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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.
| 851. |
Which one of the following is correct matchA. Reserpine – TranquilliserB. Cocaine – opiatic narcoticC. Morphine – HallucinogenicD. Bhang – Analgesic |
| Answer» Correct Answer - A | |
| 852. |
Essential amino acid isA. PhenyL alanineB. GlycineC. Aspartic acidD. Serine |
| Answer» Correct Answer - A | |
| 853. |
Molarity of liquid HCl with density equal to `1.17 g//mL` is:A. 36.5B. 18.25C. 32.05D. `42.10` |
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Answer» Correct Answer - C Density =1.17 gm/cc `rArr` 1cc, solu. Contains 1.17 gm of HCl `therefore` molarity =`(1.17xx1000)/(36.5xx1)` |
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| 854. |
A human body required the 0.01 M activity of radioactive substance after 24 h. Half life of radioactive substance is 6h. Then injection of maximum activity of radioactie substance that can be injected will beA. `0.08`B. `0.04`C. `0.16`D. `0.32` |
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Answer» Correct Answer - C At the end of 25 hrs. activity =0.01 M half life =6 hrs In 24 hrs . There are `24/6`=4 half life Activity of substance after n half life `="(A)"/2^n` `rArr "(A)"/2^4=0.01 (A)=0.16` |
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| 855. |
Which one of the following in birds, indicated their reptilian ancestryA. Two special chambers crop and gizzard in their digestive tractB. Eggs with a calcareous shellC. Scales on their hind limbsD. Four-chambered heart |
| Answer» Correct Answer - C | |
| 856. |
Ascaris is characterized byA. presence of true coelom but absence of metamerismB. presence of true coelom and metamerism (metamerisation)C. absence of true coelom but presence of metamerismD. presence of neither true coelom nor metamerism |
| Answer» Correct Answer - D | |
| 857. |
Which one correctly matched `:-`A. Vit. E – TocoferoleB. Vit. D – RiboflavinC. Vit. B – CalciferoleD. Vit. A – Thiamine |
| Answer» Correct Answer - A | |
| 858. |
Half life period of `C^14` is : -A. 500 yearsB. 5000 yearsC. 50 yearsD. `5xx 10^4` years |
| Answer» Correct Answer - B | |
| 859. |
Passive obsorption of minerals depends onA. TemperatureB. Temperature and metabolic inhibitorC. Metabolic inhibitorD. Humidity |
| Answer» Correct Answer - A | |
| 860. |
Mole fraction of solute is 0.2 in solution then lowering in V.P `DeltaP=10`. If lowering in V.P. `DeltaP=20` then mole fraction of solvent will be in solution :A. 0.2B. 0.4C. 0.6D. 0.8 |
| Answer» Correct Answer - C | |
| 861. |
Which of the following does not given iodoform test :A. 3-pentanoneB. 2-pentanoneC. EthanolD. Ethanal |
| Answer» Correct Answer - A | |
| 862. |
From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in :A. GymnospermsB. LiverwortsC. MossesD. Pteridophytes |
| Answer» Correct Answer - D | |
| 863. |
Phloem in gymnosperms lacks :A. Both sieve tubes and companion cellsB. Albuminous cells and seive cellsC. Sieve tubes onlyD. Companion cells only |
| Answer» Correct Answer - A | |
| 864. |
Protein synthesis in an animal cell occursA. On ribosomes presents in cytoplasm as well as in mitochondriaB. On ribosomes present in the nucleolus as well as in cytoplasmC. Only on ribosomes attached to the nuclear envelope and endoplasmic reticulumD. Only on the ribosomes present in cytosol |
| Answer» Correct Answer - A | |
| 865. |
A capacitor has capacity C and reactance X. If capacitance and frequency become double, then reactance will beA. 4XB. `X/2`C. `X/4`D. 2X |
| Answer» Correct Answer - C | |
| 866. |
Tangent galvanometer is used to measureA. Potential differenceB. CurrentC. ResistanceD. In measuring charge |
| Answer» Correct Answer - B | |
| 867. |
Which of the following pheniomeana exhibits particle nature of light ?A. P.E.E.B. InterferenceC. RefractionD. Polirazation |
| Answer» Correct Answer - A | |
| 868. |
