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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.
| 401. |
The correct relationship between the `pH` of isomolar solutions of sodium oxide `(pH_(1))`, sodium sulphide `(pH_(2))`, sodium selenide `(pH_(3))` and sodium telluride `(pH_(4))` isA. `pH_(1) lt pH_(2) lt pH_(3) lt pH_(4)`B. `pH_(1) gt pH_(2) gt pH_(3) gt pH_(4)`C. `pH_(1) lt pH_(2) lt pH_(3) ~~pH_(4)`D. `pH_(1) gt pH_(2)~~ pH_(3) lt pH_(4)` |
| Answer» Correct Answer - B | |
| 402. |
Which one of the following types of organisms occupy more than one trophic level in a pond ecosystem?A. FrogB. PhytoplanktonC. FishD. Zooplankton |
| Answer» Correct Answer - 3 | |
| 403. |
Three charges each +q, are placed at the corners of an isosceles triangle ABC of sides BC and AC, 2a D and E are the mid point of BC and CA. The work done in taking a charge Q and D to E is :A. `(3qQ)/(4pi in_(0)a)`B. `(3qQ)/(8pi in_(0)a)`C. `(qQ)/(4pi in_(0)a)`D. Zero |
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Answer» Correct Answer - D `W_(DrightarrowE)=Q[V_E-V_D]` `therefore V_E=V_DimpliesW_(DrightarrowE)=0` |
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| 404. |
The electric potential `V` at any point `(x,y,z)`, all in meters in space is given by `V= 4x^(2)` volt. The electric field at the point `(1,0,2)` in volt//meter isA. 8 along negative X - axisB. 8 along positive X - axisC. 16 along negative X - axisD. 16 along positive X - axis |
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Answer» Correct Answer - A `vecE=-[hati(deltaV)/(deltax)+hatj(deltaV)/(deltay)+hatk(deltaV)/(deltaz)]` `vecE=-[hati(8x)]` `vecE_("(1,0,2)")=-8hati` So electric field is 8 along negative x-axis. |
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| 405. |
The electron in the hydrogen atom jumps from excited state (n=3) to its ground state (n=1) and the photons thus emitted irradiate a photosensitive material. If the work function of the material is 5.1eV, the stopping potential is estimated to be: (The energy of the electron in nth state is `E_(n)=-13.6//n^(2)eV`)A. `12.1 V`B. `17.2 V`C. 7 VD. `5.1 V` |
| Answer» Correct Answer - C | |
| 406. |
Two parallel metal plates having charges `+Q` and `-Q` face each other at a certain distance between them.If the plates are now dipped in kerosene oil tank ,the electric field between the plates willA. increaseB. decreaseC. remain sameD. become zero |
| Answer» Correct Answer - B | |
| 407. |
When monochromatic radiation of intensity I falls on a metal surface, the number of photoelectrons and their maximum kinetic are N and T respectively. If the intensity of radiation is 2 I, the number of emitted electrons and their maximum kinetic energy are respectively.A. 2N and TB. 2N and 2TC. N and TD. N and 2T |
| Answer» Correct Answer - A | |
| 408. |
The electric field at a distance `3R//2` from the centre of a charge conducting spherical shell of radius `R` is `E`. The electric field at a distance `R//2` from the centre of the sphere isA. EB. `(E )/(2)`C. `(E )/(3)`D. Zero |
| Answer» Correct Answer - D | |
| 409. |
A particle having a mass of `10^(-2) kg` carries a charge of `5 xx 10^(-8) C`. The particle is given an initial horizontal velocity of `10^(5) msec^(-1)` in the presence of electric field `vec(E)` and magnetic field `vec(B)`. To keep the particle moving in a horizontal direction, it is necessary that A. `vec(B)` should be perpendicular to the direction of velocity and `vec(E)` should be along the direction of velocity B. Both `vec(B)` and `vec(E)` should be along the direction of velocity C. Both `vec(B)` and `vec(E)` are mutually perpendicular and perpendicular to the direction of velocity D. `vec(B)` should be along the direction of velocity and `vec(E)` should be perpendicular to the direction of velocityA. (c ) and (d)B. (b) and (c )C. (b) and (d)D. (a) and (c ) |
