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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.
| 4901. |
which bacteria are needed for theIhstalktion of nitrogen? |
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Answer» microorganisms capable of transforming atmospheric nitrogen intofixed nitrogen(inorganiccompoundsusable by plants). More than 90 percent of allnitrogen fixationis effected by these organisms, which thus play an important role in thenitrogen cycleTwo kinds of nitrogen-fixingbacteriaare recognized. The first kind, the free-living (nonsymbiotic) bacteria, includes thecyanobacteria(or blue-green algae)AnabaenaandNostocand genera such asAzotobacter,Beijerinckia, andClostridium. The second kindcomprisesthe mutualistic (symbiotic) bacteria; examples includeRhizobium, associated with leguminous plants (e.g., various members of thepea family);Frankia, associated with certain dicotyledonous species (actinorhizal plants); and certainAzospirillumspecies, associated with cereal grasses. |
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| 4902. |
(b) During a free fall, will heavier objects accelerate more than lighter ones ? |
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| 4903. |
7The number of significant figures in all the given numbers2512 2009, 4.156 and 1217 10 is2) 1(b) 2(c) 3(d) 4 |
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Answer» option d is the correct answer. all have 4 significant figures. |
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| 4904. |
(a) Define gram molecular mass or a substance, now much is ue giant mo ecua massor。лу genIf sulphur exists as Sg molecules, calculate the number of moles in 100 g of sulphur. (S-32 u. |
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| 4905. |
Which of the following is true regarding dimagneticsubstances (symbols have their usual meaning)<I |
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Answer» Diamagnetic materials, like water, or water-based materials, have a relative magnetic permeability that is less than or equal to 1, and therefore amagnetic susceptibilityless than or equal to 0, since susceptibility is defined asχv= μv− 1 option C |
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| 4906. |
129A body is at rest on the surface of the earth. Whichone among the following statements is correctregarding this?clout |
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Answer» Net downward force is equal to the net upward force |
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| 4907. |
Answethe two main portions of a plant.R |
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Answer» Two main parts of a plant are root and shoot(stem) |
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| 4908. |
1. Name the two main systems of a plant. |
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| 4909. |
Why does a phuljhari (sparking light) require some heating before it sparks? |
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Answer» Phuljhari requires some heating before it sparks to attain its ignition temperature. |
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| 4910. |
kutte ke katne se Kon SA Rog hota hai |
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Answer» kutte ke katne se "RABIES" rog hota hai |
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| 4911. |
Vite Trie ot ais hStatementsTrue/False1. Cooking of rice is a physical change2. Rusting of iron takes place in the presence of moist air3. Magnesium oxide reacts with water to form magnesiumhydroxide which is acidic in character4. When bread goes stale, a physical change lakes place5. A reddish deposit formed on an iron nail, when placed in a coppersulphate solution is of copper metal.6. The gas produced when washing soda reacts with dilute sulphuricacid is carbon monoxide7, Limewater is solution of calcium carbonale in water8. Crystallization is used to obtain pure crystals from impure crystals69 |
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Answer» 1) True.cooking of rice changes its State.2) true. iron oxides are formed by utilising moisture in air3) false. magnesium Hydroxide is basic in character4) false when bread goes stale a chemical change takes place5) True. it is a displacement reaction were copper metal deposits itself on the nail 6) False. the gas produced when washing soda reacts with dilute sulphuric acid is carbon dioxide7) false. lime water is a diluted form of calcium hydroxide.8)True |
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| 4912. |
4.What is crystallisation? How can you getcrystals of sugar from its solution? |
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Answer» Crystallization is a process of formation of solid crystals precipitatingfrom a solution through a natural or an artificial method. It is also achemical solid–liquid separation technique, through mass transfer of asolute from the liquid solution to crystalline phase in the form of asolid matter. |
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| 4913. |
khajoor ka english kya hota h |
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Answer» dates or date palm. |
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| 4914. |
ghanatva Ka matrak Hota Hai |
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Answer» Ghanatva ka matrak kilogram per cubic metre (kg/m3)hai |
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| 4915. |
2. king of the chemicalsO sulphuric acidO hydrochloric acidO citric acid |
