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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.
| 59651. |
Define chemical reactions |
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Answer» Your answerThe process in which new substances are formed with new properties is called chemical reactiom.I HOPE ITS HELP YOU The process in which new substances are formed whose chemical properties are different to the first products, is known as Chemical Reaction.Hope it may helps u......☺️ The process which involves breaking of chemical bonds present in the reactant molecules forming new chemical bonds to give the products is called chemical reactions |
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| 59652. |
Differenciate between respiration and photosynthesis |
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Answer» The process by which plants makes their own food by inorganic substance(co2,water etc) is called photosynthesis.It is done by plants.In this process absorpation of co2and releasing of o2 is occured-----The process of releasing energy by oxydation of food is called respiration. It has two parts 1-aerobic respiration 2-anaerobic respiration.It is done by animals.In this process o2 is absorbed and co2 is released Respiration is taken in human body but.. Photosynthesis is taken in plants |
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| 59653. |
What are crams causrd in our musle durin sudden activity |
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Answer» When we do a sudden activity or vigorous exercise our muscles need energy at a very higher rate which could not be supplied completely by aerobic respiation .This energy is given by anaerobic respiration which takes place in our muscles and forms lactic acid which causes it to contract rapidly giging pain called as cramps. crams is the pain after doing heavy exercise by the formation of lactic acid during anaerobic respiration Because of the process of anaerobic respiration taking place in our body in the presence of lactic acid. |
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| 59654. |
State the importance of lymph in human transport system |
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Answer» lymph have lymphocyte cells which help in the formation of WBC which protect us by many kind of dieases Lymph take part in nutritive process in our body. It fights with germs. |
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| 59655. |
Seeds can be stored for month can we classify them non living things |
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Answer» The seed is living but shows its characteristics only when it gets appropriate conditions such as warmth ,moisture ,water,soil.Till then it is dormant but cannot be classified as non living Till they not have the movement or processes like growthing ,respiration ,circulation and excretion they will not come into living beings ......or things ???? |
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| 59656. |
Electric line of force and 9 its nature . please give me answer of this question. |
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Answer» Some one can be me answer of this question Sorry hmne to pda hi nhi to hme aata hi nhi ye ch. |
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| 59657. |
hevy magnesium ribbon is cleaned before burning |
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Answer» for removing the layer of mgo because it restrict the buning of mg ribbon Magnesium ribbon is cleaned with sandpaper before burning to remove the deposited layer of basic magnesium carbonate (Magnesium carbonate hydroxide). Swtgtidg To remove the MgO which is formed by Mg ribbion when exposed to air . |
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| 59658. |
a) clearly dishtingush b/w base and alkaiesb) how are base claasifed base upon their strength |
| Answer» A ) Alkalies are the bases that are soluble in water. Not all the bases are soluble in water .B) Strength of acids and bases depend upon pH of the subsatance . In case of base, more the pH more stronger the base is. | |
| 59659. |
All reaction |
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| 59660. |
India ki kya halat ho gayi ? ? |
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Answer» ???? Pata ni yara Afghaninstaan haay haay??? Chlo ek saath panoti lgaate h Afghanistan ko...??? Vahi toh aj pata nhi kya ho gaya... ????kya ho ra hai Ab chance hai ? Hn yrr..pta nii kya hoga |
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| 59661. |
What is the chapter checklist of class 10 of science |
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| 59662. |
I wanna talk . I am getting bore |
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Answer» Okkk listen if u have that much problem so u can ingor these things i know about importance of 10 class as i got 98 percent in 10 class who r u to tell me about importance of 10 keep your lecture in your pocket bye and plz don\'t report ok We all gather here to study but you i thought you have much time to talk if you have so talk on fb and chatting apps but not here becoz.... 10th is very important so use it in meaningful way i thought it will enough for you.... ... |
