MCQOPTIONS
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MCQOPTIONS
This section includes 1315 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 351. |
Which formula represents a polar molecule? |
| A. | C - O |
| B. | C - N |
| C. | H - N |
| D. | All of the above |
| Answer» E. | |
| 352. |
Which gas is a source of natural groundwater pollution? |
| A. | Helium |
| B. | Krypton |
| C. | Radon |
| D. | Argon |
| Answer» D. Argon | |
| 353. |
Which gas contributes most to the Greenhouse effect? |
| A. | Water vapour |
| B. | Ozone |
| C. | Oxygen |
| D. | Nitrogen |
| Answer» B. Ozone | |
| 354. |
Which formula represents a nonpolar molecule? |
| A. | H2O |
| B. | CF4 |
| C. | HCl |
| D. | H2S |
| Answer» C. HCl | |
| 355. |
Which formula represents a molecular compound? |
| A. | Ar |
| B. | NaI |
| C. | N2O4 |
| D. | All of the above |
| Answer» D. All of the above | |
| 356. |
Which equation represents a neutralization reaction? |
| A. | 2Al(OH)3(s) ---> Al2O3(s) + 3H2O(l) |
| B. | H2SO4(aq) + 2NaOH(aq) ---> Na2SO4(aq) + 2H2O(l) |
| C. | 2H2(g) + O2(g) ---> 2H2O(l) |
| D. | H2CO3(aq) ---> CO2(g) + H2O(l) |
| Answer» C. 2H2(g) + O2(g) ---> 2H2O(l) | |
| 357. |
Which element is not a part of a nitrogenous base? |
| A. | Hydrogen |
| B. | Phosphorous |
| C. | Carbon |
| D. | Nitrogen |
| Answer» C. Carbon | |
| 358. |
Which element is generally No Radioactive? |
| A. | Thorium |
| B. | Polonium |
| C. | Germanium |
| D. | Plutonium |
| Answer» D. Plutonium | |
| 359. |
Which equation is an example of a synthesis reaction? |
| A. | 2H2 + O2 → 2H2O |
| B. | Na + Cl → NaCl |
| C. | HA + BOH → H2O + BA |
| D. | NaCl + AgNO3 → NaNO3 + AgCl |
| Answer» C. HA + BOH → H2O + BA | |
| 360. |
Which element has similar properties to Beryllium? |
| A. | Manganese |
| B. | Calcium |
| C. | Both A & B |
| D. | Helium |
| Answer» C. Both A & B | |
| 361. |
Which element has the lowest ionization energy? |
| A. | He |
| B. | Ne |
| C. | Fr |
| D. | Rb |
| Answer» D. Rb | |
| 362. |
Which electron dot formula represents a polar molecule?_x005F_x000D_ |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» C. C | |
| 363. |
Which element is a member of the halogen family? |
| A. | Chlorine |
| B. | Bromine |
| C. | Iodine |
| D. | All of the above |
| Answer» E. | |
| 364. |
Which drug is used for Pain Relief? |
| A. | Risedronate |
| B. | Tramadol |
| C. | Folic Acid |
| D. | Bupropion |
| Answer» C. Folic Acid | |
| 365. |
Which compound matches the IR Spectrum?_x005F_x000D_ |
| A. | 3 – Hexanol |
| B. | Trans – 4 – Octene |
| C. | 1, 5 – Hexadiene |
| D. | None of the above |
| Answer» D. None of the above | |
| 366. |
Which compound is used in Anti-malarial drug? |
| A. | Aspirin |
| B. | Neosporin |
| C. | Chloroquin |
| D. | Antacid |
| Answer» D. Antacid | |
| 367. |
Which drug is used as a Nonsteroidal anti-inflammatory drug? |
| A. | Risedronate |
| B. | Diazepam |
| C. | Folic Acid |
| D. | Ibuprofen |
| Answer» E. | |
| 368. |
Which compound matches the IR Spectrum?_x005F_x000D_ Â _x005F_x000D_ |
| A. | 1, 5 – hexadiene |
| B. | 3 – Hexanol |
| C. | Trans – 4 – octene |
