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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.
| 701. |
The transparent lens in the human eye is held in its place byA. smooth muscles attached to the irisB. ligaments attached to the irisC. ligaments attached to the ciliary bodyD. smooth muscles attached to the ciliary body |
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Answer» Correct Answer - C Lens in the human eye is held in its place by suspensory ligaments attached to the ciliary body. |
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| 702. |
Which of the following options correctly represents the lung conditions in asthma and emphysema, respectivelyA. Increased respiratory surface, Inflammation of bronchiolesB. Increased number of bronchioles, Increased respiratory surfaceC. Inflammation of bronchioles, Decreased respiratory surfaceD. Decreased respiratory surface, Inflammation of bronchioles |
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Answer» Correct Answer - C Asthma is a difficulty in breathing causing wheezing due to inflammation of bronchi and bronchioles. Emphysema is a chronic disorder in which alveolar walls are damaged due to which respiratory surface is decreased. |
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| 703. |
Which one is wrongly matched?A. Gemma cups – MarchantiaB. Biflagellate zoospores– Brown algaeC. Uniflagellate gametes – PolysiphoniaD. Unicellular organism – Chlorella |
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Answer» Correct Answer - C `*` Polysiphonia is a genus of red algae, where asexual spores and gametes are non-motile or non-flagellated. `*` Other options (1, 2 & 4) are correctly matched |
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| 704. |
Which one of the following statements regarding enzyme inhibition is correctA. Competitive inhibition is seen when a substrate competes with an enzyme for binding to an inhibitor proteinB. Non-competitive inhibitors often bind to the enzyme irreversiblyC. Competitive inhibition is seen when the substrate and the inhibitor compete for the active site on the enzymeD. Non-competitive inhibition of an enzyme can be overcome by adding large amount of substrate |
| Answer» Correct Answer - C | |
| 705. |
Cell reactiomn is spontaneous whenA. `Delta G^(@)` is negativeB. `Delta G^(@)` is positiveC. `Delta E_("Red")^(@)` is positiveD. `Delta E_("Red")^(@)` is negative |
| Answer» Correct Answer - A | |
| 706. |
Which of the following ions is the most stable in aqueous solution ? `(At . No . Ti = 22, V = 23, Cr = 24, Mn = 25)`A. `Mn^(3+)`B. `Cr^(3+)`C. `V^(3+)`D. `Ti^(3+)` |
| Answer» Correct Answer - B | |
| 707. |
In which of the following compounds,nitrogen exhibits highest oxidation state?A. `N_(3)H`B. `NH_(2)OH`C. `N_(2)H_(4)`D. `NH_(3)` |
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Answer» Correct Answer - A Oxidation number of nitrogen `-N_(3)H= -1//3, NH_(2)OH= -1, N_(2)H_(4)=-2, NH_(3)=-3` |
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| 708. |
Which of the statements is not true ?A. `K_(2)Cr_(2)O_(7)` solution in acidic medium is orangeB. `K_(2)Cr_(2)O_(7)` solution becomes yellow on increasing the pH beyond 7C. On passing `H_(2)S` through acidified `K_(2)Cr_(2)O_(7)` solution, a milky colour is observedD. `Na_(2)Cr_(2)O_(7)` is preferred over `K_(2)Cr_(2)O_(7)` in volumetric analysis |
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Answer» Correct Answer - D Because `Na_(2)Cr_(2)O_(7)` is hygroscopic |
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| 709. |
Aluminum is exteracted from alumine `AI_(2)O_(3)` by electrolysis of a molten mixture of :A. `Al_(2)O_(3)+Na_(3)AlF_(6)+CaF_(2)`B. `Al_(2)O_(3)+KF+Na_(3)AlF_(6)`C. `Al_(2)O_(3)+HF+NaAlF_(4)`D. `Al_(2)O_(3)+CaF_(2)+NaAlF_(4)` |
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Answer» Correct Answer - A `Al_(2)O_(3)+Na_(3)AlF_(6) ("cryolite")+CaF_(2)` |
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| 710. |
Which one of the following compounds is a peroxide?A. `KO_(2)`B. `BaO_(2)`C. `MnO_(2)`D. `NO_(2)` |
