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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.
| 43501. |
What is the alkanes?? |
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Answer» Alkanes are the organic compounds that consist of single-bonded carbon and hydrogen atoms. The formula for Alkanes is CnH2n+2CnH2n+2, subdivided into three groups – chain alkanes, cycloalkanes, and the branched alkanes.These are comprised of a series of compounds that contain carbon and hydrogen atoms with single covalent bonds.This group of compounds consists of carbon and hydrogen atoms with single covalent bonds. Also, comprises of a homologous series having a molecular formula of C\xa0n\xa0H\xa02 n+2 Alkanes are saturated hydrocarbon that contain carbon- carbon single bond Srry yeh alkenes h... Unsaturated hydrocarbon that contains at least one carbon–carbon double bond.... |
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| 43502. |
Can oxidation and reduction takes place alone.Justify it ? |
| Answer» No its not takes place alone | |
| 43503. |
Explain why, a land plant may die it\'s root remain waterlogged for a long time |
| Answer» \tIn the water logged situation, plants often die because it cannot respire.\tThe air spaces in the soil when it is clogged with water creates bubbles which generates oxygen thus declining the plants to respire.\tEven the roots fail to transport food and water to other parts.\xa0 | |
| 43504. |
Why bases are soapy in touch? |
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| 43505. |
Compensation point |
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| 43506. |
What is Brown Fume ? |
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| 43507. |
Defination of catalyst |
| Answer» Jo ek tarah se aag lagata hain | |
| 43508. |
How energy is generate in the process of glycolysis.?? |
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Answer» Not satisfied with ur ans. ATP energy is produced |
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| 43509. |
Some points of dark reaction |
| Answer» Dark reaction is also called carbon-fixing reaction. It is a light-independent process in which sugar molecules are formed from the carbon dioxide and water molecules. | |
| 43510. |
what is villi plz give me answer |
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Answer» Finger like projections present inside the inner surface of small intestine , responsible for the aborsption of digested food by the process of diffusion. Most wlcm.? thanks parveen and somya Villi are the numerous finger like projection that are present in stomach and help in the absorvation of food. Villi are numerous finger like projections which total surface area for absorption |
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| 43511. |
What is the principle behind balancing chemical reaction |
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Answer» According to law of conservation of mass matter neither be nor be destroyed A Chemical equation is always balanced on comparison of number of atoms of each element on both sides of the reaction.During the balancing of chemical equation it is need to be followed that “ it has to follow law of conservation of mass (mass on reactants side should be equal to mass on the products side)”. To follow law of conservation of mass |
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| 43512. |
10th ka result kab aayega |
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Answer» 5 13 May ko...? 7 |
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| 43513. |
What is the chemical name of HCL |
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Answer» Hydrochloric acid Hydrogen chloride Hydrochloric acid |
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| 43514. |
mettlic conductor is how charged |
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| 43515. |
What do you mean by holozoic nutrition |
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Answer» It is type of nutrition in which the organisms take complex food by the process of egestion and then the food goes under further digestion and then is assimilated into cells and utilized Holozoic nutrition is the type of nutrition in which an organism takes the complex organic food materials into its body by the process of ingestion; the ingested food is digested and then absorbed into the body cells of the organism. It is a type of hetrotrophic nutrition in which any organism take complex food by ingestion and that infested food is utilised for getting energy ex humans |
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| 43516. |
What is the OHM \'s laws |
| Answer» OHM’s LawOHM’s law states that under no same temperature,\xa0electric current\xa0flowing through an ideal conductor is\xa0directly proportional to the potential difference\xa0across its ends.V ∝ IV = IR, R – Resistance\tResistance\xa0is a property of conductor to resist flow of charge through it. Its SI unit is\xa0Ohm (Ω).R = V/I, 1 Ohm = 1 Volt/ 1 Ampere\tI = V/R denotes that\xa0Current is inversely proportional to Resistance. Hence, greater the resistance lesser will be the flow of current and vice-versa.\tA\xa0rheostat\xa0or a\xa0variable resistor\xa0is a device or a component which allows changing of resistance in a circuit keeping the voltage same.\tIn a conductor, electrons are attracted by the atoms. This is a resistive force which is lower for a good conductor but very high for an insulator. A conductor having some resistance is called a\xa0Resistor.Ohm’s Law experiment | |
| 43517. |
Which charge does wire contain? |
