MCQOPTIONS
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MCQOPTIONS
This section includes 634 Mcqs, each offering curated multiple-choice questions to sharpen your Boolean Algebra and Logic Simplification knowledge and support exam preparation. Choose a topic below to get started.
| 351. |
In chromatography, different pigments can be separated through |
| A. | diffusion differences |
| B. | solubility differences |
| C. | capillary action of the chromatography paper |
| D. | attraction among particles |
| Answer» C. capillary action of the chromatography paper | |
| 352. |
Sound waves can pass through |
| A. | air only |
| B. | vacuum |
| C. | vacuum and other states of matter |
| D. | air and other states of matter |
| Answer» E. | |
| 353. |
One lady is wearing high heels and other one is wearing flat shoes. Whose shoes are going to get stuck in the mud? |
| A. | The flat shoes |
| B. | The high heels |
| C. | None of them |
| D. | Both of them |
| Answer» C. None of them | |
| 354. |
The resistivity of lead is |
| A. | 20.8 * 10-8 Ωm |
| B. | 22.5 * 10-8 Ωm |
| C. | 5 Ωm |
| D. | 10 Ωm |
| Answer» B. 22.5 * 10-8 Ωm | |
| 355. |
In plants, movement of water across the cell wall is |
| A. | referred to as plasmodesmata |
| B. | plasmodesmata |
| C. | referred to as apoplast pathways |
| D. | referred to as symplast pathways |
| Answer» D. referred to as symplast pathways | |
| 356. |
Which of these can not be assessed by an examiner or a physician? |
| A. | Signs |
| B. | Symptoms |
| C. | asthma |
| D. | stress |
| Answer» C. asthma | |
| 357. |
Position of equilibrium reaction is influenced by changes in |
| A. | pressure |
| B. | concentration |
| C. | all of them |
| D. | temperature |
| Answer» D. temperature | |
| 358. |
One of the best catalyst which increases rate of reaction by million times is |
| A. | carbonic anhydrase |
| B. | carbolic anhydrase |
| C. | none |
| D. | both a and b |
| Answer» B. carbolic anhydrase | |
| 359. |
20% of iron and steel is destroyed annually by the oxidation reaction in process of |
| A. | molting |
| B. | rusting |
| C. | All of Above |
| D. | global warming |
| Answer» C. All of Above | |
| 360. |
Volume of a fixed mass of liquid is a physical property of |
| A. | Thermocouple thermometer |
| B. | Mercury-in-glass thermometer |
| C. | Constant-volume gas thermometer |
| D. | Resistance thermometer |
| Answer» C. Constant-volume gas thermometer | |
| 361. |
Exchange of nutrients and waste is performed through |
| A. | cell surface membranes |
| B. | Cell wall |
| C. | None of above |
| D. | Both A and B |
| Answer» E. | |
| 362. |
The metal core in power cable is normally made up of |
| A. | aluminum |
| B. | steel |
| C. | None of Above |
| D. | Both A and B |
| Answer» E. | |
| 363. |
Transition elements are |
| A. | zinc |
| B. | cobalt |
| C. | all of them |
| D. | scandium |
| Answer» C. all of them | |
| 364. |
The distinctive characteristic of an artery wall is its |
| A. | elasticity |
| B. | strength |
| C. | None of above |
| D. | Both A and B |
| Answer» E. | |
| 365. |
Metals conduct electricity when they are |
| A. | molten |
| B. | solid |
| C. | none |
| D. | both a and b |
| Answer» E. | |
| 366. |
In electron diffraction, the rings behave as |
| A. | waves |
| B. | particles |
| C. | rays |
| D. | both A and B |
| Answer» B. particles | |
| 367. |
In last stage of production of ammonia is condensed and collected in state of |
| A. | liquid |
| B. | solid |
| C. | vapor |
| D. | gas |
| Answer» B. solid | |
| 368. |
The ability to attract the bond pair of electron towards itself of a covalently bond atom is called as |
| A. | molarities |
| B. | polarity |
| C. | All of Above |
| D. | electro negativity |
| Answer» E. | |
| 369. |
The two points used for centigrade scale or Celsius scale are |
| A. | Condensing point and boiling point |
| B. | Melting point and boiling point |
| C. | Condensation point and freezing point |
| D. | Ice point and steam point |
| Answer» E. | |
| 370. |
trim ethylamine is example of |
| A. | secondary amines |
| B. | primary amines |
| C. | all of them |
| D. | tertiary amines |
| Answer» E. | |
| 371. |
The symbol for refractive index is equal to |
| A. | r |
| B. | i |
| C. | rn |
| D. | n |
| Answer» E. | |
| 372. |
The inner coat is referred to as |
| A. | tunica externa |
| B. | tunica intima |
| C. | None of above |
| D. | tunica media |
| Answer» C. None of above | |
| 373. |
The valency of magnesium is |
| A. | +2 |
| B. | +1 |
| C. | -2 |
| D. | -1 |
