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.
| 501. |
In glycolysis, during oxidation, electrons are removed byA. Glyceraldehyde-3-phosphateB. `NAD^+`C. Molecular oxygenD. ATP |
| Answer» Correct Answer - B | |
| 502. |
In the somatic cell cycle.A. DNA replication takes place in S-phaseB. A short interphase is followed by a long mitotic phaseC. `G_2` phase follows mitotic phaseD. In `G_1` phase DNA content is double the amount of DNA present in the original cell |
| Answer» Correct Answer - A | |
| 503. |
Which is wrong about viruses ?A. They have ability to synthesiz nucleic acids and proteinsB. Antibiotics have no effect on themC. All are parasitesD. All of them have helical symmetry |
| Answer» Correct Answer - D | |
| 504. |
Which one of the following is a correct statement?A. Antheridiophores and archegoniophores are present in pteridophytesB. Origin of seed habit can be traced in pteridophytesC. Pteridophyte gametophyte has a protonemal and leafy stageD. In gymnosperm female gametophyte is free living |
| Answer» Correct Answer - B | |
| 505. |
During gamete formation, the enzyme recombinate participates duringA. Prophase-IB. Prophase -IIC. Metaphase-ID. Anaphase-II |
| Answer» Correct Answer - A | |
| 506. |
In contrast to Annelids, the Platyhelminths showA. Absence of body cavityB. Presence of pseudocoelC. Radial symmetryD. Bilateral symmetry |
| Answer» Correct Answer - A | |
| 507. |
If time of mean position from amplitude (extreme) position is 6 s. then the frequency of SHM will be :A. 0.01 HzB. 0.02 HzC. 0.03 HzD. 0.04 Hz |
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Answer» Correct Answer - D `T/4=6 sec. implies T = 24 sec.` Frequency = 1/T =1/24 Hz=0.04 Hz |
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| 508. |
Two coils have the mutual inductance of 0.05 H. The current changes in the first coil as `I=I_(0)sin omegat`, where `I_(0)=1A` and `omega=100pi"rad/s"`. The maximum emf induced in secondary coil isA. `4pi`B. `3pi`C. `2pi`D. `pi` |
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Answer» Correct Answer - D `e=M(di)/(dt)=0.005 xxd/dt(i_(0)sinomegat)` `=0.005i_(0)omegacosomegat= e_(0)cosomegat` `therefore" "e_(max)=0.005xx2xx100pi=pi` |
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| 509. |
Which of the following statements is not correct?A. Insulin maintains sugar level in the blood of a human bodyB. Ovalbumin is a simple food reserve in egg-whiteC. Blood proteins thrombin and fibrinogen are involved in blood clottingD. Denaturation makes the proteins more active |
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Answer» Correct Answer - D Due to denaturation of proteins, globules unfold and helix get uncoiled and protein loses its biological activity. |
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| 510. |
For angles of projection of a projectile at angles `(45^(@)` – θ) and `(45^(@) + θ)`, the horizontal ranges described by the projectile are in the ratio of:A. ` 1 : 1 `B. `2 : 3 `C. ` 1 : 2 `D. `2 : 1 ` |
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Answer» Correct Answer - A For complementary angles, rnage will be same OR `(R^(1))/(R^2)=[[(u^(2)sin 2(45-0))/(g)]/[[u^(2) sin2(45+0))/(g)]]=(u^(2)sin(90-20))/(u^(2)sin(90+20))` |
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| 511. |
A body of mass 3 kg is under a constant force which causes a displacement s in metres in it, given by the relation `s=1/3t^2` , where t is in seconds. Work done by the force in 2 seconds is:-A. `5/19J`B. `3/8J`C. `8/3J`D. `19/5J` |
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Answer» Correct Answer - C By using work energy theorem `W=DeltaKE=(1)/(2) mv_(2)^(2)-(1)/(2) mv_(2)^(2)` Now`s=(1)/(3)t^(2) impliesv=(2)/(3)t` `impliesv_(1)=0,v_(2)=(2)/(3)xx2=(4)/(3)ms^(-1)` Therefore W`(1)/(2)xx3((4)/(3))^(2)-(1)/(2)xx3xx(0)^(2)=(8)/(3)J` |