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Answer» citri acid is right answer sulphuric acid is the king of chemicals hydro chloric acid is the king of the chemical sulphuric acid is the koing of chemical hydrochloric acid right answer sulphuric acid is a king of chamical Hydrochloric acid is the king of chemical king of the chemicals citric acid kingh of the chemical =sulphuric acid citric acid king chemostry H2s04 Sulphuric acid hydrochloric acid is a right answer sulphuric acid is king of the chemicals sulphuric acid is the answer sulphuric acid right answer h2so4 answer is sulphuric acid sulphuric acid is the king of acid sulphuric acid is the king of chemicals h2s04 Sulphuric acid Sulphuric acid H2so4It is the king of the chemical. hydrochloric acid is the king of chemical. Sulphuric acid is the my answer sulphur acid is the king of acids ᴋɪɴɢ ᴏꜰ ᴛʜᴇ ᴀᴄɪᴅ =ꜱᴜʟᴩʜᴜʀɪᴄ ᴀᴄɪᴅ Hydrochloric acid is the king of acids sulphuric acid sometimes refer to as the king of chemical because it is produced king of acid is sulphuric acid sulphuric acid is a king of chimicals sulphuric acid is the king of the chemicals king of the chemical sulfuric acid hydrochloric acid is right answer sulphuric acid is king of chemicals. sulphuric acid hoga iska answer hydrochloric acid is king of the chemicals king of the chemicals in sulphuric acid option (A) sulphuric acid known as king of the chemicals sulphuric acid right h sulphuric Acid is best in these acids sulphuric acid is the king of the all chemicals hydrochloric acid is the king of chemical hydrochloric acid is a king of the chemical hydrochloric acid is 👉 answer sulphuric acid (H2So4) hydro chloric acid is the king of chemical sulphuric acid hoga iska answer sulphuric acid is the right a swer his ansawar is sulphuric acid "sulfuric acid" is king of the chemical. this qno ans is citric acid king of the chemical sulphuric acid H2SO4 hydrochloric acid hcl King of the Chemicals is sulphuric acid And finally my answer is sulphuric acid My option is 1 sulphuric acid is right answer hydrochloric acid HCL citric acid is the right answer Sulphuric acid is the king of chemicals. The formula of sulphuric acid is H2SO4. hydrochloride acid right answer right answer Sulphuric acid sulphuric acid is correct sulphuric acid is called king of the chemicals citric acid is right answer sulpheric acid is the king of king of chemicals sulphuric acid is the king of chemical sulphuric acid is the king of chemicals sulphuric acid is the king of acids king of the chemicals is hydrochloric acid. Asulphuric acid is also called King of chemicals. the chemical formula of sulphuric acid is H2SO4 sulphuric acid is a right answer of this question Sulphuric acid is the king of chemical The right answer for this question is sulphuric acid sulphuric acid is King of the chemicals king of the chemical citric acid right answer The king of chemicals is sulphuric acid. Option ASulphuric acid is the king of chemicals answer this question 1 sulphuric acid is correct answer king of the chemicals hcl sulphuric acid by Harsh Sharma This question answer is sulphuric acid sulphuric acid (H2SO4) sulphuric acid is king of chemical c citric acid theek hai hi sahi hai bhai sulphuric acid King of chemical the king of acid is hydrochloric acid king of chemicals are sulphuric acid sulphuric acid king of the chemicals Sulphuric acidIs king of chemicals sulphuric acidit is a right answer sulphuric acid is the king of the chemical sulphuric acid is king of acid Sulfuric acid is the king of chemicals |
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| 4916. |
LemonAnt stingNettle stingCitric acMethandMethanoTamarindTartaric acidTomatoOxalic acidQUE S TI ON SYou have two solutions. A and B. The pH of solution A is 6 and plH ofsolution BIs8. Which solution has more hydrogen ion concentration?Which of this is acidic and which one is basic? |
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| 4917. |
bharat ke kis rajy me jyada jansika hai |
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Answer» jansankhya ki dristi se uttar pradesh |
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| 4918. |
The energy of an electron in the first Bohr orbit for hydrogen is -13.6 eV. Which one of thefollowing is a possible excited state for electron in Bohr orbit of hydrogen atom?a) -3.4 eVb)-6.8 eVc) -1.7eVd) 13.6eVdto ho sunnlied to H-atom to nush its electron |
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Answer» If E is the total energy of an electron revolving in an orbit then Potential Energy = 2EKinetic Energy = -ESo to your question , if total energy is -13.6 eV then the kinetic energy will be -(-13.6) eV which equals 13.6 eV |
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| 4919. |
(a) Total path length (b)NUMERICAL QUESTIONSA particle moves in a semi-circular part of radius 7 m. Calculate the distance traand displacement of the particle when It completes a semi-circular path.velled |
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Answer» Distance travelled will be along the circumference = πR = 22*7/7 = 22m and displacement will be along the diameter = 2R = 14m |
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| 4920. |
Describe prokaryotic cell witha neat, well labelled and suitablediagram. |
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Answer» Prokaryotic cells are cells that do not have a true nucleus or most other cell organelles. Organisms that have prokaryotic cells are unicellular and called prokaryotes. Bacteria and archaea are prokaryotes. Prokaryotic cells can be contrasted with eukaryotic cells, which are more complex. Eukaryotic cells have a nucleus surrounded by anuclear membraneand also have other organelles that perform specific functions in the cell. |
