InterviewSolution
Saved Bookmarks
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.
| 51. |
Fluorine has lower electron affinity than chlorine because ofA. Smaller radius of fluorine, high densityB. Smaller radius of chlorine, high densityC. Bigger radius of fluorine, less densityD. Bromine radius of chlorine, less density |
| Answer» Correct Answer - A | |
| 52. |
Which statement is correctA. For potassium, the atomic radius `lt` ionic radius, but for bromine, the atomic radius `gt` ionic radiusB. For potassium and bromine both, the atomic radii `gt` ionic radiiC. For potassium and bromine both, the atomic radii `lt` ionic radiiD. For potassium, the atomic radius `gt` ionic radius but for bromine, the atomic radius `lt` ionic radius |
| Answer» Correct Answer - D | |
| 53. |
On moving from left to right across a period in the periodic table the metallic characterA. IncreaseB. DecreasesC. Remains constantD. First increase and then decreases |
| Answer» Correct Answer - B | |
| 54. |
In the main group elements (i) as we proceed down the same group in the periodic table and (ii) as we proceed from left to right in the same period, the atomic radiusA. (i) Increase continuously, (ii) Decreases continuouslyB. (i) Decreases continuously, (ii) Increases continuouslyC. (i) Increases continuously, (ii) Decreases upto the group IV and then increases upto the end of the periodD. (i) Decreases continuously, (ii) Decreases upto the group IV and then increases upto the end of the period |
| Answer» Correct Answer - A | |
| 55. |
Nitrogen has lower electron affinity than its preceding element carbon becauseA. Electron affinity decreases along a periodB. Electron affinity generally increases along a periodC. Nitrogen atom has half filled p-orbitalD. Nitrogen is a p-block element |
| Answer» Correct Answer - C | |
| 56. |
Which configuration represents a noble gasA. `1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(10)4s^(2)`B. `1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)`C. `1s^(2)2s^(2)2p^(6)3p^(6)`D. `1s^(2)2s^(2)2p^(6)3s^(2)` |
| Answer» Correct Answer - B | |
| 57. |
All element in 3rd period haveA. An atomic number 3B. 3 complete sub-shellsC. Valence electrons shellD. 3 electrons less than the octet |
| Answer» Correct Answer - C | |
| 58. |
Msot electronegative element isA. AlB. CC. SiD. Be |
| Answer» Correct Answer - B | |
| 59. |
Which of the following is not a periodic propertyA. ElectronegativityB. Atomic volumeC. Covalent radiiD. Atomic mass |
| Answer» Correct Answer - D | |
| 60. |
Statement 1 : The electron gain enthalpies have large negative values towards the upper right of the periodic table preceding the noble gases. Statement 2 : The effective nuclear charge increases from left to right across a period and consequently it will be easier to add an electron to a smaller atom since the added electron on an average would be closer to the positively charged nucleus. |
| Answer» Correct Answer - C | |
| 61. |
Last element of group-IV is found to beA. Strong metallicB. Weak metallicC. Strong non-metallicD. Weak non-metallic |
| Answer» Correct Answer - B | |
| 62. |
Which among the following has smallest bond angle ?A. `H_(2)O`B. `NH_(3)`C. `CH_(4)`D. `CO_(2)` |
| Answer» Correct Answer - A | |
| 63. |
The element with atomic number 58 belongs toA. s-blockB. p-blockC. d-blockD. f-block |
| Answer» Correct Answer - A | |
| 64. |
The element with quantum numbers n=2, l=1, m=1, s=-1/2 has the following position in the periodic tableA. Group VII-A, period IIB. Group 0, period IIC. Group VII-A, period IIID. Group 0, period III |
| Answer» Correct Answer - B | |
| 65. |
An element `X` belongs to the fourth period and the fifteenth group of the periodic table. Which one of the following is true regarding the outer electronic configuration of `X`? It hasA. Partially filled d orbitals and completely filled s orbitalsB. Completely filled s-orbital and completely filled p-orbitalsC. Completely filled s-orbital and half-filled p-orbitalsD. Half-filled d-orbitals and completely filled s-orbitals |
| Answer» Correct Answer - C | |
| 66. |