| Answer» Correct Answer - B | |
| 711. |
Camphor is often used in molecular mass determination becauseA. It has a very high cryoscopic constantB. It is volatileC. It is solvent for organic substancesD. It is readily available |
| Answer» Correct Answer - A | |
| 712. |
The helical structure of protein is stabilised by:A. Hydrogen bondsB. Ether bondsC. Peptide bondsD. Dipeptide bonds |
| Answer» Correct Answer - A | |
| 713. |
One of the example of the action of the autonomous nervous system isA. Knee-jerk reponseB. Pupillary reflexC. Peristalsis of the intestinesD. Swallowing of food |
| Answer» Correct Answer - C | |
| 714. |
The shorter and longer arms of a submetacentric chromosome are referred to as :A. m-arm and n-arm respectivelyB. s-arm and l-arm respectivelyC. p-arm and q-arm respectivelyD. q-arm and p-arm respectively |
| Answer» Correct Answer - C | |
| 715. |
Study the pedigree chart of certain family given here and select the correct conclusion A. The parents could not have had a normal daughter for this characterB. The trait under study could not be colour- blindnessC. The male parent is homozygous dominantD. The female parent is heterozygous |
| Answer» Correct Answer - D | |
| 716. |
Identify the correctly matched pair:A. Kyoto protocol – Climatic changeB. Montreal Protocol - Global warmingC. Basal Convention – Biodiversity ConservationD. Ramsar Convention – Ground water pollution |
| Answer» Correct Answer - A | |
| 717. |
According to IUCN Red List, what is the status of Red Panda (Ailurus fulgens)A. Critically endangered speciesB. Vulnerable speciesC. Extinct speciesD. Endangered species |
| Answer» Correct Answer - D | |
| 718. |
About which day in a normal human menstrual cycle does rapid secretion of LH (popularly called LH-surge) normally occurs?A. `11^(th) day`B. `14^(th) day`C. `20^(th) day`D. `5^(th) day` |
| Answer» Correct Answer - B | |
| 719. |
Which one of the following is correct statement regarding the particular psychotropic drug specified?A. Morphine leads to delusions and disturbed emotionsB. Barbiturates cause relaxation and temporary euphoriaC. Hashish causes after thought perceptions and hallucinationsD. Opium stimulates nervous system and causes hallucinations |
| Answer» Correct Answer - B | |
| 720. |
Compared to blood our lymph has :A. More RBCs and less WBCsB. No plasmaC. Plasma without proteinsD. More WBCs and no RBCs |
| Answer» Correct Answer - 4 | |
| 721. |
Which of the following is commolnly used as a vector for introducing a DNA fragement in human lymhocytes?A. `lambda` phageB. Ti plasmidC. RetrovirusD. pBR 322 |
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Answer» Correct Answer - C Retrovirus is commonly used as vector for introducing a DNA fragment in human lymphocyte. Gene therapy: Lymphocyte from blood of patient are grown in culture outside the body, a functional gene is introduced by using a retroviral vector, into these lymphocyte. |
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| 722. |
Seminal plasma in humans is rich inA. Fructose and certain enzymes but poor calciumB. Fructose and calcium but has no enzymeC. Fructose, calcium and certain enzymesD. Glucose and certain enzymes but has no calcium |
| Answer» Correct Answer - 3 | |
| 723. |
What happens during fertilization in humans after many sperms reach close to the ovum?A. Only two sperms nearest the ovum penetrate zona pellucidaB. Secretions of acrosome helps one sperm enter cytoplasm of ovum through zona pellucidaC. All sperms except the one nearest to the ovum lose their tailsD. Cells of corona radiate trap all the sperms except one |
| Answer» Correct Answer - B | |
| 724. |
In compound microscope the magnification is 95, and the distance of object from objective lens 1/3.8 cm and focal length of objective is ¼ cm. What is the magnification of eye pieces when final image is formed at least distance of distinct vision :A. 5B. 10C. 100D. None |
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Answer» Correct Answer - A Compound microscope `M = m_0xxm_e` `M=(F_0)/(u+F_0)xxm_e` `implies95=(1//4)/(-1//3.8+1//4)m_e` `implies 95=19m_e " "impliesm_e=95/19=5` |
