MCQOPTIONS
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MCQOPTIONS
This section includes 480 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Process Calculation knowledge and support exam preparation. Choose a topic below to get started.
| 351. |
In deducing Boyles law from kinetic equation of gases constant is |
| A. | 2/3kT |
| B. | 4/3kT |
| C. | 7/3kT |
| D. | 9/3kT |
| Answer» B. 4/3kT | |
| 352. |
Plasma is present in about visible universe about |
| A. | 80% |
| B. | 99% |
| C. | 78% |
| D. | 60% |
| Answer» C. 78% | |
| 353. |
Gas liquefies into liquid at |
| A. | low pressure |
| B. | low temperature |
| C. | low volume |
| D. | low density |
| Answer» C. low volume | |
| 354. |
High temperature is favorable for occurrence of |
| A. | plasma |
| B. | solid |
| C. | liquid |
| D. | gas |
| Answer» B. solid | |
| 355. |
When gases diffuse they tend to equalize the |
| A. | partial pressure |
| B. | volume |
| C. | area |
| D. | temperature |
| Answer» B. volume | |
| 356. |
Powdered Al(s) reacts vigorously with oxygen and the product is |
| A. | Al₂O₃(s) |
| B. | Al₄O₆(s) is formed on further oxidation |
| C. | Al₂O₄(s) |
| D. | AlO(aq) |
| Answer» B. Al₄O₆(s) is formed on further oxidation | |
| 357. |
In order to attain the electronic configuration of a noble gas, Nitrogen needs |
| A. | 1 electron |
| B. | 2 electrons |
| C. | 3 electrons |
| D. | more than 3 electrons |
| Answer» D. more than 3 electrons | |
| 358. |
Nitrogen (N₂) is a/an |
| A. | unstable Electron affinity element |
| B. | non-metallic element |
| C. | Period 2 element |
| D. | all of above |
| Answer» E. | |
| 359. |
Upon dissolving NO₂(g) in water droplets, Nitric acid (HNO₃) is formed. The acid falls in the form of acid rain causing |
| A. | alkalinity of soil |
| B. | acidity of soil |
| C. | Neutralization of soil |
| D. | temperature of soil |
| Answer» C. Neutralization of soil | |
| 360. |
Mole fraction of each gas is always less than |
| A. | two |
| B. | three |
| C. | unity |
| D. | four |
| Answer» D. four | |
| 361. |
To prove charle's law temperature is taken in |
| A. | high temperature |
| B. | Fahrenheit scale |
| C. | Kelvin scale |
| D. | centigrade scale |
| Answer» D. centigrade scale | |
| 362. |
R is known as |
| A. | molar gas constant |
| B. | volume constant |
| C. | pressure constant |
| D. | temperature constant |
| Answer» B. volume constant | |
| 363. |
Joule Thomson effect describes gases' |
| A. | contraction |
| B. | sudden expansion |
| C. | expansion |
| D. | relaxion |
| Answer» C. expansion | |
| 364. |
Boyle's law is used only for |
| A. | non ideal gases |
| B. | light gases |
| C. | ideal gases |
| D. | heavy gases |
| Answer» D. heavy gases | |
| 365. |
Pilot feels uncomfortable at high altitudes because of difference in |
| A. | partial pressure of oxygen |
| B. | partial pressure of hydrogen |
| C. | partial pressure of helium |
| D. | partial pressure of carbon dioxide |
| Answer» B. partial pressure of hydrogen | |
| 366. |
Fourth state of matter was identified in |
| A. | 1867 |
| B. | 1879 |
| C. | 1857 |
| D. | 1843 |
| Answer» B. 1879 | |
| 367. |
Plasma is also known as |
| A. | heat |
| B. | energy |
| C. | fourth state of matter |
| D. | fantasy |
| Answer» D. fantasy | |
| 368. |
PV=nRT is called as |
| A. | general equation |
| B. | general gas equation |
| C. | linear gas equation |
| D. | quadratic gas equation |
| Answer» C. linear gas equation | |
| 369. |
Gases can be compressed because of |
| A. | empty spaces |
| B. | large volume |
| C. | shape |
| D. | molecules |
| Answer» B. large volume | |
| 370. |
The catalyst to oxidize SO₂ to SO₃ is |
| A. | Nickel |
| B. | V₂O₅ |
| C. | UV light |
| D. | amylase |
| Answer» C. UV light | |
| 371. |
Upon heating ammonium salts with a base, NH₃(g) is given off. The nature of this gas is |
| A. | acidic |
| B. | alkaline |
| C. | catalyst |
| D. | neutral (pH: 7) |
| Answer» C. catalyst | |
| 372. |
Tiny droplets of water (sulfuric acid solution) in clouds are |
| A. | an essential component of Nitrogen cycle |
| B. | not related to nitrogen cycle |
| C. | most damaging in trees of high altitudes |
| D. | none of above |
| Answer» D. none of above | |
| 373. |
The concentration of gas is proportional to the |
| A. | volume |
| B. | pressure |
| C. | density |
| D. | temperature |
| Answer» C. density | |
| 374. |
