MCQOPTIONS
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MCQOPTIONS
This section includes 1184 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 351. |
The word Alkali means__________________? |
| A. | Base |
| B. | Basic salt |
| C. | Ashes |
| D. | Spirit |
| Answer» D. Spirit | |
| 352. |
The weight of a metal of equivalent of 12 which will give 0.475g of its chloride is_______? |
| A. | 0.12g |
| B. | 0.16g |
| C. | 0.18g |
| D. | 0.24g |
| Answer» D. 0.24g | |
| 353. |
The weakest (in strength) of the following intermolecular forces is_______________? |
| A. | Hydrogen bonding |
| B. | Vander Waals force |
| C. | Forces among the polar molecules |
| D. | Ionic bond |
| Answer» C. Forces among the polar molecules | |
| 354. |
The volume strength of 1.5 N H2O2 solution is_______? |
| A. | 4.8 |
| B. | 5.2 |
| C. | 8.8 |
| D. | 8.4 |
| Answer» E. | |
| 355. |
The volume occupied by 2.8 g of N2 at STP______________________? |
| A. | 2.24 dm3 |
| B. | 22.4 dm3 |
| C. | 1.12 dm3 |
| D. | 112 dm3 |
| Answer» B. 22.4 dm3 | |
| 356. |
The volume occupied by 1.4g CO at S.T.P is___________________? |
| A. | 22.4 dm³ |
| B. | 2.24 dm³ |
| C. | 1.12 cm³ |
| D. | 1.12 dm³ |
| Answer» E. | |
| 357. |
The viscosity of solids is________________? |
| A. | Infinite |
| B. | Negligible |
| C. | Medium |
| D. | No concept of viscosity in solid |
| Answer» B. Negligible | |
| 358. |
The velocity of the photon____________________? |
| A. | Is independent of wavelength |
| B. | Depends upon source |
| C. | Depends upon its frequency |
| D. | Equals to the square of amplitude |
| Answer» B. Depends upon source | |
| 359. |
The value of e/m ratio of electron is________________? |
| A. | 6.02 x 1023 C/kg |
| B. | 1.7588 x 1020 C/kg |
| C. | 9.1095 x 10-31 C/kg |
| D. | 1.7588 x 1011 C/kg |
| Answer» E. | |
| 360. |
The value of activation energy is primarily determined by_______________? |
| A. | Temperature |
| B. | Effective collision |
| C. | Concentration of reactants |
| D. | Chemical nature of reactants and products |
| Answer» C. Concentration of reactants | |
| 361. |
The valency of carbon Atom is __________ ? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» E. | |
| 362. |
The use of CaCl2 and PCl5 in the process of crystallization is as a____________________? |
| A. | oxidizing agent |
| B. | reducing agent |
| C. | drying agent |
| D. | colouring agent |
| Answer» D. colouring agent | |
| 363. |
The use of antifreeze in the automobile radiator is an important application of__________________? |
| A. | constitutive property |
| B. | additive property |
| C. | colligative property |
| D. | intrinsic property |
| Answer» D. intrinsic property | |
| 364. |
The unit of the rate constant (k) is same as that of rate of reaction________________? |
| A. | First order reaction |
| B. | Second order reaction |
| C. | Zero order reaction |
| D. | Third order reaction |
| Answer» D. Third order reaction | |
| 365. |
The unit of molality is__________________? |
| A. | moles dm-3 |
| B. | moles kg-1 |
| C. | gram dm-3 |
| D. | none |
| Answer» C. gram dm-3 | |
| 366. |
The type of hybridisation of boron in diborane is______? |
| A. | Sp- hybridisation |
| B. | Sp2- hybridisation |
| C. | Sp3- hybridisation |
| D. | Sp3d2- hybridisation |
| Answer» B. Sp2- hybridisation | |
| 367. |
The type of filtering media used for filtration depending upon____________________? |
| A. | Nature of reactants |
| B. | Nature of crucible |
| C. | Nature of product |
| D. | Nature of precipitate |
| Answer» E. | |
| 368. |
The ttractive forces between the partial positive end of one molecule and partial negative end of other molecule are called________________? |