| Answer» B. +1 | |
| 374. |
Transport system with pumps is found in |
| A. | paramecium |
| B. | insects |
| C. | sea anemones |
| D. | jellyfish |
| Answer» C. sea anemones | |
| 375. |
Which of these oxides have both ionic and covalent nature of bonding? |
| A. | SiO2 |
| B. | MgO |
| C. | Al2O3 |
| D. | Na2O |
| Answer» D. Na2O | |
| 376. |
Electric power is related to |
| A. | potential difference |
| B. | current in component |
| C. | none of above |
| D. | both A and B |
| Answer» E. | |
| 377. |
The density of 50 g cm-1, pressure is 2500 Pascals. The height of the liquid is (take the gravitational pull of earth) |
| A. | 5 g cm-1 |
| B. | 50 g cm-1 |
| C. | 0.2 g cm-1 |
| D. | 100 g cm-1 |
| Answer» B. 50 g cm-1 | |
| 378. |
The three most common states of matter are |
| A. | Solid, gel and liquid |
| B. | Solid, liquid and gas |
| C. | Solid, gel and gas |
| D. | Gel, liquid and gas |
| Answer» C. Solid, gel and gas | |
| 379. |
In 1748 first time the word used in connection with electricity was |
| A. | charge |
| B. | battery |
| C. | all of them |
| D. | electrode |
| Answer» C. all of them | |
| 380. |
The electronegativity of Iodine (I) is |
| A. | 3 |
| B. | 3.8 |
| C. | 2.5 |
| D. | 2.8 |
| Answer» D. 2.8 | |
| 381. |
The molecular structure of SF6 is |
| A. | tetrahedral |
| B. | linear |
| C. | octahedral |
| D. | hexagonal |
| Answer» D. hexagonal | |
| 382. |
The value of R gas constant is 8.31JK-1mol-1 |
| A. | 8.31JK-1mol-1 |
| B. | 8.31JK-1 |
| C. | 8.37JK-1mol-1 |
| D. | 8.30JK-1mol-1 |
| Answer» B. 8.31JK-1 | |
| 383. |
The color of Iodine (I2) is |
| A. | black (s) |
| B. | grey |
| C. | All of Above |
| D. | purple (vapors) |
| Answer» D. purple (vapors) | |
| 384. |
Word 'adsorb' is |
| A. | absorb |
| B. | bonding to the surface |
| C. | same |
| D. | move in to substance |
| Answer» C. same | |
| 385. |
According to Le Chatelier's principle the energy of surroundings can be increased by increasing |
| A. | density |
| B. | volume |
| C. | temperature |
| D. | pressure |
| Answer» D. pressure | |
| 386. |
Melting point of phenol is |
| A. | 43°C |
| B. | 55°C |
| C. | 15°C |
| D. | 25°C |
| Answer» B. 55°C | |
| 387. |
The SI Unit for time is |
| A. | Hours |
| B. | Minutes |
| C. | Days |
| D. | Seconds |
| Answer» E. | |
| 388. |
Electrolysis is used for |
| A. | electrorefinning |
| B. | electroplating |
| C. | all of these |
| D. | extraction of metals |
| Answer» D. extraction of metals | |
| 389. |
At threshold voltage, the resistance of diode |
| A. | increases |
| B. | decreases |
| C. | varies depending on the direction of voltage |
| D. | remains constant |
| Answer» C. varies depending on the direction of voltage | |
| 390. |
The capacity or ability to do work is termed as |
| A. | Work |
| B. | Power |
| C. | Efficiency |
| D. | Energy |
| Answer» E. | |
| 391. |
in Al2Cl6 molecule, the ion pair of electrons are provided by |
| A. | Chlorine |
| B. | Aluminum |
| C. | All of Above |
| D. | Aluminium Chloride |
| Answer» B. Aluminum | |
| 392. |
the oxidation number of S in SCl2 is |
| A. | +3 |
| B. | +2 |
| C. | +5 |
| D. | +4 |
| Answer» C. +5 | |
| 393. |
In CO2 molecule, the number of electrons in valence shell around the Carbon atom are |
| A. | 4 |
| B. | 2 |
| C. | 8 |
| D. | 6 |
| Answer» D. 6 | |
| 394. |
Layers of rock beneath the surface of earth is present |
| A. | calcium |
| B. | water |
| C. | gold |
| D. | crude oil |
| Answer» E. | |
| 395. |
The atoms which act as a backbone of organic molecules are atoms of |
| A. | hydrogen |
| B. | carbon |
| C. | all of them |
| D. | oxygen |
| Answer» C. all of them | |
| 396. |
The technique which we use to measure enthalpy change of reactions is known as |
| A. | calorimetry |
| B. | spectrometry |
| C. | none |
| D. | both a and b |
| Answer» B. spectrometry | |
| 397. |
The symbol of gold is |
| A. | Gu |
| B. | Go |
| C. | Ag |
| D. | Au |
| Answer» E. | |
| 398. |
When the matter is being changed from liquid to gas, the temperature |
| A. | decreases |
| B. | increases |
| C. | may increase or decrease |
| D. | remains constant |
| Answer» E. | |
| 399. |
Pure aluminum is |
| A. | ductile |
| B. | soft |
| C. | All of Above |
| D. | high electrical and thermal conductivity |
| Answer» D. high electrical and thermal conductivity | |
| 400. |
The ups and downs in the longitudinal waves are termed as |
| A. | crests and rarefractions |
| B. | compression and rarefaction |
| C. | crests and troughs |
| D. | compressions and troughs |
| Answer» C. crests and troughs | |