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| 512. |
A particle moves along a straight line AB. At a time t (in seconds) the distance x (in metres) of the particle from O is given by x = 600 + 12t – `t^3`. How long would the particle travel before coming to rest: -A. 24mB. 40mC. 56mD. 16m |
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Answer» Correct Answer - D `X=40+12t-t^(3)impliesv(dx)/(dt)=12-3t^(2)` `impliesv=0` at t=2sec Distance travelled by particle before coming to rest ltbrgex(at t=2)-x(at t=0)ltbrge`[40+12xx2-2^(3)]-[40]=16m` |
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| 513. |
Spoilage of oil can be detected by which fatty acid ?A. Oleic acidB. Linolenic acidC. Linoleic acidD. Erusic acid |
| Answer» Correct Answer - D | |
| 514. |
Which one of the following is categorised under living fossils : -A. PinusB. CycasC. SelaginellaD. Metasequoia |
| Answer» Correct Answer - B::D | |
| 515. |
Extranuclear chromosomes occur in : -A. Peroxisome, RibosomeB. Chloroplast and MitochondriaC. Mitochondria and RibosomeD. Chloroplast and Lysosome |
| Answer» Correct Answer - B | |
| 516. |
Inheritance would be extranuclear in case ofA. Killer paramaeciumB. Killer AmoebaC. EuglenaD. Hydra |
| Answer» Correct Answer - A | |
| 517. |
The salivary gland Chromosomes in the dipteran larvae, are useful in gene mappin becauseA. They have endoreduplicated chromosomesB. These are fusedC. These are easy to stainD. These are much longer in size |
| Answer» Correct Answer - A | |
| 518. |
The most apparent change during the evolutionary history of Homo-sapients is traced inA. Walking uprightB. Shortening of the jawsC. Remarkable increase in the brain sizeD. Loss of body hair |
| Answer» Correct Answer - C | |
| 519. |
A self-fertilizing trihybrid plant formsA. 4 different gametes and 16 different zygotesB. 8 different gametes and 16 different zygotesC. 8 different gametes and 32 different zygotesD. 8 different gametes and 64 different zygotes |
| Answer» Correct Answer - D | |
| 520. |
In the light of recent classification of living organisms into three domains of life (bacteria, archea and eukarya), which one of the following statements is true about archaeaA. Archaea completely differ from both prokaryotes and eukaryotesB. Archaea completely differ from prokaryotesC. Archaea resemble eukarya in all respectsD. Archaea have some novel features that are absent in other prokaryotes and eukaryotes |
| Answer» Correct Answer - D | |
| 521. |
Which one of the following is the correct difference between Rod Cells and cone cells of our retina |
| Answer» Correct Answer - 1 | |
| 522. |
The figure given below shows the conversions of a substrate into product by an enzyme. In which one of the four options (1-4) the components of reaction labelled as A, B, C and D are identified correctly - |
| Answer» Correct Answer - 1 | |
| 523. |
Main objective of production of herbicide resistant GM crops is toA. encourage eco-friendly herbicidesB. reduce herbicide accumulation in food articles for health safetyC. eliminate weeds from the field without the use of manual labourD. eliminate weeds from the field without the use of herbicides |
| Answer» Correct Answer - C | |
| 524. |
Which one of the following is wrong statement ?A. Phosphorus is a constituent of cell membranes, certain nucleic acids and all proteinsB. Nitrosomonas and Nitrobacter are chemoautotrophsC. Anabaena and Nostoc are capable of fixing nitrogen in free- living state alsoD. Root nodule forming nitrogen fixers live as aerobes under free living conditions |
| Answer» Correct Answer - A | |
| 525. |
A change in the amount of yolk and its distribution in the egg will affect :-A. FertilizationB. Formation of zygoteC. Pattern of cleavageD. Number of blastomeres produced |
| Answer» Correct Answer - 3 | |
| 526. |