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| 725. |
Two particles are projected with same initial velocity one makes angle `theta` with horizontal while other makes an angle `theta` with vertical. If their common range is R then product of their time of flight is directly proportional to :A. RB. `R^2`C. `1/R`D. `R^0` |
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Answer» Correct Answer - A `R=(u^2sin2theta)/(g), t_1=(2usintheta)/(g)` `t_2 = (2usin(90^@-theta))/(g)=(2ucostheta)/(g)` `therefore" " t_1t_2=(4u^2sinthetacostheta)/(g)=(2R)/(g)` `or" "t_1t_2propR` |
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| 726. |
In freundlich adsorption isotherm, the value of 1/n is :A. 1 in case of physical adsorptionB. 1 in case of chemisorptionC. between 0 and 1 in all casesD. between 2 and 4 in all cases |
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Answer» Correct Answer - C between 0 and 1 in all cases |
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| 727. |
Which one of the following statements is incorrect about enzyme catalysis?A. Enzymes are denaturated by ultaraviolet rays and at high temperatureB. Enzymes are least reactive at optimum temperatureC. Enzymes are mostly proteinous in natureD. Enzyme action is specific |
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Answer» Correct Answer - B Enzymes are least reactive at optimum temperature |
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| 728. |
When `Cl_(2)` gas reacts with hot and concentrated sodium hydroxide solution, the oxidation number of chlorine changes fromA. Zero to -1 and zero to +3B. Zero to +1 and zero to -3C. Zero to +1 and zero to -5D. Zero to -1 and zero to +5 |
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Answer» Correct Answer - D `Cl_(2)+NaOHunderset("Conc.")overset("Hot")to NaCl+NaClO_(3)` |
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| 729. |
In qualitative analysis, the metals of group I can be separated from other ions by precipitating them as chloride salts. A solution initially contains `Ag^(+) " and " Pb^(+)` at a concentration of 0.10M. Aqueous HCl is added to this solution until be `Cl^(-)` concentration is 0.10M. What will be concentration of `Ag^(+) " and " Pb^(2+)` be at equilibrium ? (`K_(sp) " for AgCl " = 1.8xx10^(-10)` `K_(sp) " for " PbCl_(2) = 1.7xx10^(-5)`)A. `[Ag^(+)]=1.8xx10^(-11)M,` `[Pb^(2+)]=1.7xx10^(-4)M`B. `[Ag^(+)]=1.8xx10^(-7)M,` `[Pb^(2+)]=1.7xx10^(-6)M`C. `[Ag^(+)]=1.8xx10^(-11)M,` `[Pb^(2+)]=8.5xx10^(-5)M`D. `[Ag^(+)]=1.8xx10^(-9)M,` `[Pb^(2+)]=1.7xx10^(-3)M` |
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Answer» Correct Answer - D `[Ag^+][Cl^-]=1.8xx10^-10` `[Ag^+]=(1.8xx10^-10)/(0.1)=1.8xx10^-9M` `[Pb^(+2)][Cl^-]^2=1.7xx10^-5` `[Pb^(+2)]=(1.7xx10^-5)/(0.1xx0.1)=1.7xx10^-3M` |
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| 730. |
Suppose elements `X` and `Y` combine to form two compounds `XY_(2)` and `X_(3)Y_(2)` when 0.1 mole of former weigh `10 g` while 0.05 mole of the latter weigh `9g`. What are the atomic weights of `X` and `Y`.A. 40, 30B. 60, 40C. 20, 30D. 30, 20 |
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Answer» Correct Answer - A `XY_(2)` 0.1 mole weight=10g `therefore1` mole weight=?=100 g mol wt `X_(3)Y_(2)` 0.05 mole weight=9g `therefore1` mole weight=?=`(9)/(0.05)=180g` mol. Wt `thereforeFor` `XY_(2)` `a+2b=100` . . . (1) For `X_(3)Y_(2)` `3a+2b=180` . . . (2) equation (2)-(1) 2a=80 a=40 and b=30 |
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| 731. |
A parallel plate capacitor of plate area A and plates separation distance d is charged by applying a potential `V_(0)` between the plates. The dielectric constant of the medium between the plates is K. What is the uniform electric field E between the plates of the capacitor ?A. `E^(2)Ad//epsilon_(0)`B. `(1)/(2)epsilon_(0)E^(2)Ad`C. `epsilon_(0)EAd`D. `(1)/(2)epsilon_(0)E^(2)` |
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Answer» Correct Answer - B `"Total energy = energy density"xx"volume"` `=((1)/(2)epsilon_(0)E^(2))(Ad)` |