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| 59663. |
Why is diffusion insufficient to meet the oxygen requirementa of human body ? (3 mark) |
| Answer» Diffusion is insufficient to meet the oxygen requirement of human body 1.All our cells are not in direct contact with the environment so easy diffflusion is not possible.2.diffusionis a very slow process . It takes too much time for even short distance trasmissions .So it is not efficient for our body.# If transportation were to be through diffusion in our body then it takes approximately 3 years for a molecule of oxygen to reach to reach our toes from lungs. | |
| 59664. |
Chemical equation of water |
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Answer» 2H2O + O2 = 2H2O 2 H2O 2H2+02 gives 2H20 |
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| 59665. |
Why curd and pickles are not stored in copper and brass potential . |
| Answer» Remember curd and pickles contain lactic acid and acetic acid respectively. Copper and Brass are metals.We know that when an acid reacts with a metal ,then salt and hydrogen gas are produced.Curd and pickles are not stored in copper and brass utencils they react with each other to form harmful salts which may degrade the food quality or cause food poisoning. | |
| 59666. |
List three types of vessels in human circulatory system in tabular form. |
| Answer» 1.Arteries2.Veins and,3.Capillaries | |
| 59667. |
Why electrons and protons are discovered |
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| 59668. |
Why bulb lights up quickly when switched on give answer in detail |
| Answer» Because the electrons move fastly and flow the charge from switch to the bulb whenever we turn off the bulb the electrons stops where they are moving or flowing the charge and when switch is on the electrons rapidly do their wrk .........???? | |
| 59669. |
Aluminum is a reactive metal but is still used for packing food articles ? Give reason |
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Answer» for preventing food from rancidity. It stop the oxydation process Aluminium is a reactive metal . When it is kept in moist air for some time it gets covered with a thin layer of aluminium oxide which is passive and does not react. Hence the food material inside the aluminium foil does not get spoiled. |
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| 59670. |
What is coulomb |
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Answer» Coulomb is a SI unit of charge. 1 coulomb is defined as current flowing through a conductor per unit time (or per second). amount of charge flowing in 1 second i called one coloumb.s.i unit of charge is coloumb . Amount of charge flowing in 1 second is called one coloumb It is the S.I unit of charge. |
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| 59671. |
Whai is atoms |
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Answer» It is a smallest part of any matter. Number of atoms get together to form a object An atom is a smallest unit of a substance that does not exist independently but takes part in a chemical reaction. It is the smallest unit of an element which take part in chemical reation. It is a smaller unit of an object. Groul of molecules together known as atom |
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| 59672. |
How is evolution linked to classification? |
| Answer» Classification is the arrangement of organisms into groups on the basis of their characteristics. Characteristics are details of appearance or behaviour. Classification based on evolution is considered the most advanced and effective. The classification of organisms/ species into groups is a reflection of their common ancestors and hence evolutionary relationship also. Classification done on the basis of evolution is known as phylogenetic classification. Hence they are closely related. | |
| 59673. |
What will happen if enzymes of pancreatic juice transferred in stomach |
| Answer» it makes the food alkaline | |
| 59674. |
Ch 10 ph 171 2nd q. -(3) x (-10) = -30What is this?? |
| Answer» It\'s wrong or should be 30 | |
| 59675. |
What is reproductive system |
| Answer» Reproduction is the process by which organisms produce their offspring and the set of organs required for this process is called the reproductive system. Every other organ in the human body is identical in shape and function both in males and females except the organs of the reproductive system. Males and females have a different set of reproductive organs in their respective systems. | |
| 59676. |
Why are lungs divided into very small sac like structures |
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Answer» Thank you? To increase the surface area |
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| 59677. |
Which is the largest cell body |
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Answer» Nucles \tThe largest cell in the human body is the female egg, also known as an ovum. It is 1000 micrometers in diameter.\tThe longest cell is the nerve cell. Nucles in animal cell and vacuoles in plant cell |
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| 59678. |
Work of gastric juice in digestion |
