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MCQOPTIONS
This section includes 64577 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 2251. |
The arrangement of CH |
| A. | tetrahedral |
| B. | linear |
| C. | trigonal |
| D. | hexagonal |
| Answer» B. linear | |
| 2252. |
The state of freezing involves |
| A. | increased force of attraction |
| B. | loss of kinetic energy |
| C. | All of Above |
| D. | liquid solidifies |
| Answer» D. liquid solidifies | |
| 2253. |
In Haber's process bonds between ammonia and iron surface weaken and break during |
| A. | chemisorptions |
| B. | adsorption |
| C. | desorption |
| D. | both a and b |
| Answer» D. both a and b | |
| 2254. |
Consider the reaction: Al |
| A. | 2 |
| B. | 1 |
| C. | 4 |
| D. | 3 |
| Answer» B. 1 | |
| 2255. |
The electrons which are not associated with a single type of atom are termed as |
| A. | delocalized |
| B. | spectators |
| C. | none |
| D. | lone pair |
| Answer» B. spectators | |
| 2256. |
The atom is held together by strong force present between electrons and nuclei of |
| A. | repulsion |
| B. | attraction |
| C. | heat |
| D. | energy |
| Answer» C. heat | |
| 2257. |
Resultant forces on an object are equal to zero so we say that the forces are |
| A. | equal |
| B. | balanced |
| C. | stable |
| D. | unbalanced |
| Answer» E. | |
| 2258. |
Due to change in their shape the enzymes no longer attach substrate leaving the enzyme as |
| A. | denatured |
| B. | active |
| C. | efficient |
| D. | destroyed |
| Answer» B. active | |
| 2259. |
By exposure of electrons beams on atoms and observing their behavior upon fall of beam can help to determine |
| A. | weight |
| B. | charge |
| C. | all |
| D. | length |
| Answer» C. all | |
| 2260. |
The primary amine in which nitrogen is attached to only one alkyl group is |
| A. | diethyl amine |
| B. | ethylamine |
| C. | amide |
| D. | monoamine |
| Answer» C. amide | |
| 2261. |
Every temperature measuring instrument makes use of a physical property of a substance in order to measure temperature objectively, which physical property is used by Resistance thermometer? |
| A. | Resistance of a piece of metal |
| B. | Electromotive force |
| C. | Pressure of a fixed mass of gas at constant volume |
| D. | Volume of a fixed mass of liquid |
| Answer» B. Electromotive force | |
| 2262. |
MgCO |
| A. | CO |
| B. | |
| C. | water |
| D. | all of these |
| E. | Both A and B |
| Answer» E. Both A and B | |
| 2263. |
If an unmarked thermometer, which contains alcohol in its bulb, has l |
| A. | 60 °C |
| B. | 50 °C |
| C. | 10 °C |
| D. | 75 °C |
| Answer» C. 10 °C | |
| 2264. |
Heat is transferred by means of three different processes, which one of the following does not belong to the list? |
| A. | Convection |
| B. | Conduction |
| C. | None of the above |
| D. | Radiation |
| Answer» D. Radiation | |
| 2265. |
Solution which is used to detect presence of aldehyde or ketone is |
| A. | BNPH |
| B. | 2,4-dinitrophenylhydrazine |
| C. | tollen's reagent |
| D. | both a and b |
| Answer» E. | |
| 2266. |
The reaction in which oxidation and reduction takes place at same time is called as |
| A. | oxidation reaction |
| B. | Redox-reaction |
| C. | All of Above |
| D. | reduction reaction |
| Answer» C. All of Above | |
| 2267. |
Greater polarisation of carbonate ion will result in weaken |
| A. | C-C bond |
| B. | C-H bond |
| C. | none |
| D. | both a and b |
| Answer» C. none | |
| 2268. |
All compounds consists of particular atoms in their molecules or group of atoms which is called as |