| Answer» A\xa0wire\xa0is a single, usually\xa0cylindrical, flexible strand or rod of metal. Wires are used to bear mechanical\xa0loads\xa0or\xa0electricity\xa0and\xa0telecommunications signals. The wire is commonly formed by\xa0drawing\xa0the metal through a hole in a\xa0die\xa0or\xa0draw plate.\xa0Wire gauges\xa0come in various\xa0standard\xa0sizes, as expressed in terms of a\xa0gauge number. The term\xa0wire\xa0is also used more loosely to refer to a bundle of such strands, as in "multistranded wire", which is more correctly termed a\xa0wire rope\xa0in mechanics, or a cable\xa0in electricity. | |
| 43518. |
Why a magnet loses it\'s magnetism when heated or beated |
| Answer» Because when the magnet fall the surface of earth snach the magnetism of the magnet | |
| 43519. |
How to check the old password |
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Answer» U can write an email to my cbse guide No method Iss app me shayad old password check karne ka koi option nahi hai...mere hisaab se... Mycbse guide Konse app me? |
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| 43520. |
How is an acid diluted |
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| 43521. |
What is the double circulation |
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| 43522. |
What is reduction reaction |
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Answer» Addition of hydrogen and removal of oxygen in chemical reactions It is defined as a process which involve loss of oxygen and gain of hydrogen. |
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| 43523. |
Why the concave mirror is used in solar furnace |
| Answer» Concave mirrors are used in solar furnaces, because concave mirrors are the only type of mirror that reflects light in toward a single focal point. A flat mirror does not have a focal point. It does regular reflection off all of its points. A convex mirror does have a focal point, but it is an imaginary point that exists behind the mirrored surface. The light will reflect up and away from the focal point of a convex mirror. The concave mirror takes all light that strikes its surface and reflects it all "down and in" toward the focal point. The collected light at the focal point is very powerful. It is bright and carries a lot of thermal energy, which is the goal of a solar furnace. It\'s basically the equivalent of taking a magnifying glass to burn ants with. The difference is that the magnifying glass is a lens instead of a mirror, but both devices collect light and gather it into a single point. | |
| 43524. |
Why the convex mirror is used on side of the vehicles? |
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Answer» Guru randhawa Convex mirrors are used as rear-view mirrors in vehicles. It is also installed behind automated teller machines as a security measure, becausse the field of view for a convex mirror is greater than that for a plane mirror, the aperture being the same.\xa0 |
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| 43525. |
Why the concave mirror is used in headlights of car? |
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Answer» Guru randhawa A concave mirror is used in the headlights of the car because a concave mirror can produce powerful parallel beam of light when the light source is placed at their principal focus. |
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| 43526. |
Perodic table |
| Answer» Please search this in GOOGLE | |
| 43527. |
HOw i form the equation of reactions?~ |
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| 43528. |
what is autotrophic nutrition plz give me answer |
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Answer» thanks The organisms who make their own food with the help of surroundings , known as autotrophs , the nutrition taken by autotrophs is known as autotrophic nutrition |
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| 43529. |
Draw a n |
| Answer» ?? | |
| 43530. |
Define the power of it si unit |
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Answer» 1 watt _when a work of 1 joule is done in 1 second the power is said to be 1 watt. the rate at which work is done or rate at which energy is consumed is known as power. It\'s si unit is Watt which is taken from name of JAMES WATT, the great scientist .1Watt =1 joule per second . Watt |
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| 43531. |
Examples of redox reaction at least 10 |
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| 43532. |
Define senselaw |
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| 43533. |
What is Principal axis ? |
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| 43534. |
Define bio mass and hydro power do work |
| Answer» Bio mass:\tPlant and animal wastes (dung), vegetable wastes, sewage are decomposed in absence of oxygen to produce Biogas\tSince the source of these fuels is animal dung, the source of these fuels is called Biomass.\tIt is commonly called Gobar-gasHydro power:\tDams are constructed at heights to obstruct the flow of water and store it. The stored water has Potential Energy.\tWater stored in heights now is allowed to flow to low levels. The potential energy is converted to kinetic energy and moves the turbines. Electricity is produced.\tThis is called Hydroelectricity because the potential energy of water which is stored at elevated heights is converted into kinetic energy of flowing water which in turn is converted electricity\tIt is a renewable source of energy, since rainfall comes over and over again. | |
| 43535. |
Different digestive enzyme present in human alimentary canal |
| Answer» Salivary amylasePepsin | |
| 43536. |
anyone define electricity. |
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Answer» Electicity is important source of energy which is used in our daily life electricity is a form of energy resulting from the existence of charged particles like electrons(-) and protons(+),either statically as a accumulation of charge. thank u electricity is flow of charges. Electricity is a form of energy resulting from the existence of charged particles (such as electrons or protons), either statically as an accumulation of charge or dynamically as a current. |
