InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 351. |
Choose the process which is/are endothermic ?A. `O^(-1)+e^(-) to O^(-2)`B. `Ar to A_(r )^(+)+e^(-)`C. `Ar + e^(-) to Ar^(-)`D. `H+e^(-) to H^(-)` |
| Answer» Correct Answer - A::B::C | |
| 352. |
Which of the following is/are correct order regarding radius ?A. `Be^(+2) lt B^(+3) lt Li^(+)`B. `B^(+3) lt Be^(+2) lt Li^(+)`C. `F^(-) lt O^(-2) lt N^(-3)`D. `B^(+3) lt Ga^(+3) lt Al^(+3)` |
| Answer» Correct Answer - B::C::D | |
| 353. |
Which of the following pairs contain metalloids ?A. Ga, GeB. As, TeC. I, SbD. In, Tl |
| Answer» Correct Answer - A::B | |
| 354. |
Which type of nutrition Euglena shows ? |
| Answer» Correct Answer - Mixotrophic type | |
| 355. |
Give one example of euglenoid. |
| Answer» Correct Answer - Euglena | |
| 356. |
Name the special cells, where nitrogen fixation takes place in cyanobacteria. |
| Answer» Correct Answer - Heterocysts | |
| 357. |
Dikaryotisation occurs in Puccinia onA. Upper surface of Barberry leafB. Lower surface of Barberry leafC. Upper surface of wheat leafD. Lower surface of wheat leaf |
| Answer» Correct Answer - A | |
| 358. |
Puccinia forms uredia andA. Telia on wheat leavesB. Aecia on barberry leavesC. Pycnia on barberry leavesD. Aecia on wheat leaves |
| Answer» Correct Answer - A | |
| 359. |
Give three examples of deuteromycetes. |
| Answer» Alternaria, Collectotrichum and Trichoderma | |
| 360. |
Fungi differs from bacteria inA. Mode of nutritionB. Having NAG in cell wallC. Flagella structureD. Reserve food material as glycogen |
| Answer» Correct Answer - C | |
| 361. |
Select incorrectly matched pair :A. Rhizopus - SporangiosporeB. Penicillium - AscocarpC. Mucor - DikaryophaseD. Aspergillus - Conidia |
| Answer» Correct Answer - C | |
| 362. |
Select incorrectly matched pair :A. Mucor mucedo - CoprophilousB. Albugo candida - Fecultative parasiteC. Agaricus bisporus - Edible basidiocarpD. Puccinia graminis - Black rust fungi |
| Answer» Correct Answer - B | |
| 363. |
The smut of maize is caused byA. Ustilago avenaeB. Ustilago nudaC. Ustilago hordeiD. Ustilago maydis |
| Answer» Correct Answer - D | |
| 364. |
The number of d-electrons in `Fe^(2+)`(Z=26) is not equal to the number of electrons in which one of the following ?A. p-electrons in Cl (Z=17)B. d-electrons in Fe (Z=26)C. p-electrons in Ne (Z=10)D. s-electrons in Mg (Z=12) |
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Answer» Correct Answer - A `Fe^(+2)=3d^(6)4s^(0)` six d electrons [p-electrons in chlorine] `(1s^(2)2s^(2)2p^(6)3s^(2)3p^(5))" are = 11"` as p-electrons = 6+5=11 |
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| 365. |
A : Methanogens can show symbiotic association with eukaryotic organisms. R : They are used for the production of biogas.A. If both assertion & reason are true and the reason is the correct explanation of the assertionB. If both assertion & reason are true but the reason is not the correct explanation of the assertionC. If assertion is true statement but reason is falseD. If both assertion and reason are false statements |
| Answer» Correct Answer - B | |
| 366. |
Viruses possesA. Ribosomes to synthesize proteinB. Organelles for its vital mechanismsC. Either DNA or RNAD. None of these |
| Answer» Correct Answer - C | |
| 367. |
Tailed bacteriophages areA. Motile on surface of bacteriaB. Non-motileC. Motile on surface of plant leavesD. Actively motile in water |
| Answer» Correct Answer - B | |
| 368. |
The bacteriophages are alike (similar) to fungi in thatA. both have DNA as genetic materialB. both have RNA as genetic materialC. both show same type of reproductionD. cell wall composition in both is same |
| Answer» Correct Answer - A | |
| 369. |
Which of the following explanation is best for not placing hydrogen in either the group of alkali metals or halogens?A. The ionisation energy of hydrogen is too high for group of alkali metals, but too low of halogen groupB. Hydrogen can form compounds with all other elementsC. Hydrogen is much lighter element than the alkali metals of the halogensD. None of the above |
