Saved Bookmarks
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.
| 49301. |
Why are control and coordinate |
| Answer» This chapter related to biology | |
| 49302. |
What is Decomposition reaction.?? |
|
Answer» Decomposition reaction is a process in which single reactant change in to a two reactant is called decomposition reaction. It is that type of chemical reaction in which one substances splits to form two new substance . for eg. AB------>A+B one compound make two substance The reaction in which single compound is broken into 2 or more simpler substances is called decomposition reaction. The reaction in which a single rectant decomposes into two or more products is termed as decomposition reaction .for ex-caco3-cao+co2 |
|
| 49303. |
Name some of the strongest bases..?? |
|
Answer» Sodium hydroxide and potassium hydroxide 1.Sodium hydroxide2. Pottassium hydroxide NaoH/KoH Common name caustic soda Naoh.... KOH, NaOH Naoh |
|
| 49304. |
Diffrence between dominant and recessive gene |
| Answer» 1. dominant gene is able to express itself even in presence of recessive gene2.it does not require another similar gene to produce a phenotype..{Tt}Recessive trait1.it is unable to express itself in the presence of dominant gene2. It requires another similar gene to make its phenotype... {tt} | |
| 49305. |
What is focul length |
|
Answer» Distance from P to PF Distance from pole to principal focus called focal length Distance from pole to principal focus is called focal length (f) of given mirror. |
|
| 49306. |
Name the device which converts eletrical energy into mechanical energy |
|
Answer» Electric motor is the device which converts electrical energy to mechanical energy Electric motor.... Electric motor The answer us electric motor Electric motor Electric motor Electric motor. |
|
| 49307. |
What is hawikings radiation? tell this ans intelligent |
|
Answer» Hawkings radiation is named after the scientist Stephen Hawking, is a black body radiation known that they are released by black holes due to the effects of quantum near horizon.. I have heard about Hawkings radiation. |
|
| 49308. |
What do you mean by 22 carat gold |
|
Answer» Right Sahil 22 carat gold means 22 parts of gold and 2 part of copper Hduu |
|
| 49309. |
Write down the five important Ph in everyday life explains |
|
Answer» Importance of PHin our everyday life are first ph in our digestive system second ph change as the cause of tooth decay third self defence by animals and plants through chemical warfare fourth plants and animls are ph sensitive fifth ph of soil for more information u can see in ncert book It helps in our digestive system Water , milk and many more 7 |
|
| 49310. |
What is SI unit of magnetic field lines |
|
Answer» Weber per second Tesla Tesla Tesla |
|
| 49311. |
What are respiratory substrates?give one example |
|
Answer» Welcome... Any other doubt Thnx Respiratory substrates are those organic substances which are oxidised during respiration to liberate energy inside the living cells. The common respiratory substrates are carbohydrates, proteins, fats and organic acids. The most common respiratory substrate is glucose. |
|
| 49312. |
"Carbon is considered as metalloid,but silicon is not considered metalloid.Why ? |
|
Answer» Wrong question And silicon is metalloid. No, carbon isn\'t considered as metalloid, it\'s a non - metal. |
|
| 49313. |
What is joule \'s law? |
|
Answer» And you yoy ankit where are you from I am from modinagar. Where are u from renu Kk renu or kch hoo toh btana mjhe me dekh lunga toh aapki help krunga Ok ankit Wlcm renu Me....... Iam from agra.... Ohh thank you payal. Where are you frome Sister? Thanks ankit Kar diya click thanks par. Nhi mene mna kab kha ki hum sis nhi hhj bilkul hhh According to joule Law,"It states that the heat produced in a resistor is:(a) Directly proportional to square of current(b) Directly proportional to resistence for a given current(c) Directly proportional to time for which current flows through the conductor.I hope this is help u? Wlcm renu par thanks thanks par click karka kar sakta ho aap Kyo payal aap sister nahi ho Kya? Thanks prince Thanks sahil Heat produced on passing current through a conductor is directly proportional to the (i)current passing through the conductor, (ii)resistance of the conductor ,and (iii)time for which the current is passed through the conductor. Sister** When a current I flow through a resistor R the heat produce H depend directly on the square of current, ressistance and the time T which is current is allowed to pass through H =I^2RT Welcome suster Thanks sister. JOULES HEATING LAW ....... Joule\'s law of heating states that when a current \'i \' passes through a conductor of resistance \'r\' for time \'t\' then the heat developed in the conductor is equal to the product of the square of the current, the resistance and time....... Hope u understand |