| Answer» Correct Answer - B | |
| 410. |
In the circuit shown in the figure, if the potential at point A is taken to be zero, the potential at point B is A. `+1 V`B. `-1 V`C. `+2 V`D. `-2 V` |
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Answer» Correct Answer - A By KVL along path ACDB `V_A+1+(1)(2)-2=V_B` `0+1=V_B` `impliesV_B=1"volt"` |
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| 411. |
The thermo e.m.f. E in volts of a certain thermocouple is found to vary with temperature difference q in `.^(@)C` between the two junctions according to the relation `E=30 theta-(theta^(2))/(15)` The neutral temperature for the thermo-couple will be:-A. `400^(@)C`B. `225^(@)C`C. `30^(@)C`D. `450^(@)C` |
| Answer» Correct Answer - B | |
| 412. |
Which cartilage is present at the end of long bones?A. Calcified cartilageB. Hyaline cartilageC. Elastic cartilageD. Fibrous cartilage |
| Answer» Correct Answer - B | |
| 413. |
A compound `BA_2 " has " K_(sp)=4xx10^(-12)` solubility of this comp. will be :A. `10^-(3)`B. `10^(-4)`C. `10^(-5)`D. `10^(-6)` |
| Answer» Correct Answer - B | |
| 414. |
`H_2O_2` on oxidation gives:A. `O^(-2)`B. `OH^(-)`C. `O_(2)^(-)`D. `O_2` |
| Answer» Correct Answer - D | |
| 415. |
Companion cells are closely accociated with Or Transport of food material in higher plants takes place throughA. TrichomesB. Guard cellsC. Sieve elementsD. Vessel elements |
| Answer» Correct Answer - C | |
| 416. |
cork/bottle cork is formed fromA. XylemB. Vascular CambiumC. DematogenD. Phellogen |
| Answer» Correct Answer - D | |
| 417. |
How many electrons can fit in the orbital for which n = 3 and l = 1 ?A. 2B. 6C. 10D. 14 |
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Answer» Correct Answer - A n=3 l=1 In orbital maximum two electron cal fill. |
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| 418. |
Match the Column - I with Column - II `{:("Column-I",,"Column-II"),("(a) P-wave",,"(i) Depolarisation of ventricles"),("(b) QRS complex",,"(ii) Repolarisation of ventricles"),("(c) T. Wave",,"(iii) Coronary ischemia"),("(d) Reduction in the size of T-wave",,"(iv) Depolarisation of atria"),(,,"(v) Repolarisation of atria"):}` Select the correct option:A. `{:(,(a),(b),(c),(d)),((1),(ii),(iii),(v),"(iv)"):}`B. `{:(,(a),(b),(c),(d)),((2),(iv),(i),(ii),"(iii)"):}`C. `{:(,(a),(b),(c),(d)),((3),(iv),(i),(ii),"(v)"):}`D. `{:(,(a),(b),(c),(d)),((4),(ii),(i),(v),"(iii)"):}` |
| Answer» Correct Answer - B | |
| 419. |
What is not true for genetic code :-A. It is unambiguousB. A codon in mRNA is read in a non- contiguous fashionC. It is nearly universalD. It is degenerate |
| Answer» Correct Answer - 2 | |
| 420. |
what is antisense technologyA. When a piece of RNA that is complementary in sequence is used to stop expression of a specific geneB. RNA polymerase producing DNAC. A cell displaying a foreign antigen used for synthesis of antigensD. Production of somaclonal variants in tissue cultures |
| Answer» Correct Answer - A | |
| 421. |
T.O. Diener discovered aA. BacteriophageB. Free infection DNAC. Free infectious RNAD. Infectious protein |
| Answer» Correct Answer - 3 | |
| 422. |
Manganese is required inA. Chlorophyll synthesisB. Nucleic acid synthesisC. Plant cell wall formationD. Photolysis of water during photosynthesis |
| Answer» Correct Answer - 4 | |
| 423. |
Which one of the following statements is correct with respect to AIDS?A. The HIV can be transmitted through eating food together with an infected personB. Drug addicts are least susceptible to HIV infectionC. AIDS patients are being fully cured cent per cent with proper care and nutritionD. The causative HIV retrovirus enters helper T-lymphocytes thus reducing their numbers |