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Answer» pepsin help in digest the rotein by converting it into peptos.HCL HELP TO MAKE THE FOOD ACIDIC AND KILL THE BACTERIA.mucus protect the innerlining of stomach by the secreation of hcl of its own. Gastric juice is found in stomach it contains 3 enzyme. Pepsin - it digests the protein . HCL- it mades food acidic medium . Mucus- it prevents from the inner lining of stomach |
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| 59679. |
List three types of vessels in human circulatory system in tabular form. (3mark) |
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Answer» There are three types of blood vessels ―● arteries● veins● capillaries.\tArteries - carry blood away from the heart as the heart pumps blood into the arteries,the blood flows rapidly and at a high pressure.\tCapillaries - arteries branches into smaller and smaller arteries and finally into capillaries.Capillaries are the thinnest blood vessels, about as thin as a strand of your hair. they have very thin walls through which oxygen, digested food, carbon dioxide and other waste products are exchanged between the blood and the surrounding cells.\tVeins - the capillaries join up to form the veins , which carry the blood back to the heart, veins have thin walls. thy have valves, which allow the blood to flow only towards the heart.\xa0 Atery , vein , capillaries |
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| 59680. |
Emulification full explainig |
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Answer» Your welcome ? Thanks Its Emulsification*The process of breakdown of large fat globules into smaller fat globules by bile juice is called emulsification. |
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| 59681. |
What is the function of lympe |
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Answer» WHEN the question is about lymph then.it has lymphocyte cells which help in the formation of WBC that protect our body from many disease Nothing ???? Lingm |
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| 59682. |
Write the name and function of all plant hormones? |
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| Answer» The physiological effect of each plant hormone (called phytohormone) is described in following table. | Plant Hormone\xa0 | Physiological Effect\xa0 | \t\t\tAuxin\xa0It is synthesised in the young tip of roots and shoots.It diffuses towards the shady side of the plant, which stimulates the cells to grow longer, resulting in bending of shoot towards the lightIt promotes cell elongation and division.It also plays important role in the formation of roots and seedless fruits.GibberellinsThese hormones helps in growth of stem and flower.These hormones also Help\xa0in germination of seed.CytokininsIt promotes cell division and delay ageing in leaves.It reduces apical dominance and also stimulates the leaf expansion.Abscisic acid\xa0It is a Growth inhibitor hormone that reverses the growth promoting effects of auxin and gibberellins.It causes the dormancy of seeds, wilting of leaves, closing of stomata and loss of proteins and chlorophyll.EthyleneIt promotes transverse growth, also promotes senescence and abscission of leaves.It acts as an essential hormone for the ripening of fruits.\t|
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| 59683. |
Why do we need to balance a chemical equation? |
| Answer» To follow the law of conservation of mass Mass can neither be created nor destroyed | |
| 59684. |
100 balanced chemical equations for claaa 10 |
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| 59685. |
write the achievements of mendelevs periodic table |
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| 59686. |
How do amoeba obtain its nutrition |
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Answer» An Amoeba obtain its food by using the process of endocytosis in which the flexibility of the cell membrane enables the cell to engulf in food and other material from its external environment. Amoeba obtain it\'s nutrition by its false feet pseudopodia |
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| 59687. |
Explain working of heart |
| Answer» \tThe right atrium receives blood from the upper and lower body through the superior vena cava and the inferior vena cava, respectively, and from the heart muscle itself through the coronary sinus. The right atrium is the larger of the two atria, having very thin walls. The right atrium opens into the right ventricle through the right atrioventricular valve(tricuspid), which only allows the blood to flow from the atria into the ventricle, but not in the reverse direction.\tThe right ventricle pumps the blood to the lungs to be reoxygenated.\tThe left atrium receives blood from the lungs via the four pulmonary veins. It is smaller than the right atrium but has thicker walls. The valve between the left atrium and the left ventricle, the left atrioventricular valve(bicuspid), is smaller than the tricuspid. It opens into the left ventricle and again is a one-way valve.\tThe left ventricle pumps the blood throughout the body through the aorta, which\xa0is the\xa0largest artery in the body. The walls of the left ventricle are the thickest among all the chambers. | |