Elements up to atomic number `103` have been synthesized and studied. If a newly discovered element is found to have an atomic number `106`, its electronic configuration will beA. `[Rn]5 f^(14)6d^(4)7s^(2)`B. `[Rn]5f^(14)6d^(5)7s^(1)`C. `[Rn]5f^(14)6d^(6)7s^(0)`D. `[Rn]5f^(14)6d^(1)7s^(2)7p^(3)` |
| Answer» Correct Answer - A | |
| 67. |
The element with atomic number 117 if discovered would be placed inA. Noble gas familyB. Alkali familyC. Alkaline earth familyD. Halogen family |
| Answer» Correct Answer - D | |
| 68. |
Element of atomic number 23 is placed in the periodic table inA. s-blockB. p-blockC. d-blockD. f-block |
| Answer» Correct Answer - C | |
| 69. |
Group separated from fungi by Whittaker isA. PhycomycetesB. MyxomycetesC. ZygomycetesD. Deuteromycetes. |
| Answer» Correct Answer - B | |
| 70. |
Nutrition in Protista isA. PhagotrophicB. AutotrophicC. SaprotrophicD. All the above. |
| Answer» Correct Answer - D | |
| 71. |
Ecologically fungi areA. ProducersB. ConsumersC. DecomposersD. All the above. |
| Answer» Correct Answer - C | |
| 72. |
Which one of the following orders presents the correct sequence of the increasing basic nature of the given oxides?A. `Al_(2)O_(3)ltMgOltNa_(2)OltK_(2)O`B. `MgOltK_(2)OltAl_(2)O_(3)ltNa_(2)O`C. `Na_(2)OltK_(2)OltMgOltAl_(2)O_(3)`D. `K_(2)OltNa_(2)OltAl_(2)O_(3)ltMgO` |
|
Answer» Correct Answer - A As metallic character of element attched to oxygen atom increases, the difference between the electronegativity values of element and oxygen increases and thus basic character of oxides increases and vice-versa. Hence the increasing correct order of basic nature `Al_(2)O_(3)ltMgOltNa_(2)OltK_(2)O`. |
|
| 73. |
In photosynthetic bacteria, the pigments occur inA. ChromoplastsB. ChromatophoresC. LeucoplastsD. Chloroplasts |
| Answer» Correct Answer - B | |
| 74. |
Which statement is correct for bacterial transduction : -A. Transfer of some genes from one bacteria to another bacteria through virusB. Transfer of genes from one bacteria to another bacteria by establishing contactC. Bacteria obtained its DNA directly from mother cellD. Bacteria obtained DNA from other external source |
| Answer» Correct Answer - A | |
| 75. |
Organisms which obtain energy by the oxidation of reduced inorganic compounds are calledA. PhotoautotrophsB. ChemoautotrophsC. SaprozoicD. Coproheterotrophs |
| Answer» Correct Answer - B | |
| 76. |
Phylogenetic system brings outA. Reproductive similaritiesB. Grouping according to morphological charactersC. Grouping on the basis of increasing complexitiesD. Grouping according to evolutionary trends and genetic relationships. |
| Answer» Correct Answer - D | |
| 77. |
Which of the following was given the status of kingdom in the classification system given by Copeland ?A. ProkaryotesB. MyxomycetesC. Eukaryotic algaeD. Protista |
| Answer» Correct Answer - A | |
| 78. |
Phenetic classification of organisms is based onA. ancestral lineage of existing organismsB. observable characteristic of existing organismsC. dendrograms based on DNA characteristicsD. sexual characteristics. |
| Answer» Correct Answer - B | |
| 79. |
Phylogenetic system was given byA. Engler and PrantlB. PlinyC. WhittakerD. John Ray. |
| Answer» Correct Answer - A | |
| 80. |
In three kingdom classification, the kingdom Protista includesA. Unicellular eukaryotic organisms onlyB. Unicellular prokaryotic organisms onlyC. Wide variety of unicellular, mostly aquatic eukaryotesD. Wide variety of unicellular, mostly terrestrial Prokaryotes |
| Answer» Correct Answer - C | |
| 81. |
Position of bacteria in a kingdom system of classification proposed by Linnaeus isA. MoneraB. ProtistaC. PlantaeD. Animalia |
| Answer» Correct Answer - C | |
| 82. |
Assertion : Two kingdom system was proposed by Linnaeus. Reason : This includes kingdom- Prokarya and Eukarya.A. Both Assertion and Reason are true, but Reason is the correct explanation of Asseration.B. Both Asseration and Reason are true , but Reason is not the correct epxlantaion of Asseration.C. Asseration is true , but Reason is falseD. Asseration is false , but Reason is true |
|