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| 732. |
Restriction endonucleasesA. Are used in genetic engineering for ligating two DNA moleculesB. Are used for in vitro DNA synthesisC. Are synthesized by bacteria as part of their defense mechanismD. Are present in mammalian cells for degradation of DNA when the cell dies |
| Answer» Correct Answer - C | |
| 733. |
Which of the following compounds can be used as antifreeze in automobile radiators?A. GlycolB. NitrophenolC. Ethyl alcoholD. Methyl alcohol |
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Answer» Correct Answer - A Glycol is an antifreeze agent. |
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| 734. |
A series combination of `n_(1)` capacitors, each of value `C_(1)`, is charged by a source of potential difference `4 V`. When another parallel combination of `n_(2)` capacitors, each of value `C_(2)`, is charged by a source of potential difference `V`, it has same (total) energy stored in it, as the first combination has. the value of `C_(2)`, in terms of `C_(1)`, is thenA. `(2C_(1))/(n_(1)n_(2))`B. `16 (n_(2))/(n_(1))C_(1)`C. `2(n_(2))/(n_(1))C_(1)`D. `(16C_(1))/(n_(1)n_(2))` |
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Answer» Correct Answer - D `(1)/(2)((C_(1))/(n_(1)))(4V)^(2)=(1)/(2)(n_(2)C_(2))implies C_(2)=(16C_(1))/(n_(1)n_(2))` |
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| 735. |
The potential difference that must be applied to stop the fastest photoelectrons emitted by a nickel surface , having work function `5.01 eV` , when ultraviolet light of `200 nm` falls on it , must beA. 2.4 VB. – 1.2 VC. ) – 2.4 VD. 1.2 V |
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Answer» Correct Answer - B `hv=phi_(0)+eV_(0)` where `hv=(12400)/(2000)=6.2eV` `implies V_(0)=6.2-5.01=1.19~~1.20V` |
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| 736. |
In the exteraction of copper from its sulphide ore, the metal is fanally obtained by the reduction of caprous oxide withA. copper (I) sulphideB. sulphur dioxideC. iron(II) sulphideD. carbon monoxide |
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Answer» Correct Answer - A Copper is extracted by self reduction process `2Cu_(2)O+Cu_(2)Sto6Cu+SO_(2)` |
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| 737. |
Which of the following is a commercial blood cholesterol lowering agent?A. LipasesB. Cyclosporin AC. StatinD. Streptokinase |
| Answer» Correct Answer - C | |
| 738. |
The angular resolution of a `10cm` diameter telescope at a wavelength `5000Å` is of the orderA. `10^(-4)` radB. `10^(-6)` radC. `10^(6)` radD. `10^(-2)` rad |
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Answer» Correct Answer - B use `theta ~ lambda//a ~=10^(-6) rad. ` |
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| 739. |
A stone tied to the end of string 1m long is whirled in a horizontal circle with a constant speed. If the stone makes 22 revolution in 44s, What is the magnitude and direction of acceleration of the ston is ?A. `pi^(2) ms^(-2)` and direction along the tangent to the circleB. `pi^(2) ms^(-2)` and direction along the radius towards the centre.C. `(pi^(2))/(4) ms^(-2)` and direction along the radius towards the centre.D. `pi^(2)ms^(-2)` and direction along the radius away from the centre . |
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Answer» Correct Answer - B `a_(r)=omega^(2)r=(2 pi n)^(2)r=(2 pi xx (1)/(2))^(2)(1)=pi^(2)` `a_(T)=0implies` option (2) is correct |
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| 740. |
A cross in which an organism showing a dominant phentype is crossed with the recessive parent in order to know its genotype is called:A. Back crossB. Test crossC. Dihybrid crossD. Monohybrid cross |
| Answer» Correct Answer - B | |
| 741. |
`C_(4)` plants are more efficient in photosynthesis than `C_(3)` plants due toA. Higher leaf areaB. Presence of large number of chloroplasts in the leaf cellsC. Presence of thin cuticleD. Lower rate of photorespiration |
| Answer» Correct Answer - D | |