| 59688. |
Explain the formation of DNA |
| Answer» Each nucleotide consists of a phosphate, a 5-carbon sugar, and a nitrogen-containing base (pyrimidine or purine). As demonstrated in the picture on the right, phosphate is represented by an orange P in a circle, the sugar is represented by "HO 3\'", and the nitrogen base is represented by the beginning letter of the pyrimidine or purine.DNA strands run anti-parallel to each other with one strand having a 5\'-3\' direction and one strand having a 3\'-5\' direction. The direction of a strand is determined by what is found at the end. A strand ending with a phosphate is the 5\' end and a strand ending with a hydroxyl (HO) group is the 3\' end. Bases bind to each other in a complementary fashion with adenine only binding to thymine or uracil and guanine only binding to cytosine. Complementary bases link by hydrogen bonds to create the DNA double helix. The process of complementary single strands of DNA forming double stranded DNA is called hybridization or annealing. Hybridization can also be performed between a strand of DNA and a strand of RNA.DNA strands are always replicated in the same direction: 5\' to 3\'. The 5\' phosphate ends attach to the 3\' HO ends creating a phosphodiester bond. These bonds are what create the sugar-phosphate backbone to both DNA and RNA. By looking at the picture one can see the solid backbone created by the attachment of the phosphates (indicated by the orange circles). | |
| 59689. |
chapter 2 acid bases and salts answer for table 2.1 |
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| 59690. |
write any two point of difference between electric energy and electric power |
| Answer» Electrical power is the rate of amount of electrical energy transferred. Electrical energy is the energy generated as the result of the potential difference in a circuit which causes current to flow through it. | |
| 59691. |
What are functions of thyroxime |
| Answer» Thyroxine is the main hormone secreted into the bloodstream by the thyroid gland. It plays vital roles in digestion, heart and muscle function, brain development and maintenance of bones. | |
| 59692. |
How do plant transport water at night |
| Answer» Through xylem tissue | |
| 59693. |
What is peristaltic movement?? |
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Answer» The walls of oesophagus have muscles which can contract and expand alternatively. This movement is called peristaltic movement. The rythemic contrac and relaxation of food pipe inside alimentary canal is known as paristaltic movement. The rythemic contraction and relaxation of alimentary canal is know as peristaltic movement |
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| 59694. |
10th board ke liye sabse achha book kaun uai |
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Answer» Hindi Syllabus ,2019-20 Also Arihant last ten years board question paper of all subjects is also very helpful. You can practice that S.chand is very good Ncert and S. chand S chand is for science.Together with for English and Hindi.Exam idea for social science.RD Sharma and RS Agarwal for mathematics In NCERT every line is not explained Ncert +any refrance book.But ncert to be on tips?? Always!Ncert ...? NCERT ! S.chand is the best book for boards |
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| 59695. |
Cyclobutane structure |
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| 59696. |
How do living cells cleans up the waste material (include some technical points) |
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Answer» With the help of process ingestion . Ingestion |
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| 59697. |
List three method of producing magnetic field. |
| Answer» There are different types of methods available for producing the magnetic field, but three of them are given below.It includes;\tUse the permanent magnets\tCharge induced magnetic field\tUse the electromagnetThese are the three well-known and popular methods of producing magnetic field. When it comes to magnetic field, it is produced when the electric charge actually carries electrons.\xa0 | |
| 59698. |
What happened if field line is intersect to each other. |
| Answer» \tMagnetic field lined do not intersect each other because if there would be intersection between the magnetic fields then there would be two tangents which would represent two different distances.\tBut it is not possible practically to denote to two directions at the same time.\tThe magnetic fields would also come very close which is not possible. | |
| 59699. |
What is ecosystems |
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Answer» variety of flora and fauna in our surroundings All organisms such as plants, animals, microorganisms and human beings interact with the non-living physical surroundings in an area called as the ecosystem. Various examples of ecosystem are forests, ponds, gardens, crop fields. |
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| 59700. |
what is impulses |
| Answer» Impulse is the self propagated signal that runs along the nerve fibre to carry informations. | |