In Thomson mass spectrograph `vecE bot vecB` then the velocity of underflected electron beam will be :A. `(|vecE|)/(|vecB|)`B. `vecExxvecB`C. `(|vecB|)/(|vecE|)`D. `E^2/B^2` |
| Answer» Correct Answer - A | |
| 869. |
The condition under which a microwave oven heats up a food item containing water molecules most efficiently is:A. The frequency of the microwaves must match the resonant frequency of water moleculesB. The frequency of the microwaves has no relation with natural frequency of water moleculesC. Microwaves are heat waves, so always produce heatingD. Infra-red waves produce heating in a microwave oven |
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Answer» Correct Answer - A In the presence of microwave water molecules oscillates the frequency of microwave and large heat is developed. |
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| 870. |
The half-life of a radioactive isotope `X` is `20` years. It decays to another element `Y` which is stable. The two elements `X` and `Y` were found to be in the ratio of `1 : 7` in a sample of a given rock. The age of the rock was estimated to be.A. 40 yearsB. 60 yearsC. 80 yearsD. 100 years |
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Answer» Correct Answer - B Half-life of `X rArr T_(X)=20` years `underset(1)overset("Active")X underset(" ")to underset(7)overset("Stable")Y` `(N)/(N_(0))=(1)/(1+7)=(1)/(8)=(1)/(2^(n))=(1)/(2^(3))` `n=3=(t)/(T)=(t)/(20)` `t=60` years. |
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| 871. |
The primary producers of the deep-sea hydrothermal vent ecosystem are:A. Green algaeB. chemosynthetic bacteriaC. glue-green algaeD. coral reefs |
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Answer» Correct Answer - B In deep hydrothermal vents chemosynthetic bacteria are present as there is no light energy available there. |
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| 872. |
Which of the following is correct for r-selected species ?A. Large number of progeny with small sizeB. large number of progeny with large sizeC. small numbr of progeny with small sizeD. small number of progeny with larger size |
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Answer» Correct Answer - A r-stratogists produce large of offspring of small size. |
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| 873. |
Which of the following is correctly matchedA. Aerenchyma-OpuntiaB. Age pyramid-BiomeC. Parthenium hyserophorus-Threat to biodiversityD. Stratification-population |
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Answer» Correct Answer - C Parthenium hyserophorus-Threat to biodiversity |
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| 874. |
Red List contains data or information onA. all economically important plantsB. plants whose products are I international tradeC. threatened speciesD. marine vertebrates only |
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Answer» Correct Answer - C Red data book contains list of threatened species. |
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| 875. |
Choose the correct statementA. All mammlas are viviparousB. All cyclostomes do not possess jaws and paired fins.C. All reptiles have a three-chambered heart.D. All pisces have gills covered by an operculum. |
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Answer» Correct Answer - B Animals belonging to class cyclostomata are marine vertebrates without jaw & paired fins. Example: Petromyzone & Myxine. |
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| 876. |
study the four statements (A-D) given below and select the two correct ones out of them (A) Definition of biological soecies was given by Ernst mayr (B) photoperiod does not affect reproduction in plants © Binomial nomenclature system was given by Ernst Whittaker (D) In unicellular organisms, reproduction is synonymous with growth The two correct statments areA. B and CB. C and DC. A and DD. A and B |
