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.
| 401. |
Find the correct match A. a(ii), b(iii), c(i), d(v)B. a(ii), b(v), c(iv), d(i)C. a(ii), b(v), c(iv), d(iii)D. a(ii), b(iii), c(i), d(iv) |
| Answer» Correct Answer - C | |
| 402. |
Red-organge photosenitive pigment in Euglena isA. AstaxanthinB. ChlorophyllC. PhycocyaninD. Phycoerythrin |
| Answer» Correct Answer - B | |
| 403. |
Which one of the following combination of characters is correct for the given fungal group ?A. Algal fungi : Coenocytic, cellulosic wall, zoospore, zygospore, dikaryophase presentB. Conjugating fungi : Septate mycellium, chitinous wall, sporangiospore, shorter (n+n) phaseC. Sac fungi : Septate mycellium, Ascogonium, Crozier stage, meiospores as ascosspores shorter dikaryophaseD. Club fungi : Shorter primary mycellium stage, No sex organs, dominant dikaryophase zygosporic meiosis |
| Answer» Correct Answer - C | |
| 404. |
Which of the following shows maximum diversity?A. PlantaeB. AnimaliaC. MoneransD. Protistans |
| Answer» Correct Answer - B | |
| 405. |
Term systematics was used by Linnaeus. It includesA. diversity of organismsB. taxonomy and phylogenyC. both (1) and (2)D. none of the above |
| Answer» Correct Answer - C | |
| 406. |
Which of the element is expected to have lowest first ionisation enthalpyA. SrB. AsC. XeD. S |
|
Answer» Correct Answer - A Sr has the lowest first ionisation energy among the given options. |
|
| 407. |
The increasing order of the first ionisation enthalpies of the elements`B,P,S` and `F` (lowest first) is:A. `FltSltPltB`B. `PltSltBltF`C. `BltPltSltF`D. `BltSltPltF` |
|
Answer» Correct Answer - D The value of first ionisation enthalpies for P, B, F and S are 1012, 801, 1681 and 999 kJ `mol^(-1)` respectively. So correct increasing order is `BltSltPltF` |
|
| 408. |
Which of the following elements will have the lowest first ionisation energy?A. MgB. RbC. LiD. Ca |
|
Answer» Correct Answer - B As it belongs to IA group and has maximum size. |
|
| 409. |
The electron affinity ofA. Carbon is greater than oxygenB. Sulphur is less than oxygenC. Iodine is greater than bromineD. Bromine is less than chlorine |
|
Answer» Correct Answer - D Electron affinity of chorine is maximum. |
|
| 410. |
Order of electron affinity of `F,Cl,Br` and `I` isA. `F lt Cl gt Br gt I`B. `F gt Cl gt Br gt I`C. `F lt Cl lt Br lt I`D. `F gt Cl lt Br gt I` |
|
Answer» Correct Answer - A Electron affinity of Cl is greater than fluorine so the order are as `FltClgtBrgtI`. |
|
| 411. |
What will be the order of first ionisation energy?A. `LigtNagtK`B. `KgtLigtNa`C. `NagtLigtK`D. `LigtKgtNa` |
|
Answer» Correct Answer - A In a group, the ionisation potential decreases from top to bottom. In the alkali group, the ionisation potential decreases from Li to Cs. `{:(,Li,Na,K,Rb,Cs),(eV,5.3,5.1,4.3,4.2,3.9):}` |
|
| 412. |
The first `(Delta_(i)H_(1)` and second `(Delta_(i)H_(2)` ionization enthalpies (in kJ/mol) and electron gain enthalpy (in kJ/mol) of few elements are given below: `{:("Elements",Delta_(i)H_(1),Delta_(i)H_(2),Delta_(eg)H),(I,520,7300,-60),(II,1681,3374,-328),(III,899,1757,+48),(IV,2372,5251,+48):}` Which of the following is likely to be an alkali metal?A. I and VB. V and IIC. II and VD. IV and V |
|
Answer» Correct Answer - C I represents Li II represents K III represents Br IV represents I V represents He So, amongst these, II represents most reactive metal and V represents least reactive non-metal. |
|
| 413. |
Which of the following is arranged in order of increasing densityA. `AlltMgltC_(("graphite"))ltB`B. `BltAlltMgltC_(("graphite"))`C. `C_(("graphite"))ltAlltBltMg`D. `MgltC_(("graphite"))ltBltAl` |
|
Answer» Correct Answer - D Aluminium will have the maximum density in the group. |
|
| 414. |
One of the following is not eukaryoticA. ProtistaB. MoneraC. PlantaeD. Animalia. |
| Answer» Correct Answer - B | |
| 415. |
Statistical methods used in classificationA. NumericalB. AdansonianC. PheneticD. All the above. |