| D. | None of the above |
| Answer» B. 3 – Hexanol | |
| 369. |
Which compound is formed when a Magnesium ribbon is burnt in air? |
| A. | Magnesium Nitrate |
| B. | Magnesium Carbonate |
| C. | Magnesium Oxide |
| D. | Magnesium Nitride |
| Answer» D. Magnesium Nitride | |
| 370. |
Which compound is a saturated hydrocarbon? |
| A. | Alkene |
| B. | Alkane |
| C. | Alkine |
| D. | All of the above |
| Answer» C. Alkine | |
| 371. |
Which compound is an electrolyte? |
| A. | HCl |
| B. | NaCl |
| C. | HBr |
| D. | All of the above |
| Answer» E. | |
| 372. |
Which compound forms a colored aqueous solution? |
| A. | CrCl3 |
| B. | KBr |
| C. | CaCl2 |
| D. | NaOH |
| Answer» B. KBr | |
| 373. |
Which compound contains ionic bonds? |
| A. | CaO |
| B. | CO2 |
| C. | NO2 |
| D. | NO |
| Answer» B. CO2 | |
| 374. |
Which combination will produce a precipitate? |
| A. | NaOH (aq) and HCl (aq) |
| B. | KOH (aq) and Mg(NO3)2 (aq) |
| C. | NaC2H3O2(aq) and HCl (aq) |
| D. | AgNO3(aq) and Ca(C2H2O3) (aq) |
| Answer» C. NaC2H3O2(aq) and HCl (aq) | |
| 375. |
Which combination of atoms can form a polar covalent bond? |
| A. | H and Br |
| B. | H and H |
| C. | Na and Br |
| D. | N and N |
| Answer» B. H and H | |
| 376. |
Which chemical bond most likely stores the most energy? |
| A. | Single bond |
| B. | Double bond |
| C. | Both A & B |
| D. | None of the above |
| Answer» C. Both A & B | |
| 377. |
Which choice best describes the polarity of BrF5? |
| A. | nonpolar bonds / nonpolar molecule |
| B. | nonpolar bonds / polar molecule |
| C. | polar bonds / polar molecule |
| D. | polar bonds / nonpolar molecule |
| Answer» D. polar bonds / nonpolar molecule | |
| 378. |
Which chemical is present in the cells of cork of tree which makes them impervious to gases and water |
| A. | Cellulose |
| B. | Suberin |
| C. | Pectin |
| D. | Lignin |
| Answer» C. Pectin | |
| 379. |
Which characteristic is a property of molecular substances? |
| A. | good heat conductivity |
| B. | high melting point |
| C. | good heat conductivity |
| D. | low melting point |
| Answer» E. | |
| 380. |
Which category of Hydrogen releases water vapour and a by product when burnt?_x005F_x000D_ |
| A. | Green Hydrogen |
| B. | Blue Hydrogen |
| C. | Red Hydrogen |
| D. | Black Hydrogen |
| Answer» B. Blue Hydrogen | |
| 381. |
Which bond has the greatest ionic character? |
| A. | H-F |
| B. | H-Cl |
| C. | H-N |
| D. | H-O |
| Answer» B. H-Cl | |
| 382. |
Which best describes the nucleus of an atom? |
| A. | It is the densest part of the atom |
| B. | It has neutrons |
| C. | It has protons |
| D. | All of the above |
| Answer» E. | |
| 383. |
Which best describes an element? |
| A. | An element is composed of identical atoms |
| B. | A pure substance |
| C. | a material that has consistent chemical properties |
| D. | Both A & B |
| Answer» E. | |
| 384. |
Which base is present in soap? |
| A. | Sodium hydroxide |
| B. | Silicon dioxide |
| C. | Calcium hydroxide |
| D. | Ammonium hydroxide |
| Answer» B. Silicon dioxide | |
| 385. |
Which base is present in milk of magnesia? |
| A. | Magnesium hydroxide |
