbonate |
| D. | Dehydrated soda ash |
| Answer» B. Dense soda ash | |
| 326. |
In the production of soda ash by Solvay process, the by-product is____________________? |
| A. | CaCl2 |
| B. | NH4Cl |
| C. | NH3 |
| D. | NaOH |
| Answer» B. NH4Cl | |
| 327. |
In the manufacture of viscose rayon, the raw material used industrially is ____________________? |
| A. | Eucalyptus wood |
| B. | Bamboo |
| C. | Bagasse |
| D. | Fine teak wood |
| Answer» E. | |
| 328. |
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» B. Furnace → evaporator → absorber | |
| 329. |
In the manufacture of H2SO4, vanadium catalyst as compared to platinum catalyst___________________? |
| A. | Gives higher conversion efficiency |
| B. | Has a longer life and is not poisoned by arsenic |
| C. | Handles lower SO2 content gas (7 -10% SO2), thus increasing the capital cost of the plant |
| D. | All A , B. and C. |
| Answer» E. | |
| 330. |
In the Lurgi coal gasifier_________________? |
| A. | Coking coals cannot be used |
| B. | Low carbon conversion efficiency is achieved |
| C. | Entrainment of solids is higher |
| D. | Large quantity of coal can be processed |
| Answer» E. | |
| 331. |
In sulphate pulp manufacture, the pressure and temperature in the digestor is____________________? |
| A. | 10 atm., 800 °C |
| B. | 10 atm., 170-180°C |
| C. | 1 atm., 170 – 180°C |
| D. | 1 atm., 800°C |
| Answer» C. 1 atm., 170 – 180°C | |
| 332. |
In primitive days, _____________ was being manufactured by Leblanc Process ? |
| A. | Alum |
| B. | Washing soda |
| C. | Soda ash |
| D. | Calcium carbide |
| Answer» D. Calcium carbide | |
| 333. |
In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the__________________? |
| A. | Diamine and the ring |
| B. | Dibasic acid and the ring |
| C. | Diamine and the dibasic acid |
| D. | None of these |
| Answer» D. None of these | |
| 334. |
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 ? |
| A. | Increasing the oxygen concentration |
| B. | Putting more quantity of V2O5 catalyst in the converter |
| C. | Removing some quantity of SO3 during intermediate stage |
| D. | Maintaining low temperature & pressure in the converter |
| Answer» D. Maintaining low temperature & pressure in the converter | |
| 335. |
In Kraft process of paper manufacture, white cooking liquor consists of caustic soda________________? |
| A. | Sodium sulphide & sodium carbonate |
| B. | Sodium sulphite & sodium carbonate |
| C. | Sodium sulphite & sodium sulphide |
| D. | None of these |
| Answer» B. Sodium sulphite & sodium carbonate | |
| 336. |
In industrial nomenclature, alcohol means_________________? |
| A. | Butyl alcohol |
| B. | Propyl alcohol |
| C. | Ethanol |
| D. | Methyl alcohol |
| Answer» D. Methyl alcohol | |
| 337. |
In contact process, SO3 is absorbed in 97% H2SO4 and not in water, because___________________? |
| A. | SO3 gas is sparingly soluble in water |
| B. | Water forms an acid mist, which is difficult to absorb |
| C. | The purity of acid is affected |
| D. | Scale formation in the absorber is to be avoided |
| Answer» C. The purity of acid is affected | |
| 338. |
In an integrated steel plant, NH3 present in coke oven gas is normally recovered as_________________? |
| A. | (NH4)2SO4 |
| B. | NH4Cl |
| C. | (NH4)2 NO3 |
| D. | Liquid NH3 |
| Answer» B. NH4Cl | |
| 339. |
Impurities present in brine is normally removed by treatment with ? |
| A. | NH3 and CO2 |
| B. | Lime and soda ash |
| C. | Lime, ammonia and carbon |
| D. | All A , B. and C. |
| Answer» E. | |
| 340. |
Hydrophilic group of a soap or detergent solution is____________________? |
| A. | Water hating |
| B. | Soil loving |
| C. | Water loving |
| D. | None of these |
| Answer» D. None of these | |
| 341. |
Hydrolysis of sugar is called_____________________? |
| A. | Hydration |
| B. | Inversion |
| C. | Esterification |
| D. | None of these |
| Answer» C. Esterification | |
| 342. |
Hydrogenation of vegetable oils is a/an _______________ reaction ? |
| A. | Endothermic |
| B. | Autocatalytic |
| C. | Exothermic |
| D. | Homogenous |
| Answer» D. Homogenous | |
| 343. |
Hydrogenation of oil/fat does not_________________? |
| A. | Improve its resistance to rancid oxidation |
| B. | Raise its melting point |
| C. | Remove double bonds |
| D. | None of these |
| Answer» E. | |
| 344. |
Hydrogenation of oil takes place in a/an ____________________ reactor ? |
| A. | Autothermal |
| B. | Trickle bed |
| C. | Plug flow |
| D. | None of these |
| Answer» C. Plug flow | |
| 345. |
Hydrogenation of oil does not ___________________? |
| A. | Remove double bonds |
| B. | Raise its melting point |
| C. | Improve its resistance to oxidation |
| D. | None of these |
| Answer» E. | |
| 346. |
Hydrogenation of edible vegetable oils_________________? |
| A. | Is an exothermic reaction |
| B. | Increases their melting point |
| C. | Is done in presence of nickel catalyst |
| D. | All A , B. and C. |
| Answer» E. | |
| 347. |
Hydrogen gas is not produced commercially (for nitrogenous fertiliser manufacture) by _____________________? |
| A. | Iron-steam reaction |
| B. | Electrolysis of water |
| C. | Steam reforming of naphtha |
| D. | Its cryogenic separation from coke oven gas |
| Answer» B. Electrolysis of water | |
| 348. |
Hydrocyanic acid (HCN) is used as an insecticide for____________________? |
| A. | Controlling timber degradation by ants |
| B. | Controlling poultry lice |
| C. | Potato beetle |
| D. | Citrus fruits |
| Answer» E. | |
| 349. |
Hydrochloric acid is also known as_________________? |
| A. | Oil of vitriol |
| B. | Muriatic acid |
| C. | Strong organic acid |
| D. | Green acid |
| Answer» C. Strong organic acid | |
| 350. |
Hydrazine (N2H4) is used mainly as a/an__________________? |
| A. | Explosive |
| B. | Rocket fuel |
| C. | Detergents additive |
| D. | None of these |
| Answer» C. Detergents additive | |