|
| 49314. |
Anyone is on.... Lets play ask and answer of science okkk |
|
Answer» Okk next question will ask aadya.... Ask... Okk You are also wtong muskan Yes aadya is right caustic soda ...... NaOH (sodium hydroxide) Kya hua koi to batao... Other wise all score 0 Caustic soda Common name not the chemical name... Ankesh u score a big 0........ Sodium hydroxide Batao koi.... Kya hh answer iss ka... ya h r u Common name of naoh... Most simple question Ok we are ready Okk me puchrt hoo Who will be start asking Ohhh rahul hii dude after many days... tum log mujhe bhul to ni gaye Payal aap pucho question Start Yes hello payal Okk ask.... Ohh thanks..... Yes No one is here.... ?? |
|
| 49315. |
What are aqueous solution |
|
Answer» Ye kiski id hhh rahu..... @.... An aqueous solution is a solution in which the solvent is water. ... For example, a solution of table salt, or sodium chloride (NaCl), in water would be represented as Na+(aq) + Cl−(aq). The word aqueous (comes from aqua) means pertaining to, related to, similar to, or dissolved in, water. Aqueous solution is a solution in which the solvent in water. For example Acids and Bases are aqueous solution. An aqueous solution is a solution in which the solvent is water. It is mostly shown in chemical equations by appending (aq) to the relevant chemical formula. For example, a solution of table salt, or sodium chloride (NaCl), in water would be represented as Na+(aq) + Cl−(aq). The word aqueous (comes from aqua) means pertaining to, related to, similar to, or dissolved in, water. A solution in which the solvent is water is called aqueous solution. |
|
| 49316. |
What is fossil fuels? what are the disadvantages ? |
|
Answer» 1 Contribute to Global Warming. Fossil fuels are not green sources of energy. ...2 Non-Renewable. Fossil fuels are non-renewable energy sources. ...3 Unsustainable. We are spending our fossil fuel reserves in a non-sustainable manner. ...4 Incentivized. ...5 Accidents Happen. Fossil fuel, any of a class of hydrocarbon-containing materials of biological origin occurring within Earth’s crust that can be used as a source of energy. 3) It produces a large amount of carbon dioxide into air, which is very harmful for us. Disadvantages of fossil fuels: Burning of fossil fuels produce gaseswhich cause global warming like carbon dioxide. Burning of coal and petroleum cause air pollution due to the pollutants produced. Fossil fuels release oxides of carbon, sulphur and nitrogen etc. 2) The burning of fossil fuels produces smoke which pollutes the air. Fossil fuel is a general term for buried combustible geologic deposits of organic materials, formed from decayed plants and animals that have been converted to crude oil, coal, natural gas, or heavy oils by exposure to heat and pressure in the earth\'s crust over hundreds of millions of years. Disadvantages - The burning of fossil fuels produce acidic gases such as sulphur dioxide and nitrogen dioxides. These acidic gases cause acid rains. A natural fuel formed deep under the earth from the pre- historic remains of living organisms is called fossil fuels. |
|
| 49317. |
How can we say tha acids giveH+ ions in aqueous solution |
| Answer» An acid produces hydrogen ions in solution because it reacts with the water molecules by giving a proton to them. When hydrogen chloride gas dissolves in water to produce hydrochloric acid, the hydrogen chloride molecule gives a proton (a hydrogen ion) to a water molecule. | |
| 49318. |
What is short circuting? |
|
Answer» AbeJab kala wireLal wire ke sath suddenlyAttached then short circuit happened Where are u from? Ok ankit Wlcm and any problem u ask me Thanks. For helping me.thank you. When live wire come in contact with neutral wire accidently |
|
| 49319. |
What is meant by rancidity |
|
Answer» Rancidity the spoiling of food (fats and oil containing) due to oxidation reaction and as a result food produce unpleasant smell and its taste change is known as the rancidity. When the oil and fats (presnt in food ),react with oxygen .And resulting a bad smell and taste... Is called as rancidity It is process of slow oxidation of oil and fat ( which are volatile in nature) present in food material resulting in the change of smell and taste in them know as rancidity The oxidation of fats and oils present in food. Resulting into bad smell and bad taste is known as rancidity Rancidity is very general term and its most general meaning it refer to the spoilage of food in such a way that it becomes undesirable for consumption |