| A. | Dipole-dipole forces |
| B. | Ion dipole-dipole forces |
| C. | London dispersion forces |
| D. | Debye forces |
| Answer» B. Ion dipole-dipole forces | |
| 369. |
The tip of funnel should touch the wall of the breaker in order to avoid____________________? |
| A. | Inconsistent flow of filtration |
| B. | splashing |
| C. | premature crystallization |
| D. | all of above |
| Answer» C. premature crystallization | |
| 370. |
The test which is used for the identification of amino-acids is_________________? |
| A. | Ninhydrin test |
| B. | Molisch test |
| C. | Biuretic test |
| D. | Benedict test |
| Answer» B. Molisch test | |
| 371. |
The term internal salt refers to_____________________? |
| A. | Acidic character of amino acids |
| B. | Basic character of amino acids |
| C. | Dipolar character of amino acids |
| D. | Non-polar structure of amino acids |
| Answer» D. Non-polar structure of amino acids | |
| 372. |
The technique used to separate components of mixture in solid phase ? |
| A. | Crystallization |
| B. | Filtration |
| C. | Sublimation |
| D. | Solvent extraction |
| Answer» D. Solvent extraction | |
| 373. |
The systematic name of sucrose is_______? |
| A. | 1-α-D- glucopyranosyl-2-β-D-fructopyranoside |
| B. | 11-α-D-glucopyranosyl-2-β-D-fructofuranoside |
| C. | 1-α-D- glucofuranosyl-2-α-D- fructopyranoside |
| D. | 1-β- D- glucofuranosyl-2-α- D- fructofuranoside |
| Answer» B. 11-α-D-glucopyranosyl-2-β-D-fructofuranoside | |
| 374. |
The substances that reduces the effectiveness of a catalyst are called ___________________? |
| A. | Promoters |
| B. | Poisoning catalysts |
| C. | Inhibitors |
| D. | pro-catalysts |
| Answer» C. Inhibitors | |
| 375. |
The substance used in cancer therapy is___________? |
| A. | Fe |
| B. | Co |
| C. | Ni |
| D. | Rn |
| Answer» C. Ni | |
| 376. |
The structure of H2O2 is_______? |
| A. | Planar |
| B. | Non- polar |
| C. | Spherical |
| D. | Linear |
| Answer» C. Spherical | |
| 377. |
The structure of ethyne is_________________? |
| A. | angular |
| B. | trigonal |
| C. | linear |
| D. | trigonal planar |
| Answer» D. trigonal planar | |
| 378. |
The strength of solution of an element whose electrode potential is to be measured is________________? |
| A. | 2M |
| B. | 1N |
| C. | 1m |
| D. | 1M |
| Answer» E. | |
| 379. |
The stationary and mobile phases in paper chromatography are____________? |
| A. | Liquid/liquid |
| B. | Solid/liquid |
| C. | Liquid/solid |
| D. | Liquid/gas |
| Answer» C. Liquid/solid | |
| 380. |
The spreading of fragrance or scent in air is due to_______________? |
| A. | Diffusion |
| B. | Effusion |
| C. | Attraction with air |
| D. | Low density |
| Answer» B. Effusion | |
| 381. |
The specific rate constant of a first order reaction depends on the________________? |
| A. | Time |
| B. | Concentration of the reactant |
| C. | Temperature |
| D. | Concentration of the product |
| Answer» D. Concentration of the product | |
| 382. |
The species which donate two electron pairs in a coordination compound is called__________________? |
| A. | The species which donate two electron pairs in a coordination compound is called__________________? |
| B. | mono-dentate ligand |
| C. | poly-dentate ligand |
| D. | bi-dentate ligand |
| Answer» E. | |
| 383. |
The specie which donates electrons to central metal atom in coordination sphere is called____________________? |
| A. | anion |
| B. | cation |
| C. | Ligand is positively charged |
| D. | acid |
| Answer» D. acid | |
| 384. |
The soul of chemistry is dealing with___________? |
| A. | Internal structural changes in matter |
| B. | Composition of matter |
| C. | Properties of matter |
| D. | Composition and properties of matter |
