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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.
| 59051. |
Give an example of decomposition reaction |
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Answer» A decomposition reaction can be defined as a type of chemical reaction in which under suitable conditions, one single compound splits into multiple simpler substances.HCl(aq) + NaOH(aq) → NaCl(aq) + HOH(l) Refer ncert text book once, pg no8, 9 , 10 |
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| 59052. |
how can we write a chemical equation from Chemical reaction |
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| 59053. |
Identif in the following reaction 2Pbo+C >2Pb+Co |
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Answer» This is a redox reaction. Here PbO is getting reduced to Pb and at the same time carbon(C) is getting oxidised to form carbon monoxide(CO). reaction is displacement reaction when lead oxide reacts with carbon to form lead and carbon oxide reduction reaction |
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| 59054. |
Why diffusion is suficient in unicellular organisms but insufficient in multicellular organisms |
| Answer» In large multicellular organism like human,the oxyzen of air will have to travel large distance inside the human body to reach each and every cells of the body .Now,since diffusion is a very slow process it will take a very long time to make oxygen available to all the body cells.Thus diffusion is insufficient meet the oxygen requirement of multicellular because the volume of is so big that oxygen cannot diffuse into all the internal cell of human body quickly.HOPE ITS HELP | |
| 59055. |
Balance the following equations:-1)fe+H2O = fe3o4+h22)ch4+o2 = co2+h2o3)na+h2o = naoh+h24)h2+o2 =h2o |
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| 59056. |
What does one mean by exothermic and reaction given example |
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Answer» The type of reaction in which excess heat is evolved as a result of making of bonds or breaking of bonds during a chemical reaction is called an exothermic reaction. Exothermic reaction is a type of reaction in which heat liberated. |
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| 59057. |
Name the SI unit of charge and define it |
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Answer» The SI unit of charge is coulomb ....it is defined as the amount of charge travelled from one terminal to other at a specific unit of time.....Q/t Coloumb |
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| 59058. |
Potencial |
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| 59059. |
bby |
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| 59060. |
What is tyndall effect... |
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Answer» \tThe earth\'s atmosphere is a mixture of many minute particles such as smoke, water droplets, dust etc. When a beam of light strikes these fine particles, the path taken by that beam becomes visible. Light gets reflected continuously by these particles and then reaches us.\tThis phenomenon of scattering of light by particles is the Tyndall effect.\tTyndall effects explain why we see the sky as blue, forests as green and so on. The scattering of a beam of light by the particles of a colloid is called the Tyndall effect. |
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| 59061. |
Why respiration is consider in exothermic process |
| Answer» Respiration is an exothermic process because during breakdown of food, it undergoes slow combustion resulting into release of energy. | |
| 59062. |
Plzz tell me the Bestt ncert solutions book of science mathematics |
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Answer» Rd sharma is best Rsaggraval is also good Okk RD for maths All in One |
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| 59063. |
Why respiration is kown as exothermic reactions |
| Answer» Becoz in this reaction energy is released..... | |
| 59064. |
Why voltmeter is places parallel |
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Answer» Voltmeter should always be placed in parallel to measure the voltage of the device .. This is important because objects in parallel experience same potential difference..... Because it have less reactivity |
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| 59065. |
Why are rings of cartilage present in the throat |
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| 59066. |
What is the molecular formulae of nitrogen? |
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Answer» N2 N2 |
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| 59067. |
What is the molecular formula for Nitrogen Triiodide |
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| 59068. |
Whai is kinetic energy? |
| Answer» The energy possessed by a body by virtue of it\'s motion is known as its Kinetic energy. | |
| 59069. |
Why human beings cannot get oxygen in the process of duffusion |
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| 59070. |
Write the method use of prevention of corrosion and rancifity |
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Answer» Rancidity can be prevented by using air tight containers nd Flushing packets with nitrogen gas..... Corrosion can be prevented by galvanisation, painting... By keeping vegetables in air tight container and by using alloy |
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| 59071. |
Burning of a magnesium ribbon in air and collection of magnesium oxide in a watch glass |
