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.
| 401. |
Which among the following is not a characteristic of oxidation reaction? |
| A. | It involves addition of hydrogen |
| B. | It involves addition of oxygen |
| C. | It involves loss of electrons |
| D. | It involves addition of electronegative element |
| Answer» B. It involves addition of oxygen | |
| 402. |
Which among the following is false about viscosity? |
| A. | Viscosity of gases is less than that of liquids |
| B. | Viscosity of gases increases with rise in temperature |
| C. | Viscosity of liquid decreases with rise in temperature |
| D. | Viscosity of liquid decreases with increase in pressure |
| Answer» E. | |
| 403. |
Which among the following is false about natural rubber? |
| A. | It is an elastomer |
| B. | It is a monomer of cisÂisoprene |
| C. | Natural rubber is a polymer of chloroprene |
| D. | It is heated with sulphur compounds to improve its properties |
| Answer» C. Natural rubber is a polymer of chloroprene | |
| 404. |
Which among the following is false about alpha particles? |
| A. | They have high ionizing power |
| B. | They have high penetrating power |
| C. | They have high kinetic energy |
| D. | They are positively charged helium nuclei |
| Answer» C. They have high kinetic energy | |
| 405. |
Which among the following is false about acids? |
| A. | They give H+ ions in aqueous solution |
| B. | Most acids contain hydrogen |
| C. | They turn blue litmus red |
| D. | They are bad conductor of electricity in aqueous solution |
| Answer» E. | |
| 406. |
Which among the following is an example of mixture? |
| A. | Milk |
| B. | Gasoline |
| C. | Liquefied petroleum gas |
| D. | All options are correct |
| Answer» E. | |
| 407. |
Which among the following is an endothermic reaction? |
| A. | Respiration |
| B. | Combustion |
| C. | Sweating |
| D. | Burning of natural gas |
| Answer» D. Burning of natural gas | |
| 408. |
Which among the following has the maximum density? |
| A. | Water |
| B. | Ice |
| C. | Ethylene |
| D. | Acetone |
| Answer» B. Ice | |
| 409. |
Which among the following has lowest electron affinity? |
| A. | Fluorine |
| B. | Chlorine |
| C. | Bromine |
| D. | Argon |
| Answer» E. | |
| 410. |
Which among the following has highest electron affinity? |
| A. | Chlorine |
| B. | Fluorine |
| C. | Helium |
| D. | Xenon |
| Answer» B. Fluorine | |
| 411. |
Which among the following happens in an oxidation reaction? |
| A. | Electrons are gained |
| B. | Electrons are lost |
| C. | Protons are gained |
| D. | Protons are lost |
| Answer» C. Protons are gained | |
| 412. |
Which among the following difference between aerobic and anaerobic respiration is INCORRECT? |
| A. | Aerobic respiration takes place in presence of oxygen – Anaerobic respiration takes place in the absence of oxygen_x005F_x000D_ |
| B. | In Aerobic respiration pyruvate is broken down into ethanol and carbon dioxide – In Anaerobic respiration pyruvate is broken down into carbon dioxide and water |
| C. | In Aerobic respiration more energy is released – In Anaerobic respiration less energy is released_x005F_x000D_ |
| D. | Aerobic respiration takes place in mitochondria– Anaerobic respiration takes place in yeast_x005F_x000D_ |
| Answer» C. In Aerobic respiration more energy is released – In Anaerobic respiration less energy is released_x005F_x000D_ | |
| 413. |
Which among the following compounds has the strongest hydrogen bond? |
| A. | HI |
| B. | HCl |
| C. | HF |
| D. | HBr |
| Answer» D. HBr | |
| 414. |
Which among the following cannot be included among greenhouse gases? |