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| 43537. |
Double distance |
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Answer» Hi Hl |
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| 43538. |
Anyone give me idea of make model of control and coordination |
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| 43539. |
Name any two end product of plants |
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Answer» During the process of photosynthesis, Carbon dioxide\xa0and\xa0Water\xa0combine in the presence of Sunlight and Chlorophyll\xa0to produce\xa0Carbohydrates(glucose) and Oxygen. Thus, the end products of photosynthesis are Carbohydrates(glucose) and Oxygen. End products of photosynthesis are glucose, oxygen and water Glucose oxygen Starch and oxigen |
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| 43540. |
Any one make notes of class 10 science |
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Answer» As fast as u can Chapter 1,12,2,6 Send me Yes Which chapter |
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| 43541. |
Tell which gas is filled in the packet of chips |
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Answer» Nitrogen gas Nitrogen Nitrogen |
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| 43542. |
What is a difference between breathing and respiration?? |
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Answer» Hy In respiration breaking down of food particles take place but in breathing we simply take oxygen and release CO2 Hy |
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| 43543. |
Why do mean by a precipitation reaction?explain giving examples. |
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Answer» When two reactants in solution react and one or more of the products is insoluble or forms a precipitate, the reaction is called a precipitation reaction. For example, when a solution of iron chloride and ammonium hydroxide are mixed, a brown precipitate of iron hydroxide is formed.In a chemical reaction down arrow head is symbol of precipitation (↓)FeCl3 (aq) + 3NH4OH → Fe(OH)3 (s) ↓ + 3NH4Cl A reaction in which precipitates are formed is called a precipitation reaction. Precipitates are insoluble solids in a chemical reaction which emerges from a liquid solution. For eg......Na2SO4 +BaCl2 -------> BaSO4 + NaCl ~~~Here white precipitates are formed of BaSO4.....Hope it helps?? When two reactants in solution react and one or more of the products is insoluble or forms a precipitate, the reaction is called a precipitation reaction. For example, when a solution of iron chloride and ammonium hydroxide are mixed, a brown precipitate of iron hydroxide is formed. |
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| 43544. |
Notes on power |
| Answer» Class 9 science s Chan\'s book clearly given with explanation | |
| 43545. |
What is carnivores |
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Answer» Carnivore are which animal or any living thing which eats only meat Kya ho gaya shivangi ji Carnivores:- The animals which eat only flesh of other animals are called carnivores e.g., lion, tiger etc. The organismwhich eat flesh A carnivore is an animal that gets food from killing and eating other animals. Carnivores generally eat herbivores, but can eat omnivores, and occasionally other carnivores. Shivangi its herbivores animal.... Those organism which eats only grass known as carnivorous animal |
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| 43546. |
Explain germination of pollen on stigma |
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Answer» Pollination is the process of combining pollen from male flowers with female flowers to form seeds and set fruit.When the pollen grain is deposited on the stigma it starts to germinate and the pollen tube grows up through the pistil of the female flower until it reaches the ovary and fertilisation occurs. after the pollen lands on suitable stigma, it has to reach the female germ cells which are in ovary. for this, a tube grows out of pollen grains and travel through style to reach the ovary. S Chan\'s book clearly given |
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| 43547. |
What are acids ...? |
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Answer» Acids are chemical substances which readily produce H⁺ ions when dissolved in aqueous solutions and are corrosive or sour when tasted and can neutralize alkalis and turns blue litmus to red colour [email\xa0protected] is pr krke dekhna ek baar a liquid substance that can dissolve metal and may burn your skin. Acids have a pH value of less than 7 |
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| 43548. |
Why are redox reaction called supplimentry reaction |
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| 43549. |
Define double displacement .reaction.. |
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Answer» exchanged to form the products. During this reaction, the cations and anions of two different compounds switch places, forming two entirely different compounds.The general equation which represents a double displacement reaction can be written as:AB + CD → AC + BDFor example: BaSO4+NaCl → BaCl2+Na2SO4 A reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products. |
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| 43550. |
When we injured our platelets get reptured when they get reptured what does they release |
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Answer» They release thromboplastin which convert pro thrombin into thrombin and thrombin convert fibrinogen into fibrin and fibrin clot the affected area Actually they don\'t release some chemical they basically star clotting that affected area and rapture those areas |
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