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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.
| 44551. |
Double fertilization and triple fusion |
| Answer» triple fusion..the fusion involving two polar nuclei and a sperm nucleus that occurs in doble fertilisation in a seed plant and results in formation of endosperms. | |
| 44552. |
What are seminal vessels |
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Answer» Thanx yash & akansha both of you position* you have mentioned about the pisition only The seminal vesicles vesicular glands or seminal glands are a pair of simple tubular glands posteroinferior to the urinary bladder of some male mammals. Seminal vesicles are located within the pelvis. fluid and nutrients combine with sperm to form semen . Milky , viscous fluid contains fructose and protiens and other chemicals for nourishinv and stimulating sperms. |
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| 44553. |
What happens when a mature spirogyra |
| Answer» when a spirogyra matures then it detaches from the parent body and form a separate structure | |
| 44554. |
What is the direction of magnetic field lines inside a bar magnet and outside of it |
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Answer» Outside the bar magnet field lines are north pole to south pole while inside the bar magnet field lines are south pole to north pole. North to south pole north pole to south pole |
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| 44555. |
How are the areas of study - evolution and classification - interlinked? |
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| 44556. |
In a flowering plant,summarize the events that take place after fertilization |
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Answer» Fine dear Event that occurs after fertilizationSepal , petals and stamens wither and fall off..Pistal= remain attached to plantzygote= develop into embryo and the ovales develop into seedOvary=develop into fruits..... |
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| 44557. |
what is dialysis? explain it |
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Answer» dialysis is the process of removing excess water, solutes, and toxins from the blood in people whose kidneys can no longer perform these functions naturally. This is referred to as renal replacement therapy..... Artifical purification |
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| 44558. |
Why magnisium ribbon burns in air |
| Answer» Question artha hai | |
| 44559. |
What is the useu of concave & convax mirror? |
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Answer» Concave mirror is used for shaving and also used by dentists and also used in headlights of the car where is convex mirror is used for rear view and in a torch etc....... Concave in furnace and convex in vehicle mirror |
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| 44560. |
Reflection of refraction of light power of lean |
| Answer» Write correct and complete question.......otherwise it will be remained unanswered...... | |
| 44561. |
Define metallurgy. |
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Answer» chetna it is too good that..you given most of the answer here...keep it up? The process of extraction of metal from its Ore is known as metallurgy...... |
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| 44562. |
Michoul Feraday law of electo motor magnetic induction |
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| 44563. |
I am not able to understand law of independent assortment\'s statement? |
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| 44564. |
Do we have to balance equations if not stated? |
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Answer» Yes because it is necessary to satisfy the law of conservation of mass and if you don\'t balance the chemical equation then teacher can deduct your marks Yes |
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| 44565. |
Different b/w AC & DC |
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| 44566. |
Principal & working of electric motor & DC generator |
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| 44567. |
Which topics are important |
| Answer» All | |
| 44568. |
Describe the Darwin \'s theory of evolution in details and points? |
| Answer» Following are the points of Darwin’s theory of natural selection:Over-production: Every organism has enormous potential to reproduce.Struggle for existence: Population size of an organism is limited due to struggle between the members of same species as well as the members of different species. It is due to struggle for food, space and mate.Variation: Due to struggle, the fit organisms possess some variations which are favourable, and they can leave the progeny to continue the favourable variations.Survival of the fittest: The fittest organism survive to continue the favourable variations.Formation of a new species: These variations when accumulated for a long time, leads to the origin of a new species. | |
| 44569. |
Which is the most active metal in 3rd period? |
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Answer» Sodium. Na. Sodium Na |
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| 44570. |