| A. | Nitrous Oxide |
| B. | Carbon Dioxide |
| C. | Methane |
| D. | Phosphine |
| Answer» E. | |
| 415. |
Which acid is produced when milk gets sour? |
| A. | Lactic acid |
| B. | Acetic acid |
| C. | Tartaric acid |
| D. | Butyric acid |
| Answer» B. Acetic acid | |
| 416. |
Which acid is present in tomato? |
| A. | Sulphuric acid |
| B. | HCl |
| C. | Both A & B |
| D. | Citric acid |
| Answer» E. | |
| 417. |
When two liquids do not mix with each other to form a solution, what is it called? |
| A. | Solvent |
| B. | Solute |
| C. | Immiscible |
| D. | Decantation |
| Answer» D. Decantation | |
| 418. |
When water freezes its density |
| A. | decreases |
| B. | remains constant |
| C. | increases |
| D. | become zero |
| Answer» B. remains constant | |
| 419. |
When the nucleus of Uranium is bombarded with neutrons, it breaks up into two nuclei of nearly equal mass. this process is called |
| A. | nuclear fission |
| B. | nuclear fusion |
| C. | physical change |
| D. | artificial radioactivity |
| Answer» B. nuclear fusion | |
| 420. |
When milk becomes sour, ___ is produced. |
| A. | Lactose |
| B. | Lactic acid |
| C. | Salicylic acid |
| D. | Linoleic acid |
| Answer» C. Salicylic acid | |
| 421. |
When large quantities of ___ are consumed, it tends to slow metabolic processes and to depress the central nervous system. |
| A. | Butanol |
| B. | Propanol |
| C. | Methanol |
| D. | Ethanol |
| Answer» E. | |
| 422. |
When iron rusts, its weight ..... |
| A. | decreases |
| B. | increases |
| C. | remains the same |
| D. | first increases and then decreases |
| Answer» C. remains the same | |
| 423. |
When iron is exposed to moist air, a reddish brown coating of hydrated Iron (III) Oxide (Fe2O3) is deposited on its surface. This reddish brown coating is called |
| A. | alloy |
| B. | dust |
| C. | rust |
| D. | iron |
| Answer» D. iron | |
| 424. |
When ice cubes are made, the entropy of water |
| A. | does not change |
| B. | decreases |
| C. | increases |
| D. | may either increase or decrease depending on the process used |
| Answer» C. increases | |
| 425. |
When Ionic bonds are formed metallic atoms tend to |
| A. | share electrons |
| B. | gain electrons |
| C. | lose electrons |
| D. | None of above |
| Answer» D. None of above | |
| 426. |
When Granite rocks get metamorphosed, they form |
| A. | Quartzite |
| B. | Gneiss |
| C. | Marble |
| D. | Slate |
| Answer» C. Marble | |
| 427. |
When electricity is passed through an aqueous solution of Sodium Chloride (brine), it decomposes to form._x005F_x000D_ |
| A. | NaOH + H2 + Cl2 |
| B. | NaOH + H2 + O2 |
| C. | NaOH + HCl + H2 |
| D. | NaOH + H2 + N2 |
| Answer» B. NaOH + H2 + O2 | |
| 428. |
When copper oxide is heated with hydrogen. copper metal and water are formed. What happens to the hydrogen in this reaction?_x005F_x000D_ |
| A. | both oxidation and reduction |
| B. | Reduction |
| C. | Oxidation |
| D. | Decomposition |
| Answer» D. Decomposition | |
| 429. |
When combining with nonmetallic atoms, metallic atoms generally will |
| A. | Lose electrons and forms cations |
| B. | Gain electrons and forms anions |
| C. | Lose electrons and forms anions |
| D. | Gain electrons and forms cations |
| Answer» B. Gain electrons and forms anions | |
| 430. |
When a chemical bond is broken energy is |
| A. | transferred |
| B. | released |
| C. | used |
| D. | None of the above |
| Answer» D. None of the above | |
| 431. |
What was the position of noble gases in the Mendeleev's periodic table?_x005F_x000D_ |
| A. | Noble gases, being very inert, were not necessarily put in the periodic table |