|
| 49320. |
Name an enzyme present in pancreatic juice |
|
Answer» Thanks dear frnd Pancreatic amylase Trypsin, Amylase and lipase |
|
| 49321. |
To study the focal length of concave mirror |
| Answer» The concav mirror form the image at the focal length when object at infinite so bring the mirror at any open place and place it in the direction of sun and place a cardboard in feont of mirror and bring closer and closer when ever you get the clear patch of a small circle we get the focus point of the mirror .Measure the distance from this point to the mirror we get the focal length of the mirror. | |
| 49322. |
What is the definition of magnetic field |
|
Answer» The area or region alongwhich magnet exert the magentic force is known as the magnetic field The space surrounded by a magnet which exert force is called as magnetic field Space surrounded by magnet where magnetic forces are exerted The space surrounding a magnet in which magnet force is exerted is called magnetic field A region around/surrounded by a moving electric charge or a magnetic material within which the force of magnetism acts.\tSymbolB or HUnitTelsaBase unit(Newton.Second)/Coulomb\t |
|
| 49323. |
What physical and chemical properties did mendeleev considered while creating his periodic table? |
| Answer» | |
| 49324. |
In dihybrid inheritance what is the genotype ratio in parental generation |
| Answer» 9:3:3:1 | |
| 49325. |
Board ke liye study kayse kare. Plz give some trick.?? |
|
Answer» Follow Proper time table.Strictly follow NCERT. Work hard on your weak subjects.Atleast study 4-5 hrs in a day. Concept clear kro then ncert ke bharose mt rhna guarantee nhi ki paper books se hi aayega cbse n khud kha h Don\'t take tension study daily make target of 30 or 40 to complete your all sallabus and revise it 2-3 times . Study science,sst and maths daily. Bhai mei aapko ek tarika btara hoon aapko agar maths or science me ache number lane h toh aap dono pahle ncert + support material krlo pakka dono mei top karuge yeh meri gurranty h or baaki hindi , sst toh hion jayege or roz padhe chahe 1 page register ka bharo aapne aap me satisfaction milegi ki yrr aaj mei padha hoon chahe maine 1 page hi bhara lekin aaj maine kch kra h toh aaise padh skte h Board ke liye zyada toh ni bata skti pr..regular study kro aap..beech me break lo pr sure raho bht zyada lamba break mat lo..sample papers solve kro..ncert full syllabus kum se kum 2 times revise ho apka..tension free hoke padho.. Pahle to sabse pahle aap time table bana lo Monday Tuesday Wednesday kya padhna had aur Thursday Friday Saturday kya padhna hai Sunday ko pura revision jo bhi pure weeks me padha ho |
|
| 49326. |
What is difference between electronic configuration and valency |
|
Answer» Electronic configuration of an atom is the number of electrons divided in the required shells.......And valecy of a atom is the number of electrons need to be gained or lossed by it for being stable. No. of electrons present in an atom is known as its electronic configuration. Whereas, the electrons present in the outermost shell of an atom is its valency/valence electrons. the electronic configuration is the no. Of electrons present in an atom.Valency : the electrons present in the outermost shell of the atom is called valence electrons. Give me ans |
|
| 49327. |
Can anyone explain me what is polar stratospheric clouds?? |
|
Answer» Ohh thankyou so much It is cloud at altitude of 15000-25000m |
|
| 49328. |
What should we be assessed in portfolio? |
| Answer» A portfolio assessment can be an examination of student selections samples of work experience and documents related to out comes being assessed ,and It can address and support progress towards achieving academic goals ,including students efficacy | |
| 49329. |
What is difference between far point and near point in tabular form |
|
Answer» Near point of a normal eye is 25 cm whereas far point of normal eye is infinity. The least distance at which the eye can see the object clearly is called near point. The maximum distance at which we can see the object clearly is called far point. |
|
| 49330. |
Atomicity of all elements of ch-3 |
| Answer» | |
| 49331. |
What are radioactive substances? |
|