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| 4921. |
2.How is a camel adapted to survive in the desert? |
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| 4922. |
Q.1. Explain structure of Prokaryotic cell and Eukaryotic cell with the help of Diagram. |
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Answer» prokaryotic cell - the organisms which have cells without definite nucleus . example - bacteria , fungi . Eukaryotic cell - the organism which have cells with definite nucleus .example - animals , plants . Select mine as the best answer. |
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| 4923. |
ar amuasthuck fur wsich helps them to stay aurmantmals go for a wnter sleep to protect themselces against the coldl that live in waler are called uquaticasinalslint permunteruly in unter They are ieril adapted taqualc lifelbs spend ther Iihtes partitye urty on landminal that ly in the aur ave callni uerial animalsin the aur uve calintee-tweling anmmals ave called arhoreal amalss per food laabts, aswer the following questionsIlow are animals grouped acconding to their habitats?Dexribe the adaplabons of a fish for aquite lstDescribe the Righl adaptations of a bird.Descnbe the adaptations of a trog tor life on land and in waterWhat ane the ditferent groups of animals according to therr feediHow does a chameleon protexct iise If from sts eneiesThe trog is an amphiban How is it adapted to live on land andHow are ammals of polar regions adapted to their environmentCamels go on without water for many daysCamels can walk on sand with easeFish have fins and gillsSome animals hibermateDolphins and whales have flippersSome monkeys have prehensile tail |
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Answer» 2)Fish have adapted to their environment through the evolution of gills, swim bladders andfins. Gills allow fish to absorb oxygen from the water, swim bladders allow fish to maintain an appropriate level of buoyancy andfinsallow the fish to move through the water kindly crop the question you need to ask and then upload it tel me this Q ..... which water do you consider safe for drinking which adaptation should you have to enable you to live permanently in the polar region?why? Even though coconut is large and heavy, it contains an outer fibrous coat which has the ability to float on water. It can drift in water bodies to different locations for a long period of time. The thick external husk protects the seed from animals, and unfavourable environmental conditions. |
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| 4924. |
why do fishes open and close their mouth so frequently when swimming in water |
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Answer» They are breathing through their mouths. Fish require a steady flow of water through their gills to be able to extract oxygen from it; the easiest way to make the water flow is to suck it in through their mouths and squeeze it out past their gills. thanks didi 😄😄 |
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| 4925. |
5. Which of the two changes frequently, weather or climate |
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Answer» It's weather which changes frequently |
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| 4926. |
Four identical spheres each of radius 10 cmand mass 1 kg each are placed on a horizontalsurface touching one another so that theircentres are located at the corners of squareof side 20 cm.What is the distance of their centre of massfrom centre of either sphere?(1) 5 cm(3) 20 cm(2) 10 cnm(4) 102 cm |
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| 4927. |
DJ 1240 +IJUE)Add the following.[6 + (-2)] + (-7)[(-4) + (-3)] + 4-btract the followi |
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Answer» [ 6 + ( - 2 ) ] + ( - 7 )( 6 - 2 ) + ( - 7 ) 4 + ( - 7 ) 4 - 7 - 3 [ ( - 4 ) + (- 3 ) ] + 4 ( - 4 - 3 ) + 4 -7 + 4 - 3 |
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| 4928. |
Example1.57.50.0kgofN,(g)and10.0kgofH2)aremixed to produce NH (). Calculate the NH (g) formed. Identifythe limiting reagent in the production of NH3 in this situation. |
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| 4929. |
Find out about national parks in your state. Identify and show their locationon the outline map of India9. |
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Answer» Eravikulam national park thank you mam and sir |
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| 4930. |
Write down the steps to print a document. |
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Answer» Word 2007 Close all Word 2007documents. Click the Microsoft Office Button, and then click New. Under Blank and recent, click. Blankdocument, and then click. Create. Type some text in the newdocument. Click the Microsoft Office Button, point toPrint, and then clickPrint. In thePrintdialog box, click. OK. |
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| 4931. |
20.Which material are mostly used for making electro magnet?a) Silicon steelc) Alnico alloy steelb) Tungsten steeld) Cast iron |
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Answer» For an electromagnet, you need a core material with low remnance. That is, when you remove the magnetomotive force (current in the coil) the core will (mostly) demagnetise and let the load or armature go. Iron or silicon steel has this property. Other steel alloys do not necessarily have this property. They have a high remnance which means they remain highly magnetised even wjen the mmf is removed. This is an undesirable property for an electromagnet. |