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| 59072. |
How is the amount of urine regulated |
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| 59073. |
What do you mean by cross section |
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| 59074. |
What is role of teeth and tongue in digestion |
| Answer» Teeth help in the process of mastication i.e. in cutting food into small pieces. Tongue help in proper mixing of food with saliva. | |
| 59075. |
Explain...... Respiration |
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Answer» Thanks Respiration is the process of oxidation or breaking down of organic compounds, particularly glucose with the release of energy.It is a biochemical process in which chemical energy of organic molecules is converted into usable energy in the cells. |
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| 59076. |
Define anaerobic respiration |
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Answer» Respiration is the process which involves exchange of oxygen and carbon dioxide between the organism and the environment. Respiration is the process by which chemical energy stored in the food is released in the form of ATP along with carbon dioxide and water.Respiration can be of two types – Aerobic and Anaerobic. Both of these respirations take place inside the cell.Anaerobic respiration involves the breakdown of food into alcohol and carbon dioxide in the absence of oxygen. The breakdown of glucose to release energy from the cells in anaerobic conditions is fermentation. Under anaerobic conditions prevailing in our muscle cells, the insufficiency of oxygen converts the pyruvate molecules into lactic acid and energy. Accumulation of lactic acid in our muscle cells causes cramps. A chemical process in which energy is produced from food without using oxygen, for example by yeast |
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| 59077. |
How does humidity affect the stomatal opening and closing |
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Answer» Thanks High humidity stomatal pore opens , and low humidity stomatal pore get closed. |
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| 59078. |
why diffusion is insufficient to meet the oxygen demands of large animals |
| Answer» In multicellular organisms like humans the body design is very complex and the oxygen demand is quite high. The oxygen requirements of an animal cannot be met by the process of diffusion as diffusion is a very slow process.\xa0To overcome this, multicellular organisms have specialized cells and tissues for performing various necessary functions of the body such as intake of oxygen and food. This helps for the higher animals like humans to meet the sufficient oxygen requirement. Unlike unicellular organisms, multicellular cells are not in direct contact with the outside environment. Therefore, diffusion simply cannot meet their oxygen requirements. | |
| 59079. |
Can u tell me the name of best science class 10 exempler |
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Answer» Ncert Evergreen publication Evergreen. Oswal books |
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| 59080. |
What is nutritious food |
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Answer» Nutrition is the science that interprets the interaction of nutrients and other substances in food in relation to maintenance, growth, reproduction, health and disease of an organism. It includes food intake, absorption, assimilation, biosynthesis, catabolism, and excretion Food which givesa proper diet with all the essential nutrients... to remain fit and healthy are known as nutritious foods..... Nutritius foods are thise which gives us proteins, fats & carbohydrates ok...? |
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| 59081. |
Why was advised that antibiotics should taken by a qualified doctor ? |
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| 59082. |
How do single celled organisms obtain their food |
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| 59083. |
How do single celled organisms obtain their nutrition |
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| 59084. |
Explain double displacement reaction in brief |
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Answer» Double Displacement Reaction:Reactions in which ions are exchanged between two reactants forming new compounds are called double displacement reactions.AB + CD → AC + BDExample: When solution of barium chloride reacts with the solution of sodium sulphate, white precipitate of barium sulphate is formed along with sodium chloride.BaCl2 + Na2SO4 → BaSO4 + 2NaCl\xa0 A type of chemical reaction in which both the reacting elements displace each other from their salt solutions is called double displacement reaction. For ex-BaCl2(aq) + Na2SO4(aq) ----------->BaSO4(s) + 2NaCl(aq) |
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| 59085. |
Difference between permanent and electromagnet |