| Answer» Correct Answer - D | |
| 424. |
The DNA molecule to which the gene of interst is integrated for cloning is calledA. carrierB. transformerC. vectorD. template |
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Answer» Correct Answer - C Vector. |
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| 425. |
Coconut water from a tender coconut is:A. denerated nucellusB. immature embryoC. free nuclear endospermD. innermost layers of the seed coat |
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Answer» Correct Answer - C Coconut water consist of free nuclear endosperm with each nucleus been triploid in nature. |
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| 426. |
The species confined to a particular region and not found elsewhere is termed asA. RateB. KeystoneC. AlienD. Endemic |
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Answer» Correct Answer - D Species finds only in a particular region are called as endemic species. |
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| 427. |
In taxonomic classification the correct sequence is ..........(A) class-family-tribe-order-genus-species(B) class-order-family-tribe-genus-species(C) tribe-order-family-genus-species(D) class-tribe-order-family-genus-species |
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Answer» (B) class-order-family-tribe-genus-species |
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| 428. |
The absolute enthalpy of neutralization of the reaction, `MgO(s)+2HCl(aq.)+H_(2)O(l)` will beA. `57.33 kJ "mol"^(-1)`B. `-57.33 kJ "mol"^(-1)`C. Greater than `=57.33 KJ "mol"^(-1)`D. Less than `=57.33 KJ "mol"^(-1)` |
| Answer» Correct Answer - C | |
| 429. |
A hollow cylinder has a charge `qC` within it. If `phi` is the electric flux in unit of voltmeter associated with the curved surface `B` the flux linked with the plance surface `A` in unit of voltmeter will be A. `(q)/(in_(0))-phi`B. `(1)/(2)((q)/(in_(0))-phi)`C. `(q)/(2 in_(0))`D. `(phi)/(3)` |
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Answer» Correct Answer - B `phi_("total")=phi_("curved")+phi_("plane surfaces")=(q)/(in_(0))` ` phi+2phi_(A)=(q)/(in_(0))implies theta_(A)=(1)/(2)[((q)/(in_(0))-phi)` |
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| 430. |
The cell junctions called tight, adhering and gap junctions are found in :A. Neural tissueB. Muscular tissueC. Connective tissueD. Epithelial tissue |
| Answer» Correct Answer - 4 | |
| 431. |
In histroy of biology , Human genome project led to the development ofA. BiosystematicsB. BiotechnologyC. BiomonitoringD. Bioinformatics |
| Answer» Correct Answer - D | |
| 432. |
Which one of the following is not considered as a part of the endomembrane system ?A. LysosomeB. Golgi complexC. PeroxisomeD. Vacuole |
| Answer» Correct Answer - C | |
| 433. |
At metaphase, chromosmes are attached to the spindle fibres by theirA. CentromereB. SatellitesC. Secondary constrictionsD. Kinetochores |
| Answer» Correct Answer - D | |
| 434. |
Which destroys the acetyl choline esterase :A. MalathioneB. COC. KCND. Colchicine |
| Answer» Correct Answer - A | |
| 435. |
ABO blood group have :A. Two codominant and one recessive alleleB. Two codominant and two recessive alleleC. Two incompletely dominant genesD. Two pseudo alleles |
| Answer» Correct Answer - A | |
| 436. |
Under the influence of a unifrom magnetic field a charged particle is moving on a circle of radius `R` with Constnant speed `v`. The time period of the motionA. depends on R and not on vB. depends on v and not on RC. depends on both R and vD. is independent of both R and v |