| Answer» Correct Answer - D | |
| 416. |
An enzyme found at the tip of tail of bacteriophages isA. proteaseB. lysozymeC. replicaseD. reverse transcriptase |
| Answer» Correct Answer - B | |
| 417. |
The protein coat of virus is calledA. prionB. capsomereC. capsidD. mantle/envelope |
| Answer» Correct Answer - C | |
| 418. |
Nuclear membrane is absent inA. VolvoxB. NostocC. PenicilliumD. Agaricus |
| Answer» Correct Answer - B | |
| 419. |
Green phytoplankton are kept in which kingdom of five kingdom classification systemA. Kingdom -MoneraB. Kingdom - ProstistaC. Kingdom - PlantaeD. Kingdom-Fungi |
|
Answer» Correct Answer - B Green phytoplanktons are photosynthetic and have chloroplast for carrying out photosynthesis . Since , these are unicellular eukaryotic , organisms , are placed in are unicelluar - Protista , e.g. Chlorella, Chlamydomonas , etc. |
|
| 420. |
In Vedic times living organisms were classified in the following number of classes.A. 2B. 3C. 4D. 5 |
|
Answer» Correct Answer - B In ancient (Vedic) times, the living organisms were classified into three classes and these were (i) Jivaja (born from worm or viviparous) (ii) Andaja (born from egg or oviparous) (iii) Udbhija (born form sprouts) |
|
| 421. |
Which one of the following living organisms completely lacks a cell wallA. Sea Fan (Gorgonia)B. SaccharomycesC. Blue-green algaeD. Cyanobacteria. |
| Answer» Correct Answer - A | |
| 422. |
Which of the following organisms completely lack cell wall, they are the smallest living cells known and can servive without oxygen ?A. MycoplasmaB. EuglenoidsC. Slime mouldsD. All of these |
|
Answer» Correct Answer - A Mycoplasma is the smallest living cell which is devoid of cell wall. |
|
| 423. |
Which is the incorrect statement regarding fungi ?A. Wheat rust causing agent in PucciniaB. Penicillium is a source of antibioticC. The cell wall of fungi are composed of peptidoglycansD. Fungi prefer to grow in warm and humid places |
| Answer» Correct Answer - C | |
| 424. |
Absorptive nutrition isA. Holophytic nutritionB. Saprotrophic nutritionC. Parasitic nutritionD. Both B and C |
| Answer» Correct Answer - D | |
| 425. |
According to five kingdom system, gymnosperms and angiosperms are grouped under the kingdomA. MoneraB. ProtistaC. FungiD. Plantae |
| Answer» Correct Answer - D | |
| 426. |
The fundamental and mathematical basis are an aid to the classification of organisms calledA. TaximetricsB. Numerical taxonomyC. PalynologyD. Taximetrics and numerical taxonomy. |
| Answer» Correct Answer - D | |
| 427. |
Ingestive nutrition isA. HolozoicB. PhagotrophicC. Both A and BD. Holophytic. |
| Answer» Correct Answer - B | |
| 428. |
Number of ecological life styles found in organisms isA. 6B. 5C. 4D. 3 |
| Answer» Correct Answer - D | |
| 429. |
Phytoplankton and zooplankton mostly belong toA. MoneraB. ProtistaC. AnimaliaD. Plantae and Animalia. |
| Answer» Correct Answer - B | |
| 430. |
Viruses haveA. DNA enclosed in a protein coatB. Prokaryotic nucleusC. Single chromosomeD. Both DNA and RNA |
| Answer» Correct Answer - A | |
| 431. |
Which statement is wrong for virusesA. They have ability to synthesize nucleic acids and proteinsB. Antibiotics have no effect on themC. All are parasitesD. All of them have helical symmetry |
| Answer» Correct Answer - D | |
| 432. |
Which of the following is the atomic number of a metal?A. 32B. 34C. 36D. 38 |
|
Answer» Correct Answer - D 38 is the atomic no. of strontium (Sr) which is s-block element and all the elements of s-block are metals. |
|
| 433. |
Which of the following has greatest tendency to lose electron ?A. FB. SC. FeD. Be |
|
Answer» Correct Answer - C Both Fe and Be are metal but Be has stable configuration so it is difficult to release `e^(-)` from it. So it has less metallic character than Fe. |
|
| 434. |
The lightest metal isA. LiB. MgC. CaD. Na |
|
Answer» Correct Answer - A Li because of its smallest size. |
