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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.
| 68651. |
Why did the colour of sky is blue |
| Answer» Violet and indigo colour get scatter and blue colour start scattering ,fall in our eye so clear sky look like blue . | |
| 68652. |
Name a cyclic unsaturated carbon compound |
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Answer» Benzene Benzene Benzene Benzene Benzene |
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| 68653. |
Balance the chemical equationFe+H20 == fe304+h2 |
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Answer» 3Fe +4h2o=Fe3o4+4h2 3Fe+ 4H2O → Fe3O4 +4H2 prolong 3Fe+4H2O===Fe3O4+4H2 3Fe+4H2O=Fe3O4+4H2 |
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| 68654. |
Why sodiam metal kept in kerosene |
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Answer» Metals like SODIUM and POTASSIUM are highly REACTIVE in nature. So, when left open in air, it reacts so vigorously that it may even catch fire. So, to prevent accidental fires and emergencies, it is kept immersed in KEROSENE oil. It catches fire in open air, so it is kept in kerosene oil Sodium is highly reactive metal.It reacts vigrously when kept in open and catches fire.So it is kept in kerosene. As per your query,, Sodium is a very reactive metal .if kept in air it can catch fire by react ing with oxygen present in air ..and by immersing in kerosene it would prevent from reaction .Thank you . Sodium is a very highly reactive metal that acts vigorously with oxygen, carbon dioxide and moisture which may even catch fire. So, to prevent this explosive reaction Sodium metal is immersed in Kerosene because it do not react with Kerosene.Hope this helps you!..... |
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| 68655. |
How can genetic inheritance determine ***? |
| Answer» By looking the character of the person | |
| 68656. |
What is the effect of dna copying which is not perfectly accurate on the reproduction processes? |
| Answer» The DNA copying which is not perfectly accurate\xa0in the\xa0reproduction process\xa0results in variations in populations for the survival of species. If the variation are more drastic then the\xa0DNA\xa0will\xa0not\xa0be able to function properly leading to the death of the cell. | |
| 68657. |
What is Newland\'s low |
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Answer» C When the elements are arranged in increasing atomic masses then the properties of the eighth element is equal to the property of the first element. When the elements are arranged in increasing atomic masses then the properties of the eighthelement is equal to the property of the first element. It states that the every 8th element in increasing order of their atomic masses has the similar chemical properties to that of 1st element.Example:- Lithium(li) and sodium (na). The\xa0law of octaves\xa0states that every eighth element has similar properties when the elements are arranged in the increasing order of their atomic masses. |
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| 68658. |
do dry bases (non-alkaline) conduct electricity? |
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Answer» No No, they do not conduct electricity because they do not break up into into ions as they are not soluble in water..Thanks |
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| 68659. |
The decomposer in an ecosystem |
| Answer» Bacteria and fungi | |
| 68660. |
Why carbon show versatile nature ? |
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Answer» 1) Catenation.2) Multiple bond formation.3) Isomerism.4) Tetravalency. It is because it can form single ,double,triple bond and it also forms chains,rings when connected to other carbon atom |
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| 68661. |
What are nucleotides ? |
| Answer» | |
| 68662. |
Name the components of blood that help in the formation of blood clot in the event of a cut? |
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Answer» Platelet: is the component of blood that help in the formation of blood clot in the event of a cut Platelet Platelet cells. Platelets |
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| 68663. |
Write about sign convention in Electricity |
| Answer» I think it is the property that shows us in which direction the current is flowing. | |
| 68664. |
From which letter Magnetic field is represented |
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Answer» \'B\' Letter \'B\' |
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| 68665. |
What is meant by catanation. |
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Answer» Carbon atoms possess the unique ability to combine with other atoms of the same element to form single long chains of different shapes, lengths and sizes. The unique electronic configuration and small size of a carbon atom makes the C-C bonds the strongest. The process of self linking of carbon known as catenation Thanks Property of making long chain by direct bonding in same element.For ex- Carbon, Silicon Catenation is a property of an atom that enables it to form large number of chains to form different atoms that are stable .Carbon exhibits the property of Catenation |
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| 68666. |
The decomposers in an ecosystem convert dash |