| Answer» E. | |
| 385. |
The solvent or mixture of solvents used for separation of compounds is called____________________? |
| A. | Stationary phase |
| B. | Mobile phase |
| C. | Dynamic phase |
| D. | Static phase |
| Answer» C. Dynamic phase | |
| 386. |
The solution which distils over with change in composition________________? |
| A. | ideal solution |
| B. | zeotropic solution |
| C. | azeotropic solution |
| D. | non-ideal solution |
| Answer» C. azeotropic solution | |
| 387. |
The solution remaining after the formation of crystals is called ___________________? |
| A. | Mother liquor |
| B. | Dilute solution |
| C. | Residue |
| D. | both A & B |
| Answer» B. Dilute solution | |
| 388. |
The solid which is left over the filter paper as a result of filtration_________________? |
| A. | Insoluble particles |
| B. | residue |
| C. | crystals |
| D. | mud |
| Answer» C. crystals | |
| 389. |
The solid particles only posses_____________________? |
| A. | Translational motion |
| B. | Vibrational motion |
| C. | Rotational motion |
| D. | All of above motions |
| Answer» C. Rotational motion | |
| 390. |
The sequence of zones in the rotary kiln are as____________________? |
| A. | dry zone burning zone decomposition zone cooling zone |
| B. | cooling zone burning zone decomposition zone dry zone |
| C. | burning zone cooling zone decomposition zone |
| D. | dry zone decomposition zone burning zone cooling zone |
| Answer» E. | |
| 391. |
The scientist who did not contribute in the construction of periodic table ? |
| A. | Al-Razi |
| B. | Moseley |
| C. | Dobereiner |
| D. | Democritus |
| Answer» E. | |
| 392. |
The science of fermentation is called _______ ? |
| A. | Zygology |
| B. | Zymology |
| C. | Zymurgy |
| D. | Zootaxy |
| Answer» C. Zymurgy | |
| 393. |
The sample of isotopes of an element which needs not to be vaporized in the vaporization chamer_________________? |
| A. | Gas |
| B. | Liquid |
| C. | Volatile solid |
| D. | All |
| Answer» B. Liquid | |
| 394. |
The resonance energy of benzene is__________________? |
| A. | 150.5 kJ/mol |
| B. | 250.5 kJ/mol |
| C. | 150.5 Cal/mol |
| D. | 250.5 Cal/mol |
| Answer» B. 250.5 kJ/mol | |
| 395. |
The residue obtained after the crystallization of sugar from concentrated sugar cane juice is called__________________? |
| A. | Mother liquor |
| B. | Filterate |
| C. | Extract |
| D. | Molasses |
| Answer» E. | |
| 396. |
The relatively high energy of the gauche conformation of butane is primarily associated with_________? |
| A. | Angle strain |
| B. | Torsional strain |
| C. | Steric strain |
| D. | Orbital strain |
| Answer» D. Orbital strain | |
| 397. |
The relative lowering of vapour pressure is_____________________? |
| A. | equal to the mole fraction of solvent |
| B. | equal to the mole fraction of solute |
| C. | directly proportional to the mole fraction of solute |
| D. | both B & C |
| Answer» E. | |
| 398. |
The relative lowering of vapour pressure is directly proportional to molality if the solution is________________? |
| A. | concentrated |
| B. | dilute |
| C. | saturated solution |
| D. | all of the above |
| Answer» C. saturated solution | |
| 399. |
The relative attraction of the nucleus for the electrons in a chemical bond is called _________________? |
| A. | Ionization energy |
| B. | Electron affinity |
| C. | Electro negativity |
| D. | None of the above |
| Answer» D. None of the above | |
| 400. |
The relationship between energy of a photon of light and its frequency is given by________________? |
| A. | de-Broglie duel nature of matter |
| B. | Bohrs model |
| C. | Plancks Quantum theory |
| D. | Rutherfords atomic model |
| Answer» D. Rutherfords atomic model | |