|
| 435. |
In which block `106^(th)` element belongsA. s-blockB. p-blockC. d-blockD. f-block |
|
Answer» Correct Answer - C Element belongs to d-block is unnilhexium `(Unh)_(106)`. |
|
| 436. |
An element with atomic number 29 belongs toA. s-blockB. p-blockC. d-blockD. f-block |
|
Answer» Correct Answer - C `Cu_(29)-[Ar]3d^(10)4s^(1)`. |
|
| 437. |
The most common lanthanoid is :A. LanthanumB. CeriumC. SamariumD. Plutonium |
|
Answer» Correct Answer - B The most common lanthanide is cerium. |
|
| 438. |
Which of the following denegative anion is quite common?A. `S^(2-)`B. `Se^(2-)`C. `Te^(2-)`D. `O^(2-)` |
|
Answer» Correct Answer - D Due to its vacant p-orbital. |
|
| 439. |
the maximum valency of an element with atomic number `7` isA. 2B. 5C. 4D. 3 |
|
Answer» Correct Answer - B Valency is according to valence shell configuration which here is `1s^(2),2s^(2),2p^(3),i.e.,5`. |
|
| 440. |
Amongst the following statements which is/are correctA. The second ionization potential of boron is greater than that of carbonB. First ionization potential of boron is greater than that of carbonC. The second I.P. of Mg is greater than that of PD. First I.P. of Al and Ga are almost the same |
|
Answer» Correct Answer - A::D Removal of an electron from `B^(+)(1s^(2)2s^(2))`, requires reater energy than from `C^(+)(1s^(2)2s^(2)2p^(1))` |
|
| 441. |
Among the following which has the highest cation to anion size ratio ?A. CsIB. CsFC. LiFD. NaF |
|
Answer» Correct Answer - B `Cs^(+)gtLi^(+)rarr` atomic radii `I^(-)gtF^(-) rarr` atomic radii `therefore` CsF has highest cation to anion size ratio. |
|
| 442. |
Identify the wrong statement in the following ?A. Amongst isoelectronic species, smaller the positive charge on the cation, smaller is the ionic radiusB. Amongst isoelectronic species, greater the negative charge on the anion, larger is the ionic radiusC. Atomic radius of the elements increases as one moves down the first group of the periodic tableD. Atomic radius of the elements decreases as one moves across from left to right in the `2^(nd)` period of the periodic table |
|
Answer» Correct Answer - A As the positive charge increases on metal cation, radius decreases. |
|
| 443. |
Which has the maximum atomic radius?A. AlB. SiC. PD. Mg |
|
Answer» Correct Answer - D Mg, as we move across the period atomic radius decreases. |
|
| 444. |
The radii of `F,F^(-),O` and `O^(-2)` are in the order ofA. `O^(2-)gtF^(-)gtOgtF`B. `O^(2-)gtF^(-)gtFgtO`C. `F^(-)gtO^(2-)gtFgtO`D. `O^(2-)gtOgtF^(-)gtF` |
|
Answer» Correct Answer - A Atomic radius decreases on going from left to right in a period. Thus size of `OgtF`. As `O^(2-)` and `F^(-)` are isoelectronic, therefore, size of `O^(2-)gtF^(-)`. |
|
| 445. |
Which one of the following is the strongest base ?A. `AsH_(3)`B. `NH_(3)`C. `PH_(3)`D. `SbH_(3)` |
|
Answer» Correct Answer - B Nitrogen, being smallest in size, can give up its lone pair of electrons most easily. |
|
| 446. |
Of the following the ion with the smallest ionic radius isA. `K^(+)`B. `Ca^(2+)`C. `Ti^(3+)`D. `Ti^(4+)` |
|
Answer» Correct Answer - D On moving from left to right in a period, value of radius decreases. |
|
| 447. |
Which one of the following is the smallest in size?A. `N^(3-)`B. `O^(2-)`C. `F^(-)`D. `Na^(+)` |
|
Answer» Correct Answer - D Number of electrons are same in all but nuclear charge is maximum in `Na^(+)`. Hence it is the smallest. |
|
| 448. |
Which of the following ion is the smallest ionA. `O_(2)^(+)`B. `O_(2)^(-)`C. `O_(2)`D. `O_(2)^(-2)` |
|
Answer» Correct Answer - A Cation has small size than parent atom and anion has greater size than parent atom. |
|
| 449. |
Which has the highest melting point?A. LiClB. `BeCl_(2)`C. `BCl_(3)`D. `C Cl_(4)` |
|
Answer» Correct Answer - B `BeCl_(2)` has the highest melting point due to ionic bond. |
|
| 450. |
Chalcogen are elements of the groupA. `17^(th)`B. `15^(th)`C. `16^(th)`D. `14^(th)` |
| Answer» Correct Answer - C | |