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| 4932. |
in any website8. एक वेब पेज जो किसी वेबसाइट को खोलने पपहले खुलता है, को..............कहा जाता है(A) हाउस पेज (House Page)(B) होम पेज (Home Page)(C) पीडीए (PDA)(D) वायरस (Virus) |
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Answer» option B is rightit called home page option B is rightit called home page B option is correct is home page Options (B) Home page is the right answer of the following correct answer is options B ( home page) home page is the correct answer B, option is correct answer b,option is correct answer ans:(B) होम पेज (Home Page) option b is the right answer home page is the right answer Page,which opens before opening the website is known as home page. Home page is the correct answer..... This is called home page Ansar b is right answer |
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| 4933. |
shbl and ine |
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Answer» An exhaustible resource is a term that has come to be associated with an ore such as coal, oil or platinum which does not renew itself rapidly in its natural setting. Any resource can be exhausted and most resources are being renewed but for exhaustible resources, the speed of replenishment is very slow.Examples of exhaustible natural resources are fossil fuels such as oil, coal,An inexhaustible resource is a resource that never runs out or gets depleted. Some of such resources include wind, sun, solar energy, tides, and geothermal energy. They are mostly the natural occurring resources hence they reappear naturally.Examples of these resources are geothermal energy, air and solar radiation |
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| 4934. |
31. In pome fruit species, short shoots arenamed 'Dards' when they area) Strictly vegetativeb) Strictly floralc) Usually vegetatived) Usually floral |
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Answer» a) strictly vegetativeIn pome fruit species, the short preformed shoots are called 'dards' when they are vegetative or 'spurs' when they bear also flowers |
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| 4935. |
5. Ankit was learning how to cook. His father strictly told him not to wear nylon dokitchen. Why?Father strictly told him not to wear nylon clothes in the |
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| 4936. |
3. These days clothes made out of a mixture of synthetic fibres and natural fibres are morepopular than those made purely out of synthetic fibres. Discuss the reasons for this. |
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Answer» Synthetic fibre &natural fibre are more polular because of its prkperties like strenght,elasticity and ease of washing and ironing |
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| 4937. |
Paran toB at a distance of 3.5 Cimraw a line I and draw another line m parallel to l at a distance of 4.3 cm from i |
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| 4938. |
Name two food items that are rich in (a) iron (b) calcium. |
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Answer» a)Beans and lentils. b)Yogurt and Cheese day and then you are not sure that an account registration number Beans andLentilsYogut and cheese |
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| 4939. |
Exercise1. Why do organisms |
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Answer» Organisms need to take foodbecauseorganisms needenergy to perform any activity or function and they get energy fromfood. Thats why theyneed to take food. ... becauseorganisms needcarbohydrate, vitamins, and minerals and other nutrients to gain energy and proteins to live and to continue metabolism. |
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| 4940. |
BURUP SUU(Affiliated to CBSE New Delhi) -Jaganpura, Chainpur, PatnaSESSION 2019-2020 1 P.T-IV, WINTER HOLIDAY ASSIGNMENT CLASSMatch the following1. Scarcity of water.2. Bullet fired from a gun.3. Barrier to hold back water.4. Movements of guitar strings.5. Water borne diseases.6. Motion of earth around sun.7. Purest form of water.8. Rotation of moon.9. Conservation of water.10. Motion of a butterfly.a. Rainwater harvesting.b. Vibratory motion.c. Drought. 1d. Curvilinear motione. Damf. Circular motion.g. Typhoid.h. Random motion.1. Rainwater.j. Periodic motion. |
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Answer» security of water. 2. Scarcity of water c drought 1 c, 4 b, 9 a, 7 i, 5 g, 10 h, 6 d, Water borne diseases का answer Rain water scarcity of water c drought purest form of water is rain water water borne disease typhoid 9. conversation of water. a. rain water harvesting 3.barrier to hold water.e. dam security of water.2. I don't know if you have any questions 1-c2-d3-e4-b5-g6-f7-i8-j9-a10-h 1=c2=d3=e4=b5=g6=f7=i8=j9=a10=h 1-c 2 - d 3-e 4-b 5-g 6-j 7-i 8-f 9-a 10-h 1=c2=d3=e4=b5=g6=f7=i8=j9=a10=h is the right answer 7. Rainwater9. Rainwater harvesting10. Random Motion6. Circular motion5. Typhoid 1c ,2b ,3e, 4a,8f,9g water borne disease typhoid. Security of water. 2. 3.e.,4.b.,5.g.,6.f.,7.i.,9.a.,10.h. security of water. 2.is the answer |
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| 4941. |
Give two examples of omnivorous animals |
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Answer» squirrels,raccoons,chipmunks, mice, and rats, humans and chimpanzees, are also omnivores. beer ,human ,chenpangess ,rat ect |
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