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Answer» Saprotroph, organism that feeds on nonliving organic matter known as detritus at a ... The enzymes convert the detritus into simpler molecules, which are then ... saprotrophic fungi are to a large extent responsible for the decomposition of. Biodegradable waste Large complex molecules in dead decaying matter into simpler forms by which they can be utilized by green plants. |
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| 68667. |
What is binary and multiple fisson |
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Answer» Binary fission is a type of fission where a single parent divides to form two daughter cells. example :- amoeba.multiple fission is a type of fission in which a single parent divide into a multiple number of daughters. example:-plasmodium BINARY FISSION =Type of fission wherein the parent body divides into two daughter cells. Karyokinesis happens only once. Eg :- Amoeba, Leishmania, etc.MULTIPLE FISSION = Type of fission wherein parent body divides into many daughter cells. Karyokinesis occurs multiple times. Eg :- Plasmodium. |
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| 68668. |
I want explanation on topic carbon and it\'s compound |
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Answer» Video See edumantra vedio |
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| 68669. |
How to balance a chemical equations easily |
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Answer» It is simple but practice first count the number of atoms on both side and write STEP 1: THE UNBALANCED CHEMICAL EQUATION STEP 2: MAKE A LIST STEP 3: IDENTIFYING THE ATOMS IN EACH ELEMENT STEP 4: MULTIPLYING THE NUMBER OF ATOMS STEP 5: PLACING COEFFICIENTS IN FRONT OF MOLECULES STEP 6: CHECK EQUATION STEP 7: BALANCED CHEMICAL EQUATION Hope,this will help you out!!! By hit and trial method By balancing the number of element on both side of reactant and product.By obey the law of conservation of mass. Its very simple u can practice |
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| 68670. |
How do metal react with oxygen |
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Answer» Metal react with oxygen to form metal oxide .example NA +O2=2NAO Metal + oxygen = Metal oxyde Metal react with oxygen to form metallic oxide.Metal+oxygen→metallic oxide. Metal react with oxygen to form metal oxideFor example2Mg + O2 _2MgO |
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| 68671. |
What is tetravalency and catenation |
| Answer» Catenation: It is the ability to form bonds with other atoms of carbon.\xa0Tetravalency: With the valency of four, carbon is capable of bonding with four other atoms | |
| 68672. |
Chlamydia is related to : (a)urethra (b)syphilis (c)gonorrhoea (d) HIV . ((Bio)) |
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Answer» gσησяянσεα C |
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| 68673. |
Why length of food chain in an ecosystem is generally limited to three or four trophic levels ? |
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Answer» Due to decrease in energy at each trophic levels the length of food chain is less. The length of food chani in an ecosystem is only about 3-4 trophic leveles because of the 10% law . According to 10% law when we go through trophic levels the energy gets decreased in every trophic level |
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| 68674. |
Explain why the planets do the twinkle.... |
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Answer» Planet\'s didn\'t twinkle mate ? Planets are much closer to the earth and are seen as extended source. So, a planet may be considered as a collection of a large number of point-sized light sources. Although light coming from individual point-sized sources flickers but the total amount of light entering our eye from all the individual point-sized sources average out to be constant. Thereby, planets appear equally brighter and there is no twinkling of planets. Due to atmospheric refraction |
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| 68675. |
Define Refraction of light? |
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Answer» Refraction of light is a phenomenon of light in which light rays bend while traveling through obliquely (not normal) rarer medum to denser medium and vice versa.. Refraction is the bending of a wave when it enters a medium where its speed is different. Refraction is the change in direction of a wave passing from one medium to another or from a gradual change in the medium. Refraction of light is the most commonly observed phenomenon, but other waves such as sound waves and water waves also experience refraction. |
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| 68676. |
What is the proper definition of respiration |
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Answer» The biochemical process by which glucose undergoes oxidation in the body of an organism to produce energy is called respiration. Exchange of air between body and surrounding environment Respiration is biochemical process in which cells of an organism obtain energy by combining Oxygen and glucose resulting in release of carbon dioxide ,water and ATP. The breakdown of food in the prescence of energy |
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| 68677. |
What is nutrirtion |