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Answer» Correct Answer - A The ionisation energy of hydrogen is too high for group of alkali metals, but too low for halogen group. |
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| 370. |
An ideal evolutionary classification is not possible becauseA. an organism shows both advanced and primitive charactersB. evolution occurs in many directionsC. fossil ancestry is not fully exploredD. all of the above. |
| Answer» Correct Answer - D | |
| 371. |
Myxamoeba are formed in the life cycle ofA. PhysarumB. AmoebaC. EntamoebaD. Diatoms |
| Answer» Correct Answer - A | |
| 372. |
Which one of the following organisms is not an example of eukaryotic cellsA. Amoeba proteusB. Paramecium caudatumC. Escherichia coliD. Euglena viridis |
| Answer» Correct Answer - C | |
| 373. |
Which is linked to discovery of Bordeaux mixture as fungicide ?A. Black rust of wheatB. Bacterial leaf blight of riceC. Downy mildew of grapesD. Loose smut of wheat |
| Answer» Correct Answer - C | |
| 374. |
Decomposers areA. PhagotrophsB. SaprotrophsC. OsmotrophsD. Both B and C |
| Answer» Correct Answer - D | |
| 375. |
What is name of common reproduction unit of Mycoplasma? |
| Answer» Correct Answer - Elementary bodies | |
| 376. |
Which one of the following statements about mycoplasma is wrongA. They cause disease in plantsB. They are also called PPLOC. They are pleomorphicD. They are sensitive to penicillin |
| Answer» Correct Answer - D | |
| 377. |
The sexual reproduction is absent inA. SpirogyraB. NostocC. UlothrixD. Volvox |
| Answer» Correct Answer - B | |
| 378. |
Chrysophytes areA. Diatoms and desmidsB. Diatoms and dinoflagellatesC. Slime moulds and desmidsD. Slime moulds and diatoms |
| Answer» Correct Answer - A | |
| 379. |
Which kingdom includes most diversed group of organisms and has no well defined boundaries ?A. MoneraB. ProtistaC. FungiD. Plantae |
| Answer» Correct Answer - B | |
| 380. |
Viruses cannot multiply of their own or be grown in vitro on artificial medium because theyA. are deadB. donot have sex organs and gametesC. lack genetic materialD. lack cellular machinery to use their own genetic material |
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Answer» Correct Answer - D Viruses use the metabolic machinery of the host for their reproduction as they have no cellular machinery of their own. |
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| 381. |
According to Regression Hypothesis, viruses might have originated fromA. AlgaeB. BacteriaC. Blue green algaeD. Plasmids |
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Answer» Correct Answer - B (a) Regression Hypothesis states that viruses have developed from bacteria. (b) Proto Virus Hypothesis states that viruses are early form of life originated during origin of life. (c ) Episome Hypothesis advocates that viruses are free genes and are originated from episomes and bacteria. |
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| 382. |
The correct order of increasing oxidising powerA. `F_(2)ltCl_(2)ltBr_(2)ltI_(2)`B. `F_(2)ltBr_(2)ltCl_(2)ltI_(2)`C. `Cl_(2)ltBr_(2)ltF_(2)ltI_(2)`D. `I_(2)ltBr_(2)ltCl_(2)ltF_(2)` |
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Answer» Correct Answer - D On passing from left to right in a period acidic character of the normal oxides of the element goes on increasing with increase in electronegativity. |
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| 383. |
Which of the following oxides is amphoteric in nature?A. CaOB. `CO_(2)`C. `SiO_(2)`D. `SnO_(2)` |
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Answer» Correct Answer - D CaO is basic, `CO_(2)` is acidic, `SiO_(2)` is weakly acidic. `SnO_(2)` is amphoteric. |
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| 384. |
Which of the following salts solution is/are acidic in natureA. `NaNO_(3)`B. `LiCl`C. `BeCl_(2)`D. `KCN` |
