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.
| 251. |
The body of car is repaired with help of a filler which is hardened by addition of |
| A. | benzyl peroxide |
| B. | hydrogen peroxide |
| C. | none |
| D. | aluminum peroxide |
| Answer» B. hydrogen peroxide | |
| 252. |
The boiling point of alcohol is |
| A. | 89 °C |
| B. | 79 °C |
| C. | 109 °C |
| D. | 99 °C |
| Answer» C. 109 °C | |
| 253. |
Elements with giant molecular structures and strong covalent bonds includes |
| A. | silicon |
| B. | diamond |
| C. | all of them |
| D. | geranium |
| Answer» D. geranium | |
| 254. |
The nature of bonding in Halogens is |
| A. | metallic bonds |
| B. | Ionic bonds |
| C. | diatic bonds |
| D. | covalent bonds |
| Answer» E. | |
| 255. |
Visible light has wavelength of |
| A. | 3x108m |
| B. | 5x10-7m |
| C. | 4x104m |
| D. | 6x103m |
| Answer» C. 4x104m | |
| 256. |
Zero acceleration or deceleration means that |
| A. | an object is moving with constant velocity |
| B. | an object is stationary |
| C. | the object is in a state of equilibrium |
| D. | an object may be moving with constant velocity or maybe is stationary |
| Answer» E. | |
| 257. |
105° in radians is equal to |
| A. | 3 rad |
| B. | 2 rad |
| C. | 4.5 rad |
| D. | 1.83 rad |
| Answer» E. | |
| 258. |
The enzymes are denatured due to huge changes in |
| A. | temperature |
| B. | pH |
| C. | pressure |
| D. | both a and b |
| Answer» E. | |
| 259. |
Which of these do not react with Oxygen? |
| A. | Ar |
| B. | Mg (s) |
| C. | S(s) |
| D. | P(s) |
| Answer» B. Mg (s) | |
| 260. |
A type of enthalpy cycle which is used to calculate lattice energy is |
| A. | Born-Haber cycle |
| B. | Hess's Law |
| C. | none |
| D. | both a and b |
| Answer» B. Hess's Law | |
| 261. |
We can say that one watt is defined as |
| A. | rate of time of one second per joule |
| B. | rate of work done or energy conversion of one joule per second |
| C. | rate of work done or energy conversion of one joule per meter |
| D. | rate of distance of one meter per joule |
| Answer» C. rate of work done or energy conversion of one joule per meter | |
| 262. |
The thermal energy absorbed without any change in temperature in boiling is termed as |
| A. | Latent heat of Fission |
| B. | Latent heat of Fusion |
| C. | Heat Capacity of Vaporization |
| D. | Latent Heat of Vaporization |
| Answer» E. | |
| 263. |
The thickness of material which decreases the intensity of x-ray material to half of original value is |
| A. | half thickness |
| B. | quarter thickness |
| C. | 2 times of thickness |
| D. | half life |
| Answer» B. quarter thickness | |
| 264. |
The instrument which is used to find relative atomic mass of each isotope in an element is called |
| A. | atomic spectrometer |
| B. | mass spectrometer |
| C. | none |
| D. | both a and b |
| Answer» C. none | |
| 265. |
The formula for efficiency is |
| A. | (energy input / energy output) x 100 |
| B. | (energy input / energy output) x 100 |
| C. | (useful energy output / total energy input) x 100 |
| D. | (useful energy input / energy output) x 100 |
| Answer» D. (useful energy input / energy output) x 100 | |
| 266. |
Upon dissolving ionic substances or melting them, |
| A. | the crystal lattice gets destroyed |
| B. | they become good conductor of electricity |
| C. | None of Above |
| D. | Both A and B |
| Answer» E. | |
| 267. |
The difference in the speed of light in air and in denser medium is termed as |
| A. | refractive index |
| B. | reflective index |
| C. | density index |
| D. | transactional index |
| Answer» B. reflective index | |
| 268. |
A Glomerulus |
| A. | is surrounded by Bowman's capsule |
| B. | is surrounded by tough outer capsule |
| C. | forms a cup of nephrons |
| D. | surrounds the Bowman's capsule |
| Answer» B. is surrounded by tough outer capsule | |
| 269. |
A copper wire resists 3.8 Ω at ice point and 13.8 Ω at steam point, and the resistance of wire is 5 Ω the room temperature would be |
| A. | 7 °C |
| B. | 2.5 °C |
| C. | 12 °C |
| D. | 7.5 °C |
| Answer» D. 7.5 °C | |
| 270. |
Weak acids are weak electrolytes because |
| A. | they contain only a few ions |
| B. | the number of valence electrons are lower |
| C. | None of Above |
| D. | Both A and B |
| Answer» E. | |
| 271. |
The types of waves is/are |
| A. | transverse and latitudinal |
| B. | latitudinal and longitudinal |
| C. | transverse and longitudinal |
| D. | transverse only |
| Answer» D. transverse only | |
| 272. |
The electronegativity of Bromine (B) is |
| A. | 3 |
| B. | 3.8 |
| C. | 2.5 |
| D. | 2.8 |
| Answer» E. | |
| 273. |
A student heats up a liquid from 20 °C to 30 °C with the thermal energy of 12000 J. If the mass of the liquid is 12 kg the specific heat capacity would be |
| A. | 50 J kg-1 °C-1 |