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Answer» \tElectromagnetPermanent MagnetThe magnetic properties are displayed when current is passed through itMagnetic properties exist when the material is magnetizedThe strength is adjusted depending upon the amount of flow of currentThe strength depends upon the nature of the material used in its creationRemoval of magnetic properties is temporaryOnce magnetic properties is lost, it becomes uselessIt requires a continuous supply of electricity to maintain its magnetic field.It doesn’t require a continuous supply of electricity to maintain its magnetic fieldIt is usually made of soft materialsIt is usually made of hard materials\t Permanent magnets have magnetism as an intrinsic property which can be lost only when they are kept in sunlight or they are made to fall from a great height, whereas, electromagmets are given the power of magnetism by passing current through them so their power can be switched of by stopping the supply of electric currentAlso, permanent magnets have a fixed range of power and in the case of electromagnets, their power can be controlled(increased or decreased) by supplying more or less electric current. Permanent magnets power do not depend on factors like currentElectromagnets power depend on factors like current |
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| 59086. |
Name some natural resources |
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Answer» Soil ,water, wind, land , sunlight or many more Wind, water,sun,biomass... |
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| 59087. |
All activities of chapter 1 |
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| 59088. |
Important reaction |
| Answer» Thermite reaction.. | |
| 59089. |
describe parenchyma with there three parts |
| Answer» Parenchyma– These tissues are found in the soft parts of a plant such as the roots, stems, leaves, and flowers. The cells of this tissue are loosely packed and contain large intercellular spaces between them. Each cell has a vacuole at the center. The functions of parenchyma tissues are storage, photosynthesis, and to help the plant float on water. | |
| 59090. |
why wall donot form image |
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| 59091. |
Why synovil fluid is decrease in human beings |
| Answer» Within the knee joint synovial fluid is highly viscous which provides a friction free environment . In patients with OA the molecular weight of HA decrease causing the synovial fluid to become less viscous thus leading in increased friction and abnormal joint movement..... | |
| 59092. |
What is the work of redoxsin protein in human eye |
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| 59093. |
Why is the decomposition of Vegetable matter an exothermic reaction?? |
| Answer» In an decomposition reaction, energy is usually absorbed and they are termed as endothermic reaction, But in the casw of decomposition of vegetable matter, when microbes reacts on animal or plant waste, a lot of energy is given out which leads to the release of gases thus terming the reaction as exothermic reaction . In other decomposition reaction energy is absorbed to break down the bonds between the substances, but as microbes acts for decomposition of vegetable matter it becomes exothermic. | |
| 59094. |
Equation of double displacement reaction |
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Answer» Double Displacement Reaction:Reactions in which ions are exchanged between two reactants forming new compounds are called double displacement reactions.AB + CD →AC + BDExample: When solution of barium chloride reacts with the solution of sodium sulphate, white precipitate of barium sulphate is formed along with sodium chloride.BaCl2 + Na2SO4 → BaSO4 + 2NaCl Na2SO4 + BaCl2 -------------> 2NaCl + BaSO4 Hcl+naoh=nacl+h2o........... Fine and u... Equation is how are you aastha |
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| 59095. |
Chemical formula of citric acid |
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Answer» C6H8O7. Hey Sagar here is ur answer!!Citric acid-: A tricarboxylic acid that is propane-1,2,3-tricarboxylic acid bearing a hydroxy substituent at position 2. It is an important metabolite in the pathway of all aerobic organisms. Citric acid is a weak organic acid that has the chemical formula C6H8O7.Hope it helps.......#@diti? |
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| 59096. |
give example of physical and chemical property which comes in last 10 years |
| Answer» A physical propertyis an aspect of matter that can be observed or measured without changing it. Examples of physical properties include color, molecular weight and volume. A chemical property may only be observed by changing the chemical identity of a substance.....Hope it helps.......#@diti? | |
| 59097. |
What are synapse |
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Answer» Thanks Synapses: The junction points between the two neuron are called synapses. It is the junction between the axon of one neuron and the dendrite of next neuron . At the synapse, the axon and the dendrite do not touch each other, there is a small gap between the two. The message passes from one neuron on to other neuron through synapse by a chemical (neurotransmitter). |
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| 59098. |
What is oxidation agent and reduction agent |
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| 59099. |
Is i can write that ampere amd volter are used intrument in potential and curreny |
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Answer» Ampere is used to measure the electric current in a circuit and voltmeter is used to measure the potential difference in the circuit. Sry current |
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| 59100. |
Why is animal plant eat easily |
| Answer» We can easily digest the plant cell as it does not have a cell wall, which is made is made up of complex substance, cellulose.Cellulose is hard to digest. | |