Examine the figure (A-D) given below and select the right option out of 1-4, in which all the four structures A, B, C and D - |
| Answer» Correct Answer - 2 | |
| 527. |
In which of the following option correct words for all the three blanks A, B and C are indicated |
| Answer» Correct Answer - 2 | |
| 528. |
Passage cells are thin walled cells found inA. Central region of style through which the pollen tube grows towards the ovary.B. Endodermis of roots facilitating rapid transport of water from cortex to pericycleC. Phloem elements that serve as entry points for substances for transport to other plant partsD. Testa of seeds to enable emergence of growing embryonic axis during seed germination |
| Answer» Correct Answer - B | |
| 529. |
In vitro fertilization is a technique that involves transfer of which one of the following into the fallopian tube?A. Embryo only, upto 8 cell stageB. Either zygote or early embryo upto 8 cell stageC. Embryo of 32 cell stageD. Zygote only |
| Answer» Correct Answer - B | |
| 530. |
What kind of evidences suggested that man is more closely related with chimpanzee than with other hominoid apes?A. Comparison of chromosomes morphology onlyB. Evidence from fossil remains and the fossil mitochondrial DNA aloneC. Evidence from DNA extracted from sex chromosomes, autosomes & mitochondriaD. Evidence from DNA from sex chromosomes only |
| Answer» Correct Answer - C | |
| 531. |
The correct order of atomic radii in group 13 elements is(a) B < Al < In < Ga < Tl(b) B < Al < Ga < In < Tl(c) B < Ga < Al < Tl < In(d) B < Ga < Al < In < Tl |
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Answer» The correct option is : (d) B < Ga < Al < In < Tl |
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| 532. |
Which of the following oxides is most acidic in nature?(a) MgO(b) BeO(c) BaO(d) CaO |
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Answer» The correct option is : (b) BeO Explanation: In metals, on moving down the group, metallic character increases, so basic nature increases hence most acidic will be BeO. |
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| 533. |
The first ionization potentials (eV) of Be and B respectively are (a) 8.29,8.29 (b) 9.32,9.32 (c) 8.29,9.32 (d) 9.32,8.29 |
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Answer» The correct option is: (d) 9.32,8.29 Explanation: 4Be → 1s2 2s2, 5B → 1s2 2s2 2p1 Due to stable fully-filled 's'-orbital arrangement of electrons in 'Be' atom, more energy is required to remove an electron from the valence shell than 'B' atom. Therefore 'Be' has higher ionization potential than 'B'. |
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| 534. |
Which one of the following is correct order of the size of iodine species?(a) I+ > I- > I(b) I- > I > I+(c) I > I- > I+(d) I > I+ > I- |
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Answer» The correct option is : (b) I- > I > I+ Explanation: Positive ion is always smaller and negative ion is always larger than the parent atom. |
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| 535. |
Boron in green plants assists inA. Activation of enzymesB. Acting of enzyme cofactorC. PhotosynthesisD. Sugar transport |
| Answer» Correct Answer - D | |
| 536. |
The equivalent constant of the reaction: `Cu(s)+2Ag^(+)(aq.) rarr Cu^(2+)(aq.)+2Ag(s)` `E^(@)=0.46 V` at `298 K`,is:A. `4.0 xx 10^(15)`B. `2.4 xx 10^(10)`C. `2.0 xx 10^(10)`D. `4.0 xx 10^(10)` |
| Answer» Correct Answer - A | |
| 537. |
The `IUPAC` name of the compound having the formula `CH-=C-CH=CH_(2)` isA. 1-butene-3-yneB. 3-buten-1-yneC. 1-butyn-3-eneD. but-1-yn-3-ene |
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Answer» Correct Answer - A `underset("1-butene-3-yne")(underset(4)(CH)-=underset(3)(C)-underset(2)(C)H=underset(1)(C)H_(2))` |
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| 538. |