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Answer» Correct Answer - B::C `BeCl^(2)` is the salt of weak base `Be^(OH)_(2)` and strong acid HCl. It hydrolysis in water as `BeCl_(2)+2H_(2)OrarrBe(OH)_(2)+2H^(+)+Cl^(-)` |
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| 385. |
Pick out the correct statement(s) of the following.A. All atoms with an odd atomic number are necessarily paramagneticB. All atoms with an even atomic number are necessarily paramagneticC. All atoms with an even atomic number may be diamagnetic or paramagneticD. Atoms with an odd atomic number may be paramagnetic and in some cases diamagnetic |
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Answer» Correct Answer - A::C There is no way to create all pairs with odd number of electrons, many atoms with even number of electrons can have one or more unpaired electrons. |
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| 386. |
What is true about classification ?A. I, II and IIIB. II and IVC. I and IID. I and III |
| Answer» Correct Answer - A | |
| 387. |
Consider the following statements.A. I and IIB. I and IIIC. II and IIID. I, II and III |
| Answer» Correct Answer - C | |
| 388. |
Which of the following feature is not related with virus ?A. Infectivity and host specificityB. Presence of genetic materialC. Occurrence of certain enzymesD. Presence of respiration |
| Answer» Correct Answer - D | |
| 389. |
Lichens growing on tree bark are calledA. LignicolousB. TerricolousC. CorticolousD. Saxicolous |
| Answer» Correct Answer - C | |
| 390. |
Specialised structure in the thallus of lichen for nitrogen fixation and retaining moisture isA. CyphellaeB. IsidiaC. CephalodiaD. Soredia |
| Answer» Correct Answer - C | |
| 391. |
Common mycobionts and phycobionts of lichen body are respectivelyA. Ascomycetes, ChloropyceaeB. Ascomycetes, CyanophyceaeC. Basidomycetes, ChlorophyceaseD. Basidomycetes, Cyanophyceae |
| Answer» Correct Answer - A | |
| 392. |
Potato tuber spindle disease is caused byA. virusB. viroidC. prionD. satellite virus |
| Answer» Correct Answer - B | |
| 393. |
Choose the wrong statementA. Mosaic disease in tobacco and AIDS in human being are caused by virusesB. The viroids were discovered by D.I. IvanowskiC. W.M. Stanley showed that viruses could be crystallizedD. The term Contagium vivum fluidum was coined by M.W. Beijerinek |
| Answer» Correct Answer - B | |
| 394. |
In which group of organisms the cell walls form two thin overlapping shells which fit togetherA. Slime mouldsB. ChrysophytesC. EuglenoidsD. Dinofagellates |
| Answer» Correct Answer - B | |
| 395. |
Group comprising all metals isA. IIIAB. IVAC. VIIAD. IIA |
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Answer» Correct Answer - D In IIA group all elements are metal while in IIIA, IVA and VIIA groups non-metallic elements are also present. |
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| 396. |
Contagium vivum fluidum was proposed byA. D.J. lvanowskyB. M.W. BeijerneikC. StanleyD. Robert Hook |
| Answer» Correct Answer - b | |
| 397. |
A dikaryon is formed whenA. meiosis is arrestedB. the two haploid cells do not fuse imme- diatelyC. cytoplasm does not fuseD. none of the above |
| Answer» Correct Answer - b | |
| 398. |
Choose the wrong statementA. Yeast is unicellular and useful in fermentationB. Penicillium is multicellular and produces antibioticsC. Neurospora is used in the study of biochemical geneticsD. Moreis and truffles are poisonous mushrooms |
| Answer» Correct Answer - D | |
| 399. |
Which of the following statements is worng for viroidsA. Their RNA is of high molecular weightB. They lack a protein coatC. They are smaller than virusesD. They causes infections |
| Answer» Correct Answer - A | |
| 400. |
Difference between a red sea and red tide isA. Red tide takes place in red seaB. Associated with a cyanobacteria and protist respectivelyC. One is by virus and other by bacteriaD. Associated with Rhodophyceae and diatoms respectively |
| Answer» Correct Answer - B | |