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Answer» Correct Answer - D `T=(2pim)/(qB)` which is independent of both R and v. |
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| 437. |
A charged particle (charge `q`) is moving in a circle of radius `R` with unifrom speed `v`. The associated magnetic moment `mu` is given byA. q v RB. q v R/2C. `q v R^(2)`D. `qvR^(2)/2 ` |
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Answer» Correct Answer - B Magnetic moment `M=IA=((qv)/(2piR))(piR^(2))=(qvR)/(2)` |
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| 438. |
Which is the monomer of neoprene in the following?A. `CH_(2)=CH-CH=CH_(2)`B. `CH_(2)-underset(CH_(3))underset(|)C-CH=CH_(2)`C. `CH_(2)=underset(Cl)underset(|)C-CH=CH_(2)`D. `CH_(2)=CH-C-=CH` |
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Answer» Correct Answer - C `n[CH_(2)=underset("(monomer)")underset("chloroprene")underset(Cl)underset(|)C-CH=CH_(2)] overset("Polymerisation")to[-CH_(2)-underset("(polymer)")underset("Neoprene")underset(Cl)underset(|)C=CH-CH_(2)-]_(n)` |
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| 439. |
In the reaction `CH_(3)-overset(CH_(3))overset(|)CH-CH_(2)-O-CH_(2)-CH_(3)+HI overset("Heated")to`............ Which of the following compounds will be formed ?A. `CH_(3)-overset(CH_(3))overset(|)(CH)-CH_(2)OH+CH_(3)-CH_(2)-I`B. `CH_(3)-overset(CH_(3))overset(|)(CH)-CH_(2)-I+CH_(3)CH_(2)OH`C. `CH_(3)-underset(CH_(3))underset(|)(CH)-CH_(3)+CH_(3)CH_(2)OH`D. `CH_(3)-underset(CH_(3))underset(|)(CH)-CH_2OH_CH+CH_(3)CH_(3)` |
| Answer» Correct Answer - A | |
| 440. |
Which one of the following vitamins is water-soluble?A. Vitamin AB. Vitamin BC. Vitamin ED. Vitamin K |
| Answer» Correct Answer - B | |
| 441. |
RNA and DNA are chiral molecules, their chirality is due toA. D-sugar ComponentB. L-sugar componentC. Chiral basesD. Chiral phosphate ester units |
| Answer» Correct Answer - A | |
| 442. |
Which one of the following polymers is prepared by condensation polymerization?A. StyreneB. Nylon-66C. TeflonD. Rubber |
| Answer» Correct Answer - B | |
| 443. |
Which of the following is not chiral?A. 2-ButanolB. 2,3-DibromopentaneC. 3-BromopentaneD. 2-Hydroxypropanoic acid |
| Answer» Correct Answer - C | |
| 444. |
Which one of the following is a peptide hormone ?A. GlucagonB. TestosteroneC. ThyroxinD. Adrenaline |
| Answer» Correct Answer - A | |
| 445. |
for the reaction, `2A + B rarr 3C + D`, which of the following does not express the reaction rateA. `-(d[C])/(3dt)`B. `-(d[B])/(dt)`C. `(d[D])/(dt)`D. `-(d[A])/(2dt)` |
| Answer» Correct Answer - A | |
| 446. |
`~[NH (CH_(2)) NHCO (CH_(2))_(4) CO]~` is aA. copolymerB. Addition polymerC. Thermosetting polymerD. Homopolymer |
| Answer» Correct Answer - A | |
| 447. |
For the reaction `CH_(4(g))+2O_(2(g))hArrCO_(2(g))+2H_(2)O_(l)`: (`DeltaH=-170.8 kJmol^(-1)`). Which of the following statement is not true?A. At equilibrium, the concentrations of `CO_(2)(g)` and `H2_(O)(l)` are not equalB. The equilibrium constant for the reaction is given by `K_(P)` =`([C0_(2)])/([CH_(4)][O_(2)])`C. Addition of `CH_(4)(g)` or `O_(2)(g)` at equilibrium will cause a shift to the rightD. The reaction is exothermic |
| Answer» Correct Answer - B | |
| 448. |
The maximum number of molecules is present inA. 5L of `N_2` gas at STPB. 0.5 g of `H_2` gasC. 10g of `O_2` gasD. 15 L of `H_2` gas at STP |
| Answer» Correct Answer - A | |
| 449. |
Which is the best description of the behaviour of bromine in the reaction given below `H_(2)O+Br_(2) rarr HOBr+HBr`A. Both oxidized and reducedB. Oxidized onlyC. Reduced onlyD. Proton acceptor only |
| Answer» Correct Answer - D | |
| 450. |
Knife of DNA :A. DNA–ligaseB. Restriction endonucleaseC. ExonucleaseD. Peptidase |
| Answer» Correct Answer - B | |