Which of the following does not show optical isomerism ?A. `[Co(en)_(3)]^(3+)`B. `[Co(en)_(2)Cl_(2)]^(+)`C. `[Co(NH_(3))_(3)Cl_(3)]^(0)`D. `[Co(en)Cl_(2)(NH_(3))_(2)]^(+)` |
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Answer» Correct Answer - C As complex of the type `[MA_(3)B_(3)]` can show geometrical isomerism knowa as facmer isomerism and not optical isomerism . So here `[Co(NH_(3))_(3)Cl_(3)]^(0)` can not show optical isomerism. |
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| 539. |
Among the following which has the highest cation to anion size ratio ?A. CsFB. LiFC. NaFD. CsI |
| Answer» Correct Answer - A | |
| 540. |
Which of the following oxidation states is the most common among the lanthanoids ?A. 2B. 5C. 3D. 4 |
| Answer» Correct Answer - C | |
| 541. |
The human body does not produce:-A. DNAB. VitaminC. HormonesD. Enzymes |
| Answer» Correct Answer - B | |
| 542. |
Two nuclei have their mass numbers in the ratio of `1:3`. The ratio of their nuclear densities would beA. `(3)^(1//3):1`B. `1:1`C. `1:3`D. `3:1` |
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Answer» Correct Answer - B `R=R_(0).A^(1//3)` So nuclear density `=(A.m)/(v)` m = mass of each nucleon, A = mass number `=(3m)/(4piR_(0)^(3))=" independent of A."` |
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| 543. |
Which of the following is an example of negative feedback loop in humansA. Secretion of sweat glands and constriction of skin blood vessels when it is too hotB. Constriction of skin blood vessels and contraction of skeletal muscles when it is too coldC. Secretion of tears after falling of sand particles into the eyeD. Salivation of mouth at the sight of delicious food |
| Answer» Correct Answer - B | |
| 544. |
First ionization potential of Be and B will be :A. 8.8 and 8.8B. 6.6 and 6.6C. 6.6 and 8.8D. 8.8. and 6.6 |
| Answer» Correct Answer - D | |
| 545. |
The fertilizer which makes the soil acidic :A. `(NH_(4))_(2)SO_(4)`B. Super phosphate of limeC. `CH_(3)COONa`D. `Ca(NO_(3))_(2)` |
| Answer» Correct Answer - A | |
| 546. |
Which of the following anions is present in the chain structure of silicates?A. `SiO_(4)^(4-)`B. `Si_(2)O_(7)^(6-)`C. `(Si_(2)O_(5)^(2-))_(n)`D. `(SiO_(3)^(2-))_(n)` |
| Answer» Correct Answer - D | |
| 547. |
What mass of sucrose(C12H22O11)of molar mass 342g is required to make 2.5 kg of 0.25 molal aq. solution ? |
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Answer» 1 molal aqueous solution of glucose contains 1kg water and 1 mole or 342 gm glucose. So 0.25 molal solution will contain 342×0,25=85,5gm glucose in 1kg water. Hence 1.0855kg 0.25 molal solution contains 0.0855 gm glucose. So 2.5kg 0.25 molal aq solution will contain 0.0855×2.5/1.0855 kg glucose = 0.197kg glucose |
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| 548. |
The potential energy of a simple harmonic oscillator when the particle is half way to its end point is (where, E is the total energy)A. 2/3 EB. 1/8 EC. 1/4 ED. 1/2 E |
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Answer» Correct Answer - C `PE=1/2Kx^2=1/2K(a/2)^2=E/4` |
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| 549. |
A cricketer catches a ball of mass 150 gm. in 0.1 second moving with speed `20 ms^(–1)`. Then he experiences force of : -A. 300 NB. 30 NC. 3 ND. 0.3 N |
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Answer» Correct Answer - B Impulse = change in momentum `F=(DeltaP)/(Deltat)=(150xx10^(-3)xx20)/(0.1)=30 N` |
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| 550. |
With what velocity should a particle be projected so that its height becomes equal to radius of earth?A. `((GM)/R)^(1//2)`B. `((8GM)/R)^(1//2)`C. `((2GM)/R)^(1//2)`D. `((4GM)/R)^(1//2)` |
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Answer» Correct Answer - A Apply energy conservation `"-GMm"/R+1/2mv^2` `=-"GMm"/"2R" rArr v=sqrt((GM)/R)` |
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