what is the defnition of strong base and weak base |
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Answer» He\'s ryt When mixed in water and produces more no. Of OH - ion then it is strong base and if less no. of OH-ion then weak base. |
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| 44571. |
What is disperson of light white light is made up from how many colors explain |
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Answer» Scattering of light in a band of seven colour while passing through a glass prism is called dispersion of light. White light is made up of seven colour, Violet,Indigo,Blue, Greens, Yellow,Orange,Red. You can remember it by VIBGYOR. Splitting of white light into seven constituent of colors is known as dispersion of light...... It is made of seven colours... i.e. (vibgyor) The spliting of light into its component of colurs os called dispersion as in glass prism |
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| 44572. |
Doffended B/w humen eye and bhotgraph canna |
| Answer» A camera sees in 2 dimensions while the eye sees in 3 dimensions. While changing the focus the retina and parts of the pupil adjust the size accordingly. However, in a camera the focus is changed by the movement of the lens. Eye has a blind spot which is also known as scotoma, whereas, the cameras do not have any such limitations.............. | |
| 44573. |
What do you mean by rock salt? |
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Answer» She\'s ryt Salt that are obtained from the rocks in form of crystals are called........... |
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| 44574. |
Defect in human eye mypio & hypermetropia |
| Answer» Door nhi dikhe aur paas dikhe mtlb myopia aur paas na dikhe aur door dikhe mtlb hyp. Yahan pr paas or dooor thik se ya clearly nhi dikhne ka baat ho rha hain ekdum naa dikhne ka nhi | |
| 44575. |
What do you mean by execration |
| Answer» The process of removal of toxic substances and metabolic wastes, from the body of living organisms............ | |
| 44576. |
What do star twinkle |
| Answer» Becoz of the atmospheric refraction...... as stars are far away from earth they appear as the point source of light...... when the path of rays of light coming from the star goes on varying slightly, the Apparent position of the star fluctuates and the amount of star light entering the eye flickers-the star sometimes appears brighter, and at sometime fainter,which is the twinkling effect............. | |
| 44577. |
what is the atomic no. of sodium |
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Answer» 11 Purana dialogue yad kr lo....? Thanx both of u 11..... 11 |
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| 44578. |
Substitution reaction |
| Answer» The reaction in which one or more hydrogen atoms of a hydrocarbon are replaced by some other atoms are called as substitution reaction......... | |
| 44579. |
Guys how is your prepration for science exam ??? |
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Answer» Exam mae to sab kush karta hae lakin teacher marks nahi deta pata nahi Its going on going and going......bt no idea that where it will stop???, wbu |
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| 44580. |
Define a solenoid. How is it different from a coil ? |
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Answer» A coil of many circular turns of insulated copper wire in shape of a cylinder is solenoid Solenoid is a long coil wounded by copper wire which acts as a magnet when current is passed through it...... there is no difference between coil and solenoid..... becoz solenoid itself is a coil....... |
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| 44581. |
Write the definition of esterification,supanification |
| Answer» Esterification- reaction to produce ester by reaction of an alcohol wid carboxylic acid in presence of acid catalystSaponification- reaction to produce soap and alcohol by treating ester with NaOH | |
| 44582. |
What are iromess write the iromes of butane? |
| Answer» Compounds having same molecular formula but diff. Structure is known oa isomers | |
| 44583. |
Different b/w soap,Ditergent,graphite,diamond,saturetted,unsaturetted? |
| Answer» \tSoap is a triacylglyceride derviative (fat) while detergents are often produced synthetically.\tThe head-group of soap a molecule is usually a carboxylate anion while common detergents often use phosphate or sulfate head-groups (ie Sodium dodecyl sulfate).\tSoap\'s effectiveness is greatly affected by the presence of certain minerals in solution such as those typically associated with hard water. Detergents are usually not affected by minerals in solution.\xa0\tSoaps are the sodium salts of long chain carboxylic acids\tDetergents are sodium salts of long chain benzene sulphonic acids\tSoaps are biodegradable while some of the detergents are non-biodegradable.\tSoaps have relatively weak cleansing action whereas; detergents have a strong cleansing action.\tA detergent is a sodium salt of alkyl benzene sulphonate or of a fatty alcohol sulphate. A soap is a sodium or potassium salt of higher fatty acids.\tA detergent is more effective in hard water. Soaps are less effective in hard water. | |
| 44584. |
Explain electrolysis of water. |