| A. | atom group |
| B. | prominent group |
| C. | function group |
| D. | functional group |
| Answer» E. | |
| 2269. |
Nitrogen is in |
| A. | Group IV |
| B. | Group II |
| C. | Group VI |
| D. | Group V |
| Answer» E. | |
| 2270. |
In ammonia, the tetrahedral shape gets distorted and becomes |
| A. | triangular pyramidal |
| B. | trigonal |
| C. | hexagonal |
| D. | linear |
| Answer» B. trigonal | |
| 2271. |
Reaction in which amino acids react together to form peptides and proteins is called |
| A. | substitution polymerization |
| B. | addition polymerization |
| C. | all of them |
| D. | condensation polymerization |
| Answer» E. | |
| 2272. |
At 430°C the sample of HBr will decompose to |
| A. | 0.1 |
| B. | 0.2 |
| C. | 0.11 |
| D. | 0.22 |
| Answer» B. 0.2 | |
| 2273. |
Lithium Fluoride's lattice energy compared to Magnesium oxide is |
| A. | greater |
| B. | lesser |
| C. | none |
| D. | same |
| Answer» C. none | |
| 2274. |
A cow of mass 250 kg, weighs |
| A. | 25 N |
| B. | 250 N |
| C. | 125 N |
| D. | 2500 N |
| Answer» E. | |
| 2275. |
Generally the alkanes are said to have been |
| A. | unreactive |
| B. | reactive |
| C. | stable |
| D. | highly reactive |
| Answer» B. reactive | |
| 2276. |
If we wave a rope, the medium would be |
| A. | the rope itself |
| B. | hand by which the rope is waved |
| C. | air |
| D. | the other side to which the rope is tied |
| Answer» B. hand by which the rope is waved | |
| 2277. |
In Physics, pressure is defined as |
| A. | P = A/F |
| B. | P = A x F |
| C. | P = F/d |
| D. | P = F/A |
| Answer» E. | |
| 2278. |
Methylated spirits contain an estimated percentage 90% |
| A. | methanol |
| B. | methyl |
| C. | all of them |
| D. | ethanol |
| Answer» E. | |
| 2279. |
Products which are manufactured by using phenol as their starting material includes |
| A. | TCP antiseptics |
| B. | compact discs |
| C. | all of them |
| D. | araldite adhesive |
| Answer» D. araldite adhesive | |
| 2280. |
Atmospheric pressure is measured by |
| A. | Mercury barometer |
| B. | Mercury manometer |
| C. | Mercury Thermometer |
| D. | Mercury galvanometer |
| Answer» B. Mercury manometer | |
| 2281. |
The color of Chlorine (Cl |
| A. | yellow |
| B. | green |
| C. | None of Above |
| D. | both of these |
| Answer» E. | |
| 2282. |
The simple relationship between equilibrium concentrations of reactants and products with stoichiometery is called as |
| A. | equilibrium relation |
| B. | equilibrium expression |
| C. | none |
| D. | dynamic equilibrium |
| Answer» C. none | |
| 2283. |
Sound waves include |
| A. | compressions and crests |
| B. | troughs and crests |
| C. | compressions and rarefactions |
| D. | troughs and rarefactions |
| Answer» D. troughs and rarefactions | |
| 2284. |
After dissolving one mole of solute in a solvent, an infinite dilute solution is formed in standard enthalpy change of |
| A. | solution |
| B. | solvent |
| C. | solution |
| D. | solute |
| Answer» D. solute | |
| 2285. |
Ring opening polymerization produces |
| A. | polyesters |
| B. | nylon 6 |
| C. | all of them |
| D. | polypeptide |
| Answer» C. all of them | |
| 2286. |
An alcohol-in-glass thermometer has l |
| A. | 40 °C |
| B. | 20 °C |
| C. | 80 °C |
| D. | 25 °C |
| Answer» E. | |
| 2287. |
Reaction of gaseous molecules at surface of solid catalyst is done in |
| A. | heterogeneous catalysis |
| B. | homogeneous catalysis |
| C. | none |
| D. | both a and b |
| Answer» B. homogeneous catalysis | |
| 2288. |