| B. | Noble gases were there in the seventh group |
| C. | Mendeleev divided all elements into 8 groups, so there was no place for noble gases |
| D. | Noble gases were not discovered by that time |
| Answer» E. | |
| 432. |
Whcih one is the compound in the following |
| A. | mercury |
| B. | ozone |
| C. | air |
| D. | ammonia |
| Answer» D. ammonia | |
| 433. |
What was the element used in traditional thermometers which is highly toxic in nature? |
| A. | Carbon |
| B. | Mercury |
| C. | Arsenic |
| D. | Cadmium |
| Answer» C. Arsenic | |
| 434. |
What unit is used to measure weighted average atomic mass? |
| A. | amu |
| B. | gram/mole |
| C. | Both A & B |
| D. | 1/mole |
| Answer» D. 1/mole | |
| 435. |
What types of atoms form covalent bonds? |
| A. | metal and metal |
| B. | metal and non metal |
| C. | non metal and non metal |
| D. | All of the above |
| Answer» D. All of the above | |
| 436. |
What type of Lipid is Estrogen? |
| A. | phospholipid |
| B. | steroid |
| C. | wax |
| D. | triglyceride |
| Answer» C. wax | |
| 437. |
What type of compound is Lecithin? |
| A. | Sterol |
| B. | Phospholipid |
| C. | Lipoprotein |
| D. | Glycolipid |
| Answer» C. Lipoprotein | |
| 438. |
What type of bond is joining the two hydrogen atoms? |
| A. | Hydrophobic |
| B. | Ionic |
| C. | Covalent |
| D. | Hydrophilic |
| Answer» D. Hydrophilic | |
| 439. |
What two elements are used to make bronze? |
| A. | Lead and copper |
| B. | copper and tin |
| C. | Tin and lead |
| D. | copper and iron |
| Answer» D. copper and iron | |
| 440. |
What state of matter is Jello? |
| A. | Liquid |
| B. | Solid |
| C. | Colloid |
| D. | Gas |
| Answer» D. Gas | |
| 441. |
What product is formed when electricity is passed through an aqueous solution of sodium chloride? |
| A. | Sodium and Chlorine |
| B. | Sodium oxide |
| C. | Sodium hydroxide |
| D. | Sodium and water |
| Answer» D. Sodium and water | |
| 442. |
What occurs when an atom loses an electron? |
| A. | The atom's radius decreases and the atom becomes a positive ion. |
| B. | The atom's radius increases and the atom becomes a negative ion. |
| C. | The atom's radius decreases and the atom becomes a negative ion. |
| D. | The atom's radius increases and the atom becomes a positive ion. |
| Answer» B. The atom's radius increases and the atom becomes a negative ion. | |
| 443. |
What is the number of atoms in 46 g of sodium-23 (N = Avogadro constant)? |
| A. | N/2 |
| B. | N |
| C. | 2N |
| D. | 23 N |
| Answer» D. 23 N | |
| 444. |
What name is given to the bond between water molecules? |
| A. | Polar |
| B. | Polar covalent |
| C. | Hydrogen |
| D. | None of the above |
| Answer» D. None of the above | |
| 445. |
What molecule is indicated by the letter D? |
| A. | ATP |
| B. | Water |
| C. | Glucose |
| D. | Oxygen |
| Answer» E. | |
| 446. |
What is the weight of one mole Carbon atoms? |
| A. | 12 gm |
| B. | 120 gm |
| C. | 1.2 gm |
| D. | 0.12 gm |
| Answer» B. 120 gm | |
| 447. |
What is used to prevent freezing of fuel in space crafts? |
| A. | Benzene |
| B. | Glycol |
| C. | Acetylene |
| D. | Ester |
| Answer» C. Acetylene | |
| 448. |
What is the value of triple point (solid, liquid and gas) of Water? |
| A. | 273.16° C |
| B. | -273.16 K |
| C. | 273.16 K |
| D. | 0° C |
| Answer» D. 0° C | |
| 449. |
What is the valency of magnesium? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 450. |
What is the systematic name of PbO? |
| A. | Plumbic oxide |
| B. | Lead oxide |
| C. | Lead(II) oxide |
| D. | All of the above |
| Answer» D. All of the above | |