| B. | 25 J kg-1 °C-1 |
| C. | 100 J kg-1 °C-1 |
| D. | 75 J kg-1 °C-1 |
| Answer» D. 75 J kg-1 °C-1 | |
| 274. |
In CuO, the valency of Copper is |
| A. | +2 |
| B. | +1 |
| C. | −2 |
| D. | −1 |
| Answer» B. +1 | |
| 275. |
Which of the Period 3 metals have the highest electronegativity? |
| A. | Cl |
| B. | Si |
| C. | S |
| D. | P |
| Answer» B. Si | |
| 276. |
In solid the particles |
| A. | vibrate about fixed position |
| B. | move randomly |
| C. | move about fixed path |
| D. | vibrate and move randomly |
| Answer» B. move randomly | |
| 277. |
The speed of sound in air is |
| A. | 300 ms-1 |
| B. | 280 ms-1 |
| C. | 380 ms-1 |
| D. | 350 ms-1 |
| Answer» D. 350 ms-1 | |
| 278. |
The pressure of a liquid is 1000 Pascals, the height of the liquid is 20 cm, the density of the liquid is (keeping in mind 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 | |
| 279. |
Metal oxides or metal hydroxides form |
| A. | base |
| B. | acids |
| C. | None of Above |
| D. | alkali |
| Answer» B. acids | |
| 280. |
If we have a positive and a negative charge then force between them is |
| A. | negative |
| B. | positive |
| C. | infinite |
| D. | zero |
| Answer» B. positive | |
| 281. |
Reduction is gain of |
| A. | protons |
| B. | electrons |
| C. | All of Above |
| D. | neutrons |
| Answer» C. All of Above | |
| 282. |
Molecules act as building block of life including |
| A. | H2O |
| B. | CH4 |
| C. | All of above |
| D. | NH3 |
| Answer» D. NH3 | |
| 283. |
In transition elements atoms after filling 4s sub-shell, the rest of electrons reside in |
| A. | 2d sub shell |
| B. | 3d sub shell |
| C. | none |
| D. | both a and b |
| Answer» C. none | |
| 284. |
The pair of forces that cause the steering wheel of a car to rotate is called |
| A. | friction |
| B. | couple |
| C. | weight |
| D. | normal force |
| Answer» C. weight | |
| 285. |
The rate of evaporation decreases as |
| A. | the humidity of the surrounding air increases |
| B. | the temperature increases |
| C. | the atmospheric pressure decreases |
| D. | the movement of air above the surface of the liquid increases |
| Answer» B. the temperature increases | |
| 286. |
A voltmeter arranged across the power supply measures |
| A. | e.m.f |
| B. | potential difference |
| C. | none of above |
| D. | current |
| Answer» B. potential difference | |
| 287. |
Which if these do not react vigorously with Oxygen? |
| A. | Mg (s) |
| B. | NA (s) |
| C. | S(s) |
| D. | Al (s) |
| Answer» E. | |
| 288. |
Terbium Tb atomic mass of 159 belongs to block |
| A. | p |
| B. | s |
| C. | d |
| D. | f |
| Answer» E. | |
| 289. |
Ion which is more effective nucleophile than water is |
| A. | carbocation |
| B. | negatively charged hydroxide |
| C. | hydroxyl ion |
| D. | anion |
| Answer» C. hydroxyl ion | |
| 290. |
Nitrogen gas prevent the chance of explosion in case of crude oil contact with air because it is |
| A. | non-reactive |
| B. | reactive |
| C. | covalently bonded |
| D. | soluble |
| Answer» B. reactive | |
| 291. |
Ksp is called as |
| A. | solubility reactant |
| B. | solubility product |
| C. | none |
| D. | both a and b |
| Answer» C. none | |
| 292. |
The reaction in which monomers containing carbon-to-carbon double bond react together to form long chain of polymers is called |
| A. | substitution polymerization |
| B. | addition polymerization |
| C. | all of them |
| D. | condensation polymerization |
| Answer» C. all of them | |
| 293. |
The speed of ultrasound depends upon |
| A. | amplitude |
| B. | medium |
| C. | wavelength |
| D. | material |
| Answer» E. | |
| 294. |
The inner lining of the Bowman's capsule is made up of |
| A. | basement membrane |
| B. | endothelium of the Bowman's capsule |
| C. | Podocytes |
| D. | epithelial cells |
| Answer» E. | |
| 295. |
If fast moving electrons rapidly decelerate, then rays produced are |
| A. | beta rays |
| B. | alpha rays |
| C. | x-rays |
| D. | gamma rays |
| Answer» D. gamma rays | |
| 296. |
The enzymes in bacteria found in hot springs have optimum temperature of |
| A. | 70 °C |
| B. | 95 °C |
| C. | 55 °C |
| D. | 25 °C |
| Answer» B. 95 °C | |
| 297. |
A reductant |
| A. | donates electrons |
| B. | removes oxygen |
| C. | None of Above |
| D. | Both A and B |
| Answer» E. | |
| 298. |
The bonding pairs of electrons in each carbon atom |
| A. | attract |
| B. | repel |
| C. | centrifuge |
| D. | remain intact |
| Answer» C. centrifuge | |
| 299. |
The e.m.f can be induced in a circuit by |
| A. | changing area of circuit |
| B. | changing magnetic flux density |
| C. | all of above |
| D. | changing the angle |
| Answer» D. changing the angle | |
| 300. |
Which one of the following is a form of energy? |
| A. | Acceleration |
| B. | Force |
| C. | Speed |
| D. | Light |
| Answer» E. | |