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Answer» Correct Answer - C Photoperiod affects reproduction in plants and decides LDP, SDP or day neutral plants. Binomial nomenclature system was proposed by Gaspard Baulin and established by Linnaeus. |
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| 877. |
In male cockroaches, sperms are stored in which part of the reproductive systemA. Seminal vesiclesB. Mushroom glandsC. TesterD. Vas deferens |
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Answer» Correct Answer - A In male cockroach sperms are stored in seminal vesicle after their release from testis. |
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| 878. |
Smooth muscles areA. Involuntary, fusiform, non-striatedB. voluntary, multinucleate, cylindricalC. involuntary, cylinderical, striatedD. voluntary, spindle-shaped, uninucleate |
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Answer» Correct Answer - A Smooth muscles are fusiform or spindle shaped non-striated in structure and involuntary in function. Because of myofilaments are found in diffused or scattered from, regulated by autonomic nervous sytem. |
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| 879. |
Loading of phloem is related toA. Increase of sugar in phloemB. Elongation of phloem cellC. Separation of phloem parenchymaD. Strengthening of phloem fiber |
| Answer» Correct Answer - A | |
| 880. |
In which of the following fruits is the edible part the aril ?A. Custard appleB. PomegranateC. OrangeD. Litchi |
| Answer» Correct Answer - D | |
| 881. |
During an injury, nasal septum gets damaged and for its recovery which cartilage is prefused Or Which of the following is a transparent tissueA. Elastic cartilageB. Hyaline cartilageC. Calcified cartilageD. Fibrous cartilage |
| Answer» Correct Answer - B | |
| 882. |
Treatment of seed at low temperature under moist conditions to break its dormancy is calledA. ScarificationB. VernalizationC. ChelationD. Stratification |
| Answer» Correct Answer - D | |
| 883. |
In photosystem-I the first electron acceptor isA. FerredoxinB. CytochromeC. PlastocyaninD. An iron sulphur protein |
| Answer» Correct Answer - D | |
| 884. |
Which of the following expressions correctly repesents the equivalent conductance at infinte dilution of `Al_(2)(SO_(4))_(3)`. Given that `Lambda_(Al^(3+))^(@)` and `Lambda_(SO_(4)^(2-))^(@)` are the equivalent conductance at infinte dilution of the respective ions?A. `Lambda_(Al^(3+))^(@)`B. `(Lambda_(Al^(3+))^(@)+Lambda_(SO_(4)^(2-)))xx6`C. `(1)/(3)Lambda_(Al^(3+))^(@)+(1)/(2)Lambda_(SO_(4)^(2-))^(@)`D. `2Lambda_(Al^(3+))^(@)+3Lambda_(SO_(4)^(2-))^(@)` |
| Answer» Correct Answer - A | |
| 885. |
The second overtone of an open organ pipe has the same frequency as the first overtone of a closed pipe `L` metre long. The length of the open pipe will beA. LB. 2LC. `(L)/(2)`D. 4L |
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Answer» Correct Answer - B `(3v)/(2l_(0))=(3v)/(4L)` `2l_(0)=4L` `l_(0)=2L` |
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| 886. |
why is vivipary an undesirable character for annual crop plants?A. It reduces the vigour of the plantB. The seeds exhibit long dormancyC. It adversely affects the fertility of the plantD. The seeds cannot be stored under normal conditions for the next season |
| Answer» Correct Answer - D | |
| 887. |
About 70% of total global carbon is found inA. OceansB. ForestsC. GrasslandsD. Agroecosystems |
| Answer» Correct Answer - A | |
| 888. |
The concept of chemical evolution is based on :A. Possible origin of life by combination of chemicals under suitable environmental conditionsB. Crystallization of chemicalsC. Interaction of water, air and clay under intense heatD. Effect of solar radiation on chemicals |
| Answer» Correct Answer - A | |
| 889. |
What is the name of joint between ribs and sternum ?A. Cartilaginous jointB. Angular jointC. Gliding jointD. Fibrous joints |
| Answer» Correct Answer - A | |
| 890. |