| Answer» Breaking down of water molecule by passing electric current | |
| 44585. |
Draw the electronic dot structure (I) cyclopentane (II) co2 |
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Answer» Cyclopentane has a quite complicated structure. 10 H atoms combine with 5 C atoms, giving us the formula of Cyclopentane as C5H10. Here is its electron dot structure :-The electron dot structure of carbon dioxide (CO2). How can I tell yu here |
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| 44586. |
Write the cleaning action of soap and detergent |
| Answer» A soap contains to parts one is the hydrocarbons part And another is the ionic part. The HC part is hydrophobic in nature (water repelling) and the ionic part is hydrophillic in nature(water attracting) . The hydrocarbons part mix with the oil and dirt and the ionic part wants to remain on the surface of the water. In this way a cluster is formed with the HC part attached with the dirt and polar end on the surface of water forming a micelles. These colloidal particles don\'t settle down because of the nonioninc repulsion and remains suspended. Hence when the clothes and are rinsed in soap water or beaten with stone or scrubbed with brush these particles come to the water and hence the clothes get cleaned. | |
| 44587. |
express photosynthesisIn the form of chemical equation and state it\'s three events |
| Answer» 6 co2 +6 h2o gives- C6H12O6 + 602 | |
| 44588. |
What are the functional group ? |
| Answer» A Group of atoms responsabile for the characteristic reactions of a particular compound... | |
| 44589. |
What are the two properties of carbon? |
| Answer» Catenation and tetravalency | |
| 44590. |
Why is 22 carat gold is used in making jewelry |
| Answer» \tPure gold, known as 24 carat gold is very soft . It\xa0is not suitable for making jewellery.\tSo they use 22 carat gold in which pure gold is alloyed with 2 parts of either silver or copper for making gold jewellery. | |
| 44591. |
How is ionic compound form from sodium & chlorinc? |
| Answer» Plz, write yur question clearly....... | |
| 44592. |
Describe metal properties malleability, ductility, conductivity? |
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Answer» Melleability means tha metals ka melleable and the are turn into thin sheet when the are beaten by hammer Malleability means can be beaten into sheets.ductility means can ne drawn into wires. Conductivity means which allow heat and electricity to pass through them.... Malleability- A substance of material which can beaten in thin sheet it is called malleabilityDuctility-a material which can be draw onto wires it is called ductilityElectrical conductivityThermal conductivity |
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| 44593. |
Different b/w covelent & ionic compound? |
| Answer» Covalent compounds are formed by sharing of electrons ie between non metals whereas ionic are formed due to transfer of electrons between metal and non metal | |
| 44594. |
Give reason ionic compound have high melting point? |
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Answer» Force of attraction between these molecules are not very strong Because of very strong electrosatic force of attraction it is difficult to separate them Because of strong force of attraction between opposite charges of ionic compound |
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| 44595. |
Sodium is kept immersed in kerosene oil? |
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Answer» Because sodium reacts violently with air and forms oxide and catches fire Coz it reacts vigorously with oxygen and water |
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| 44596. |
State the ways of increasing the strength of magnetic field inside a solenoid |
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Answer» The three methods by which we can increase the strength of magnetic field are given below:\tBy increasing the number of turns of wire in the solenoid.\tBy increasing the current flowing through the solenoid.\tInserting a soft iron core in the solenoid. Increase current, more coil around soft iron core, use more strength magnetic By increasing number of turnsBy increasing magnitude of currentBy using soft iron for core of solenoid |
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| 44597. |
Why do maximum people use condoms during sexual intercourse |
| Answer» To prevent unwanted pregnancy, prevent sexually transmitted diseases | |
| 44598. |
why slaked lime is used for white washing |
| Answer» Solution used to white wash the walls is Quick lime(CaO) and when it is mixed with slaked lime [Ca(OH)2]. When this paste is used for white washing it combines with atmospheric CO2 to form calcium carbonate (CaCO3) which gives it a shiny texture.\xa0 | |
| 44599. |
Describe the formation of fruits and seeds. |
| Answer» After fertilisation has taken place in flower, a zygote is formed which divides several times to form an embryo within the ovule. The ovule develops a tough protective coat around itself and is gradually converted into a seed. The ovary grows rapidly and ripens to form a fruit. Meanwhile, the petals, sepals, stamens, style and stigma gets shriveled and fall off. | |
| 44600. |
Carbon2hydrogen4 |
| Answer» | |