Plasma can also be used to remove |
| A. | dust |
| B. | hazardous chemicals |
| C. | vapors |
| D. | colors |
| Answer» C. vapors | |
| 375. |
Gas molecules have large number of |
| A. | empty spaces |
| B. | surfaces |
| C. | contaminants |
| D. | nuclei |
| Answer» B. surfaces | |
| 376. |
Charle's law defines value of 'k' as |
| A. | V/n |
| B. | V/V |
| C. | V/P |
| D. | V/T |
| Answer» E. | |
| 377. |
Plasma have property that they are not degenerated |
| A. | instantly |
| B. | over a period of time |
| C. | in space |
| D. | at storage |
| Answer» B. over a period of time | |
| 378. |
In pressure correction attraction per unit volume is represented by |
| A. | b |
| B. | c |
| C. | d |
| D. | a |
| Answer» E. | |
| 379. |
Between temperature and volume of gas Charle's law determines |
| A. | qualitative relationship |
| B. | quantitative relationship |
| C. | non-polar relationship |
| D. | correlation |
| Answer» C. non-polar relationship | |
| 380. |
One meter cube is equal to |
| A. | 100 dm cube |
| B. | 1000 dm cube |
| C. | 10 dm cube |
| D. | 50 dm cube |
| Answer» B. 1000 dm cube | |
| 381. |
In van der Waal equation n/V represents moles of a gas per |
| A. | cm cube |
| B. | dm cube |
| C. | m cube |
| D. | mm cube |
| Answer» C. m cube | |
| 382. |
Charle's law was given in |
| A. | 1797 |
| B. | 1767 |
| C. | 1747 |
| D. | 1787 |
| Answer» E. | |
| 383. |
Molecules of gas helium are |
| A. | diatomic |
| B. | triatomic |
| C. | monoatomic |
| D. | tetraatomic |
| Answer» D. tetraatomic | |
| 384. |
Kelvin scale starts from |
| A. | 173 |
| B. | 273 |
| C. | 293 |
| D. | 283 |
| Answer» C. 293 | |
| 385. |
Graham law was discovered by |
| A. | Peter Graham |
| B. | David graham |
| C. | Thomas Graham |
| D. | Dalton Graham |
| Answer» D. Dalton Graham | |
| 386. |
Element that does not react with Chlorine gas (Cl₂) is |
| A. | Si(s) |
| B. | Mg(s) |
| C. | Ar(g) |
| D. | P(s) |
| Answer» D. P(s) | |
| 387. |
Nucleic acids and chlorophyll are synthesized by the help of |
| A. | nitrogen |
| B. | carbon |
| C. | fossils |
| D. | leaves |
| Answer» B. carbon | |
| 388. |
The value of R gas constant is 8.31 JK⁻¹mol⁻¹ |
| A. | 8.31JK⁻¹ |
| B. | 8.31JK⁻¹mol⁻¹ |
| C. | 8.30JK⁻¹mol⁻¹ |
| D. | 8.37JK⁻¹mol⁻¹ |
| Answer» C. 8.30JK⁻¹mol⁻¹ | |
| 389. |
Durian fruit has a very strong smell which is mostly found in |
| A. | Malaysia only |
| B. | Indonesia only |
| C. | Maldives |
| D. | Malaysia and Indonesia |
| Answer» E. | |
| 390. |
Plasma which occurs naturally is usually |
| A. | more |
| B. | rare |
| C. | hidden |
| D. | not present |
| Answer» C. hidden | |
| 391. |
Attractive forces among gas molecules become more at |
| A. | high pressure and low temperature |
| B. | high temperature only |
| C. | high pressure only |
| D. | low temperature |
| Answer» B. high temperature only | |
| 392. |
Any thing can be vaporized when it comes in contact with |
| A. | vacuum |
| B. | ice |
| C. | natural plasma |
| D. | ions |
| Answer» D. ions | |
| 393. |
Critical temperature for oxygen is |
| A. | 123K |
| B. | 145K |
| C. | 154.4K |
| D. | 178K |
| Answer» D. 178K | |
| 394. |
Volume of lessened pressure is increased when volume of vessel used is |
| A. | greater |
| B. | undefined |
| C. | small |
| D. | large |
| Answer» D. large | |
| 395. |
Square root of 3RT/M gives us |
| A. | square root of density |
| B. | Root mean square velocity |
| C. | mean square velocity |
| D. | mean pressure |
| Answer» C. mean square velocity | |
| 396. |
After collision molecules of gases are |
| A. | scattered |
| B. | combined |
| C. | compacted |
| D. | dissociate |
| Answer» B. combined | |
| 397. |
In deducing Graham's law of diffusion constant is |
| A. | under root of 3P |
| B. | under root of 4V |
| C. | under root of 6P |
| D. | under root of 4P |
| Answer» B. under root of 4V | |
| 398. |
Laws described for gases are independent of |
| A. | volume of gas |
| B. | nature of gas |
| C. | temperature of gas |
| D. | pressure of gas |
| Answer» C. temperature of gas | |
| 399. |
In method of liquefaction of gases quantity which falls is |
| A. | surface area |
| B. | density |
| C. | volume |
| D. | temperature |
| Answer» E. | |
| 400. |
Linde's method for liquefaction is based upon |
| A. | Joule Thomson effect |
| B. | hydrogen effect |
| C. | pressure effect |
| D. | volume effect |
| Answer» B. hydrogen effect | |