| B. | Ammonium hydroxide |
| C. | Sodium hydroxide |
| D. | Calcium hydroxide |
| Answer» B. Ammonium hydroxide | |
| 386. |
Which base is present in lime water? |
| A. | Sodium hydroxide |
| B. | Magnesium hydroxide |
| C. | Calcium hydroxide |
| D. | Ammonium hydroxide |
| Answer» D. Ammonium hydroxide | |
| 387. |
Which atom has the largest radius? |
| A. | Neon |
| B. | Francium |
| C. | Helium |
| D. | Cesium |
| Answer» C. Helium | |
| 388. |
Which are two chemicals used to purify water? |
| A. | Chlorine & Fluorine |
| B. | Fluorine & Iodine |
| C. | Chlorine & Hydrogen peroxide |
| D. | Fluorine & Iodine |
| Answer» D. Fluorine & Iodine | |
| 389. |
Which amongst the following is not a Cation? |
| A. | Aluminium ion |
| B. | Copper ion |
| C. | Sulphate ion |
| D. | Zinc ion |
| Answer» D. Zinc ion | |
| 390. |
Which among the following will be a negative ion? |
| A. | If it has more electrons than protons |
| B. | If it has more electrons than neutrons |
| C. | If it has more protons than electrons |
| D. | If it has more protons than neutrons |
| Answer» B. If it has more electrons than neutrons | |
| 391. |
Which among the following statements are TRUE regarding synthetic fibre?_x005F_x000D_ Â _x005F_x000D_ I. They melt after catching fire._x005F_x000D_ II. They are more durable._x005F_x000D_ III. They are prepared by a number of processes using petrochemicals._x005F_x000D_ |
| A. | Only I and II |
| B. | Only I and III |
| C. | Only II and III |
| D. | All I, II and III |
| Answer» E. | |
| 392. |
Which among the following metal is used for galvanization? |
| A. | Zinc |
| B. | Copper |
| C. | Iron |
| D. | Silver |
| Answer» B. Copper | |
| 393. |
Which among the following noble gas has highest molar mass?_x005F_x000D_ |
| A. | Kr_x005F_x000D_ |
| B. | Ne_x005F_x000D_ |
| C. | Ar_x005F_x000D_ |
| D. | Xe |
| Answer» E. | |
| 394. |
Which among the following minerals is also known as Horn Silver? |
| A. | Silver Chroride |
| B. | Zinc Phosphate |
| C. | Silver Iodide |
| D. | Silver Sulphide |
| Answer» B. Zinc Phosphate | |
| 395. |
Which among the following is white phosphorus? |
| A. | P1 |
| B. | P6 |
| C. | P4 |
| D. | P5 |
| Answer» D. P5 | |
| 396. |
Which among the following is used to generate light, to weld metals? |
| A. | Ethylene |
| B. | Acetylene |
| C. | Glycol |
| D. | Oxalic acid |
| Answer» C. Glycol | |
| 397. |
Which among the following is the most electronegative element? |
| A. | Flourine |
| B. | Bromine |
| C. | Iodine |
| D. | Oxygen |
| Answer» B. Bromine | |
| 398. |
Which among the following is used in making liquors, medicines and as a fuel in aircrafts? |
| A. | Propyl alcohol |
| B. | Dimethyl alcohol |
| C. | Ethyl alcohol |
| D. | Methyl alcohol |
| Answer» D. Methyl alcohol | |
| 399. |
Which among the following is popularly called Laughing gas? |
| A. | Nitric oxide |
| B. | Nitrogen dioxide |
| C. | Nitrous oxide |
| D. | Nitrogen peroxide |
| Answer» D. Nitrogen peroxide | |
| 400. |
Which among the following is not an example of emulsion? |
| A. | Chocolate-Milk |
| B. | Butter |
| C. | Whipped Cream |
| D. | Curd |
| Answer» E. | |