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Answer» Nutrition is the process to transfer source of energy from outside to the body of an organism for maintaining living substance required for proper growth and maintenance of living body. Nutrition is the process by which an organism takes food and utilizes it to get energy, for growth, repair, maintenance, etc. and then excreting the waste material from the body. |
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| 68678. |
John Dalton law |
| Answer» | |
| 68679. |
Previous year sample paper of science |
| Answer» | |
| 68680. |
What is difference between regeneration and fragmentation ? |
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Answer» Fragmentation is a method of asexual reproduction where an organism reproduces by the process of splitting into fragments and each fragment grows into an individual organism. Regeneration, on the other hand, happens when an organism regrows certain parts or limbs which is lost due to predation. Regeneration - the process of getting full organism from it cut body part in fragmenation a multi celluar organism on maturing spilt into two organism |
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| 68681. |
Areteriole contriction result in which resistance of blood flow??? |
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Answer» My cbse guide.com Life processes WHO IS CEO OF TESLA COMPANY A write a detailed note on the nation making after french revolution ??????? |
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| 68682. |
How many girls wants to become mingle kindly DM me on Vivek2.fulara |
| Answer» ಇದನ್ನು ಸೈಬರ್ ಕ್ರಯಿಮ್ ಅಧಿಕಾರಿಗಳ ಗಮನಕ್ಕೆ ತರಬೇಕಾಗುತ್ತೆ.************ | |
| 68683. |
What is villi function |
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Answer» Villi helps to increase surface area for absorption inside small intestine Villi is fingure like projection present inside the inner wall of small intestine which help to increase surface area of the intestine and absorbe the nutrients from the digested food Villi are finger like structures present in the inner walls of the small intestine to ensure smooth absorption of nutrients. These transverse folds are characterized with elongated surface area and extensive blood supply for this proper absorption. to increase surface area of small intestine for absorption. |
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| 68684. |
Geotropism explain for control and cordination |
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| 68685. |
What would be electron dot structure of sulphur which is made up of eight atoms of sulphur. |
| Answer» S8 | |
| 68686. |
How to prevent rancidity ? Explain |
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Answer» Ok bhi 4k to hi ky to 2years 2percent you are 3not the 3same 633are 3to I don\'t have a to hi ky pik ka shirt dik rha hi na na Lang the and the other hand to pik ka shirt dik rha hi na na Lang and the other day of corona awearness essay line 3with 3and 3I 3I 3I a 5good e5 I I 5I 9have et 82ets et to pik kar a lot to pik ka kya ta and I don\'t urufufgisgw9f 1.By using oxidising agent on food with fat and oil2.Storing food in air tight container, which will slow down oxidation3.Keeping food in nitrogenous environment4.Avoiding direct contact with oxygen By using antioxidant like nitrogen and argon gas our keep in air tight container Rancidity is prevented by antioxidants by oxidation example BHT and BHA |
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| 68687. |
Explain the main types of organisms on the basis of mode of nutrition (describe any one in detail) |
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Answer» There are two types of mode of nutrition 1.autotrophs 2.hetrotrophs Autotrophs: The organisms which made their own food is called autotrophs. Example :plants, make their own food, by photosynthesis Hetrotrophs : The organisms which depends on other There are three types of hetrotrophic nutrition Parasitic, saprophytic, holozoic Parasitic : derives food from the host. Saphrophytic:derives Food from dead and decayed organisms Holozoic:takes the solid food substance as a hole There are two types of mode of nutrition 1.autotrophs2.hetrotrophs Autotrophs:The organisms which made their own food is called autotrophs. Example :plants, make their own food, by photosynthesis Hetrotrophs :The organisms which depends on other There are three types of hetrotrophic nutrition Parasitic, saprophytic, holozoic Parasitic : derives food from the host. Saphrophytic:derives Food from dead and decayed organisms Holozoic:takes the solid food substance as a hole |
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| 68688. |
Achievement of mendeleev periodic table |
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Answer» 1) He had successfully arranged elements with similar physical and chemical properties under the same group in his periodic table strictly following the principle of periodic recurrence of properties.2) He had made predicted that there are more elements yet to be discovered and also successfully predicted their properties.3) He had even corrected the wrong atomic masses of certain elements.4) Noble gases which were discovered later found a place in his table. .Mendeleev periodic table araanged in increasing order of atomic masses.It makes easy to study elementHe left some gaps for undiscovered element like Eka boron, eka alumunium eka silicon. The father of the modern periodic table, left space for undiscovered elements such as germanium and etc. They were referred with "Eka" ex: Eka aluminum |