| 742. |
Photoperiodism was first characterized inA. TobaccoB. PotatoC. TomatoD. Cotton |
| Answer» Correct Answer - A | |
| 743. |
A long solenoid of diameter 0.1 m has `2 xx 10^(4)` turns per meter. At centre of the solenoid is 100 turns coil of radius 0.01 m placed with its axis coinciding with solenoid axis. The current in the solenoid reduce at a constant rate to 0A from 4 a in 0.05 s . If the resistance of the coil is `10 pi^(2) Omega`, the total charge flowing through the coil during this time isA. `32 pi mu C `B. ` 16 mu C `C. `32 mu C `D. `16 pi mu C ` |
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Answer» Correct Answer - C `epsi=-N(d phi)/(dt)` ` |(epsi)/(R)|=(N)/(R)(dphi)/(dt)` `dq=(N)/(R) d phi` `DeltaQ=(N(Deltaphi))/(R)` `Delta Q= (Delta phi_("total"))/(R)` =`((NBA))/(R)` `=(mu_(0) ni pi r^(2))/(R)` Putting values `(4 pi xx 10^(-7) xx 100 xx 4xx piu xx (0.01)^(2))/(10 pi^(2))` `DeltaQ=32 mu C` |
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| 744. |
Two discs of same moment of inertia rotating their regular axis passing through centre and perpendicular to the plane of disc with angular velocities `omega_(1)` and `omega_(2)`. They are brought into contact face to the face coinciding the axis of rotation. The expression for loss of enregy during this process is :A. `(1)/(2) I (omega_(1)+omega_(2))^(2)`B. `(1)/(4) I (omega_(1)-omega_(2))^(2)`C. ` I (omega_(1)-omega_(2))^(2)`D. `(1)/(8) I (omega_(1)-omega_(2))^(2)` |
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Answer» Correct Answer - B `DeltaKE =(1)/(2) (I_(1)I_(2))/(I_(1)+I_(2))(omega_(1)-omega_(2))^(2)` ` =(1)/(2) (I^(2))/((2I))(omega_(1)-omega_(2))^(2)` ` =(1)/(4) I(omega_(1)-omega_(2))^(2)` |
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| 745. |
A `p-n` photodiode is made of a material with a band gap of `2.0 eV`. The minimum frequency of the radiation that can be absorbed by the material is nearlyA. `1xx10^(14)Hz`B. `20xx10^(14)Hz`C. `10xx10^(14)Hz`D. `5xx10^(14)Hz` |
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Answer» Correct Answer - D Frequency corresponding to 2eV is given by `rArr 2xx1.6xx10^(-19)=66xx10^(-34)xxv` `v=(3.2xx10^(-19))/(6.6xx10^(-34))=5xx10^(14)Hz` |
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| 746. |
Two periodic waves of intensities `I_(1)` and `I_(2)` pass through a region at the same time in the same direction. The sum of the maximum and minimum intensities is:A. `(sqrt(I_(1))-sqrt(I_(2)))^(2)`B. `2(I_(1)+I_(2))`C. `I_(1)+I_(2)`D. `(sqrt(I_(1))+sqrt(I_(2)))^(2)` |
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Answer» Correct Answer - B `I=I_(1)+I_(2)+2sqrt(I_(1)I_(2))cos phi` `I_("max")=(sqrt(I_(1))+sqrt(I_(2)))^(2)` `I_("min")=(sqrt(I_(1))-sqrt(I_(2)))^(2)` `I_("max")+I_("min")` `(sqrt(I_(1))+sqrt(I_(2)))^(2)+(sqrt(I_(1))-sqrt(I_(2)))^(2)` `=(I_(1)+I_(2)+2sqrt(I_(1)I_(2)))+(I_(1)+I_(2)-2sqrt(I_(1)I_(2)))` `2(I_(1)+I_(2))` |
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| 747. |
If Q, E and W denote respectively the heat added, change in internal energy and the work done in a closed cycle process, thenA. E = 0B. Q = 0C. W = 0D. Q = W = 0 |
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Answer» Correct Answer - A In cyclic process since initial and final states are same internal energy is a state function therefore initial and final internal energies are also same. So change in internal energy is zero hence E = 0. |
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| 748. |
The radius of hydrogen shell is 0.53Å, then in first excited state radius of shell will be :A. 2.12 ÅB. 1.06 ÅC. 8.5 ÅD. 4.24 Å |
| Answer» Correct Answer - A | |
| 749. |
In `PO_(4)^(3-)` the formal charge on each O-atom and `P-O` bond order respectively are .A. 0.75 and 1.25B. 0.5 and 2C. 1 and 1.5D. 0.75 and 2 |
| Answer» Correct Answer - A | |
| 750. |
`4NH_(3)+5O_(2)to6H_(2)O+4NO` When one mole ammonia and one mole oxygen taken :A. Oxygen is completely consumedB. Ammonia is completely consumedC. Both (1) and (2) are correctD. No one is correct |
| Answer» Correct Answer - A | |