There are strong attractive forces between metal ions and delocalized electrons which gives |
| A. | hardness |
| B. | high tensile strength |
| C. | none |
| D. | both a and b |
| Answer» E. | |
| 2289. |
Why are liquids and gases termed as fluids? Because |
| A. | they have irregular shape |
| B. | they can flow |
| C. | they are compressible |
| D. | they have randomly moving particles |
| Answer» C. they are compressible | |
| 2290. |
The raw material required for production of sulfuric acid is |
| A. | air |
| B. | sulfur |
| C. | all of them |
| D. | water |
| Answer» D. water | |
| 2291. |
As the resistance of an electrical wire at ice point is 1.5 Ω and 101.5 Ω at steam point, and the resistance of wire is 9 Ω the room temperature would be |
| A. | 6 °C |
| B. | 2.5 °C |
| C. | 11 °C |
| D. | 7.5 °C |
| Answer» E. | |
| 2292. |
A sigma bond (σ-bond) is formed when |
| A. | when s-orbital overlaps with another s-orbital |
| B. | p-orbital overlaps with another p-orbital |
| C. | None of Above |
| D. | when a p-orbital overlaps with a modified p-orbital |
| Answer» D. when a p-orbital overlaps with a modified p-orbital | |
| 2293. |
According to Lowry and Bronsted theory of acid and bases, water can act as |
| A. | base |
| B. | acid |
| C. | none |
| D. | both a and b |
| Answer» E. | |
| 2294. |
The oxidation number of Na in NaCl is |
| A. | +2 |
| B. | +1 |
| C. | +4 |
| D. | +3 |
| Answer» C. +4 | |
| 2295. |
Half-cell which is used to refer different electrode is standard |
| A. | hydrogen electrode |
| B. | carbon electrode |
| C. | zinc electrode |
| D. | copper electrode |
| Answer» B. carbon electrode | |
| 2296. |
The heat that is transferred without any medium is termed as |
| A. | Convectional heat |
| B. | Conductional heat |
| C. | Conductional and convectional heat both |
| D. | Radiant heat |
| Answer» E. | |
| 2297. |
For two objects A and B, if mass of A is same as mass of B and speed of A is twice as much as that of B, which one of the following statements is correct? |
| A. | Since kinetic energy is inversely proportional to speed of the object, the kinetic energy of A < |
| B. | Kinetic energy of A = kinetic energy of B; because, kinetic energy is independent of speed of the ob |
| C. | Kinetic energy of A = 4 × Kinetic energy of B |
| D. | Kinetic energy of A = 1⁄4 × Kinetic energy of B |
| Answer» D. Kinetic energy of A = 1⁄4 × Kinetic energy of B | |
| 2298. |
The specific latent heat of vaporization is |
| A. | the amount of heat required to change the phase of a substance from liquid to gas without any change |
| B. | the amount of heat required to raise the temperature of a 1 kg of a substance by 1 K |
| C. | the amount of heat required to change the phase of a 1 kg of substance from liquid to gas without an |
| D. | the amount of heat required to change the phase of a 1 kg of substance from solid to liquid without |
| Answer» D. the amount of heat required to change the phase of a 1 kg of substance from solid to liquid without | |
| 2299. |
An environmental hazard when fertilizers leached from the fields into rivers and lakes is termed as |
| A. | eutrophication |
| B. | leaching |
| C. | all of them |
| D. | pollution |
| Answer» B. leaching | |
| 2300. |
Melting is the change of state |
| A. | from liquid to gas with change in temperature of 75 °C |
| B. | from solid to liquid with change in temperature of 25 °C |
| C. | from liquid to gas without change in temperature |
| D. | from solid to liquid without change in temperature |
| Answer» E. | |