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| 68689. |
How to solve numericals of mirrors and lenses |
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Answer» Mirror formula is 1/f aqual to 1/u+1/v The formula for mirrors is 1/f = 1/u + 1/v (f is focal length, u is distance between object and mirror, v is distance between image and mirror). Formula for lens = 1/f =1/v - 1/u. You should fisrt learn the formulas and new sign cartesian for lenses and mirrors Example :-if u r finding magnification use its formula (differ formula\'s for both miror n lenses).Hope helpful! By knowing their formulas |
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| 68690. |
What is combination reaction. Give one example. |
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Answer» It is a reaction in which two or more substance react and make a new substance. It is as well as exothermic reaction. A + B ------> C + heat These are generally exothermic reaction. In combination reaction , two or more substances react to form a single product.Example: C(s) + O2(g)_____ CO2(g) Those reactions in which two or more substance combine to from a single substance, are called combination reaction.Example:- magnesium and oxygen combine, when heated, to form magnesium oxide: 2Mg(s) + O2(g) ---- 2MgO(s) Two substance combine and formed a single substance |
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| 68691. |
Last year paper solutions CBSE sample papers |
| Answer» No last year paper | |
| 68692. |
numerical of electricity |
| Answer» What ?repeat again please | |
| 68693. |
Can anyone give me tha link of science sample papers of arihant publishing ...... Pdf |
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Answer» I also want ?? Please send I have |
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| 68694. |
Explain factors affecting rate of decomposition? |
| Answer» Following are the important factors affecting the rate of decomposition:Litter QualityThe rate of decomposition depends on the structural and chemical properties of litter. TemperatureTemperature regulates the growth and activity of microorganisms. The temperature is different at different elevations.AerationThe oxygen present in the pores of the soil helps in the growth of microorganisms. Here only anaerobic microorganisms can grow and initiate decomposition.Soil pHThe presence of cations and anions governs the pH of the soil, which in turn affects microbial growth.Inorganic ChemicalsAfter decomposition, the elements like potassium, sodium, calcium, magnesium are released into the soil. Some of these are used by the microorganisms for their growth. Thus, it affects the rate of decomposition.MoistureThe water present in the soil is responsible for various physiological processes of microorganisms present in the soil........Hope it helps....... | |
| 68695. |
TELL ME ABOUT SEXUAL REPRODUCTION IN HOWERING PLANTS....... |
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Answer» It is not deleted, I beleive. Deleted portions Pollination |
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| 68696. |
In our house the connection of light which are series or parllel |
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Answer» Parallel Parallel Parallel connection We need to connect these bulbs ?in parallel combination because it would the divide the current ⚡ across the resistors Parallel |
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| 68697. |
What happen when acid react with metal oxide |
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Answer» Ex. 2 HCl + MgO --------- MgCl2+ H2O... An acid react with metal oxide to form salt and water :Metal oxide+acid ------>salt +water For example ,Copper oxide is a metal oxide .dilute hydrochloric acid react with copper oxide to form copper chloride and water:CuO + 2Hl--------->CuCl2 + H2O Salt will be formed with hydrogen Salt + hydrogen gas |
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| 68698. |
Delate syllabus accedamic unit |
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| 68699. |
How are fats digest in our bodies?where does the process take place? |
| Answer» Fat is digested in small intestine by enzyme lipase. | |
| 68700. |
What is the difference between Binary fission and multiple fission |
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Answer» In binary fission parent cell divides into two daughter cells -exampleAmoeba ,leishmania In binary fission, the parent cell divides itself into two equal and identical daughter cells. It is the most common form of reproduction in prokaryotes such as bacteria. In multiple fission, a single parent cell is divided into many daughter cells. BINARY FISSION = parent body divides into two daughter cells. Karyokinesis occurs only once. Eg :- Amoeba, leishmania, etc.MULTIPLE FISSION = parent body divides into multiple daughter cells. Karyokinesis occurs multiple times. Eg :- Plasmodium. In binary fission, there is only one parent organism. Eg. Amoeba In multiple fission, there are more than one parent organism.. Eg. Plasmodium H |
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