Answer» Correct Answer - C As per two kingdom systems of classification , given by Linnaeus living organisms are classified into kingdom - Plantae (including all plants) and kingdom -Animalia (including all animals). |
|
| 83. |
Five kingdom classification was proposed in the yearA. 1959B. 1969C. 1919D. 1859 |
| Answer» Correct Answer - B | |
| 84. |
Position of bacteria in a kingdom system of classification proposed by Linnaeus isA. MoneraB. ProtistaC. PlantaeD. Mychota |
| Answer» Correct Answer - C | |
| 85. |
`{:(,"Column I",,,"Column II"),((A),"Artificial",,,1."AW Eichler"),((B),"Phylogenetic system",,,2."Peter Sneath "),((C),"Phenetic system",,,3."C Linnaeus"),((D),"System Naturae ",,,4."Theophrastus"):}`A. `{:(,A,B,C,D),((a),4,1,2,3):}`B. `{:(,A,B,C,D),((b),1,2,3,4):}`C. `{:(,A,B,C,D),((c),4,3,2,1):}`D. `{:(,A,B,C,D),((d),2,4,1,3):}` |
| Answer» Correct Answer - A | |
| 86. |
An artifical system of classification was proposed byA. Bentham and HookerB. LinnaeusC. Engler and PrantlD. Bessey. |
| Answer» Correct Answer - B | |
| 87. |
Die Naturlichen Pflanzenfamilien was written byA. LinnaeusB. HutchinsonC. Engler and PrantlD. De Candolle. |
| Answer» Correct Answer - C | |
| 88. |
Natural system of classification was proposed byA. Bentham and HookerB. HutchinsonC. Whittaker D. Engler and Prantl. |
| Answer» Correct Answer - A | |
| 89. |
Natural system of classification differs from artificial system inA. taking only one floral traitB. employing the vegetative traitC. developing evolutionary trendsD. bringing out similarities and dissimilarities between the organisms being studied |
| Answer» Correct Answer - D | |
| 90. |
Natural system of classification was proposed byA. Bentham and HookerB. HutchinsonC. WhittakerD. Engler and Prantl. |
| Answer» Correct Answer - A | |
| 91. |
In an artificial system of classificationA. A large number of characters are taken into considerationB. Correlated characters are more importantC. Physiological characters are relied uponD. One or a few morphological characters are considered. |
| Answer» Correct Answer - D | |
| 92. |
Advantage(s) of phylogenetic system over artificial system of classification is/ areA. inclues overall similaritiesB. based on evoluation and historyC. helps to predict organism profile without seeing itD. All of the above |
| Answer» Correct Answer - D | |
| 93. |
The system of classification proposed by Linnaeus was artificial becauseA. it considered physiological characters along with morphologyB. it considered evolutionary relationships of plantsC. it takes into account similarities and differences in few unifying charactersD. None of the above |
| Answer» Correct Answer - C | |
| 94. |
Artificial system of classification of plants was first.A. Engler and PrantlB. Bentham and HookerC. SneathD. Linnaeus |
| Answer» Correct Answer - D | |
| 95. |
The artificial system of classification is based onA. evolutionary trendsB. Floral charactersC. only a few morphological charactersD. None of the above |
| Answer» Correct Answer - C | |
| 96. |
A natural system of classification isA. based on a few charactersB. based on all natural affinitiesC. based on phylogeny only.D. None of the above |
| Answer» Correct Answer - B | |
| 97. |
Which of the following is a symbiotic nitrogen fixer ?A. AzotobacterB. FrankiaC. AzollaD. Glomus |
| Answer» Correct Answer - B | |
| 98. |
Viroids discovered by Diener (1971) are infectious agents and cause diseases in plants only. They differ from viruses in beingA. naked ssDNA molecules without protein coatB. naked ssRNA molecule of 250-400 nucleotides without protein coatC. naked DNA packaged with viral genomeD. satellite DNA packaged with viral genome |
| Answer» Correct Answer - B | |
| 99. |
The kingdom - Monera includesA. unicellular photosynthetic organismsB. prokaryotic organism with incipient nucleusC. non - photosynthetic multicellular organismsD. true nucleate nuicellular organisms |
| Answer» Correct Answer - B | |
| 100. |
The elements of same group of the periodic table haveA. Atomic numberB. Electronic configurationC. Atomic weightD. Number of electrons in the valence shell |
| Answer» Correct Answer - D | |