Answer» Radioactive substance are atoms that destroy naturally. They give alpha Particle, gamma particle and beta particle and alpha particle a great deal of potential to couse harmful Radioactive substance is unstable and produces dangerous kinds of radiation. It goes into the radiation that is produced Radioactive substances are atoms that decay naturally. They can give off alpha particles, gamma particles and beta particles ...However, alpha particles jave a great deal of potential to cause harm |
|
| 49332. |
Give me electronic Confrugation of elements whose atomic number are between 20 to 30. |
|
Answer» 21=2,8,8,322=2,8,8,423=2,8,8,524=2,8,8,625=2,8,8,726=2,8,8,827=2,8,8,128=2,8,8,8,229=2,8,8,8,3 29=2,8,8,8,3 28=2,8,8,8,2 27=2,8,8,8,1 26=2,8,8,8 25=2,8,8,7 24=2,8,8,6 23=2,8,8,5 22 = 2, 8,8,4 21 = 2,8,8,3 |
|
| 49333. |
What is second law of inheritance? |
| Answer» Mendel\'s second law is also known as the law of independent assortment. It states that the allales of one gene sort into the gametes independently of the alleles of another gene. | |
| 49334. |
What is hybrid? |
|
Answer» An animal or a plant that has parents of two different types (species). It is an organism derived from cross between 2 genetically different organisms. |
|
| 49335. |
Define boasting with example |
|
Answer» Example: 2ZnS+3O2---->2ZnO+2SO2 Roasting is the process in which a sulphide ore is heated below its melting point in the presence of excess air to convert it into metal oxide. Boasting ya roasting |
|
| 49336. |
Where is glucagon secreted?what is it function? |
| Answer» Glucagon is secreted by alpha cells in the islets of Langerhans in the tail of the pancreas. Low glucose levels in the blood are detected by alpha cells, stimulating the release of glucagon. Like insulin, this undergoes margination and exocytosis to be released. | |
| 49337. |
What is ovam and sperm |
| Answer» The female gamete which takes part in fertilization is called \' Ovum\'. The male gamete is called \'Sperm\' | |
| 49338. |
How would you name the following compound |
| Answer» Which one?? | |
| 49339. |
Electronot structure of chloro methane |
| Answer» | |
| 49340. |
What is mating |
| Answer» Mating is the act of pairing of a male and female animal for reproductive purposes. | |
| 49341. |
Why we get nerves |
| Answer» Nerves help in transporting materials and circulating blood in our body. | |
| 49342. |
What is over loading of a short circuit |
| Answer» Overloading:If the current flowing through the various instruments connected to a single supply, it draws more current. If the current drawn is more than the maximum current rating it gets overloaded. | |
| 49343. |
Which is the largest cell in human body |
| Answer» Nerve cell | |
| 49344. |
Chapter 7 notes |
| Answer» | |
| 49345. |
What is a biogeochemical cycle? |
| Answer» The cycling of chemicals between the biological and the geological world is called biogeochemical cycle.The biotic and abiotic components of the biosphere constantly interact through biogeochemical cycles. During these interactions, there is a transfer of nutrients between living organisms and the non-living environment.\xa0The four important biogeochemical cycles are water cycle, nitrogen cycle, carbon cycle and oxygen cycle. | |
| 49346. |
What is saturated and unsaturated |
|
Answer» The hydocarbons in which atleast one double or triple bond is present alongwith single bonds are called unsaturated compounds. They are divided into 2 classes: alkenes or olefins and alkynes. The hydrocarbons in which all the carbon atoms are linked by only single covalent bonds are saturated hydocarbons. The general formula for these compounds is CnH2n+2 where n= no. of carbon atoms in one molecule of a hydrocarbon. |
|
| 49347. |
Discovery of cell |
| Answer» The cell was first discovered by Robert Hooke using a microscope and the first cell theory is given by Schleiden and Schwann.. | |
| 49348. |
Name one simple optical instrument in which the above arrangement of convex lens is used. |
| Answer» A camera works on the above arrangement Bcoz the camera lens produce a small , real and inverted image of an object on the film | |
| 49349. |
List two differences between real and virtual images |
|
Answer» A real image formed when the light ray coming from an object actually meet at a point after a reflection from the mirror whereas virtual image formed when the light rays coming from an object appear to meet at a point when produced backwards ( but actually do not meet) after reflection from a mirror. Real image can be formed on screen whereas virtual image can\'t be formed on screen. |
|
| 49350. |
How to make score in science? |
| Answer» | |