Select the correct option.A. There are seven pairs of vertebrosternal, three pairs of vertebrochondral and pairs of vertebral ribsB. `8^(th),9^(th)` and `10^(th)` pairs of ribs articulate directly with the sternum.C. `11^(th)` and `12^(th)` pairs of ribs are connected to sternum with the help of hyaline cartiage.D. Each rib is a flat thin bone and all the ribs are connected dorsally to the thoracic vertebrae and ventrally to the sternum. |
| Answer» Correct Answer - A | |
| 891. |
Match the hominids with their correct brain size: `{:("(a) Homo habits",,"(i) 900 cc"),("(b) Homo neanderthalensis",,"(ii) 1350 cc"),("(c) Homo erectus",,"(iii) 650-800cc"),("(d) Homo speients",,"(iv)) 1400 cc"):}`A. `{:(,(a),(b),(c),(d)),((1),(iv),(iii),(i),"(ii)"):}`B. `{:(,(a),(b),(c),(d)),((2),(iii),(i),(iv),"(ii)"):}`C. `{:(,(a),(b),(c),(d)),((3),(iii),(ii),(i),"(iv)"):}`D. `{:(,(a),(b),(c),(d)),((4),(iii),(iv),(i),"(ii)"):}` |
| Answer» Correct Answer - D | |
| 892. |
With which of the following electronic configuration of an atom has the lowest ionization enthalpy:A. `1s^(2) 2s^(2)2p^(6)`B. ` 1s^(2) 2s^(2) 2p^(5)`C. `1s^(2) 2s^(2) 2p^(3) `D. `1s^(2) 2s^(2) 2p^(5) 3s^(1)` |
| Answer» Correct Answer - D | |
| 893. |
The correct order of acid strength isA. `HClO_(4) lt HClO_(3) lt HClO_(2) lt HClO`B. `HClO_(2) lt HClO_(3) lt HClO_(4) lt HClO`C. `HClO_(4) lt HClO lt HClO_(2) lt HClO_(3) `D. `HClO lt HClO_(2) lt HClO_(3) lt HClO_(4)` |
| Answer» Correct Answer - D | |
| 894. |
`4.5 g` of aluminium (at mass `27 u`) is deposited at cathode from `Al^(3+)` solution by a certain quantity of electric charge. The volume of hydrogen gas produced at `STP` from `H^(+)` ions in solution by the same quantity of electric charge will be:A. `44.8L`B. 11.2LC. 22.4LD. 5.6L |
| Answer» Correct Answer - D | |
| 895. |
In hydrogen atom, energy of first excited state is `- 3.4 eV`. Then, `KE` of the same orbit of hydrogen atom is.A. `+ 3.4 ev`B. `+ 6.8 eV`C. `– 13.6 eV`D. `+ 13.6 eV` |
| Answer» Correct Answer - A | |
| 896. |
In which one of the following species , the central atom has the tuype of hybdridiztion which is not the same as that present in other three?A. `SF_(4 )`B. `I_(3)`C. `SbCl_(5)^(2-)`D. `Pci_(5)` |
| Answer» Correct Answer - C | |
| 897. |
A `5^(@)C` rise in the temperature is observed in a conductor by passing some current. When the current is doubled, then rise in temperature will be equal toA. `15^(@)C`B. `20^(@)C`C. `25^(@)C`D. `30^(@)C` |
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Answer» Correct Answer - B `I^(2)RT =msDeltatheta` `implies" "I^(2) prop Deltatheta` `(Deltatheta_(2))/(Deltatheta_(1))=I_(2)^(2)/I_(1)^(2)` `implies" "(Deltatheta_(2))/5=(2)^(2)" "implies Deltatheta_(2)=20^(@)C` |
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| 898. |
Turn ratio of a step-up transformer is 1 : 25. If current in load coil is 2A, then the current in primary coil will be :A. 25AB. 50AC. 0.25AD. 0.5A |
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Answer» Correct Answer - B Note : Load coil = Secondary coil `E_(s)/E_(p)=N_(s)/N_(p)=I_(p)/I_(s) implies 25/1 = I_(p)/2` Therefore `I_(p) = 50 A` |
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| 899. |
Electric field at the equator of a dipole is E. If strength and distance is now doubled then the electric field will be :A. E/2B. E/8C. E/4D. E |
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Answer» Correct Answer - C `E=(kp)/r^(3)` `implies" "Epropp/r^(3)" "implies E_(1)/E=2/8` `implies" "E_(1)=E/4` |
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| 900. |
A charge q is placed in an uniform electric field E. If it is released, then the K.E of the charge after travelling distance y will be :A. qEyB. 2qEyC. `(qEy)/2`D. `sqrt(qEy)` |
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Answer» Correct Answer - A `DeltaK.E.` = force x displacement = Work done `DeltaK.E = qEy` |
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