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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.
| 56201. |
Cleaning action of soaps |
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Answer» The dirt present on clothes is organic in nature and insoluble in water therefore it cannot be removed by only washing with water when soap is dissolved in water its hydrophobic ends attach themselves to the dirt and remove it from the cloth then the molecules of soap arrange themselves in micelle formation and trap the dirt at the centre of the cluster these micelles remain suspended in water hence the dust particles are easily rinsed away by water Master Manish this is your questions answer In cleaning action of soaps the carbon chain dissolves in oil and ionic end dissolves in water |
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| 56202. |
Functional group ketone |
| Answer» Ketone belongs to carbonyl group | |
| 56203. |
Female reproductive organs diagrem |
| Answer» | |
| 56204. |
What type of question can ask in anthe exam |
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Answer» Answers will be easy but questions may be indirect It cn be on the basis of concept clearing.....or remembering facts....... |
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| 56205. |
What you mean by the term gene |
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Answer» A unit of DNA on a chromosome which controls the expression of character in a organism A unit of heredity which is transferred from parent to offspring and is held to determine some characteristics of the offspring. |
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| 56206. |
How sperm ezaklete |
| Answer» You sucking | |
| 56207. |
Sewa project kya hai? |
| Answer» Hey !!! In sewa project you have to help poor children by teaching them and you can help poor people by giving them anything to eat mainly you should take photograph with them for the proof because the proof is important....... You can go to any orphanage and spend time with children by playing or teaching them ......... | |
| 56208. |
alkynes structure and formula |
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Answer» CnH2n-2 Formula is.....Cn H2n-2 |
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| 56209. |
What happens at the synapse between two neuron? |
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Answer» Synapse is a junction point of the axon of preceeding neuron and dendrites of next neuron.the two neurons are not in direct contact with each other instead there is asmall microscopic gap between them. The impulses release some chemicals called neurotransmitterswhich travel through the gap and is acquired by the next neuron. Thos gap ensures unidirectional flow of information There takes the transmission of electric impulse in the form of chemicals after bursting of synapse vesicles |
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| 56210. |
What do you mean by Khalifat movement ?what are the impacts of Khalifat movement? |
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Answer» 1.Turkey was under ottoman empire .2.The ruler of Turkey was called Khalifa. 3.He was the spiritual leader of Muslims all around the world. 4.Britain defeated Turkey in world war. 5.Britain removed the existing Khalifa and appointed a new Khalifa in his place. 6.It caused the widespread anger among the Muslims all around the world. 7.In India also Muslims started protesting against the British forming khalifat committee under the leadership of Muhammad Ali and shaukat ali. 8.Gandhiji saw this as a golden opportunity to bring all Muslims under the unified umbrella of struggle against British. 9.Gandhiji convinced all Congress leader to support Khalifat movement in support of the sawaraj. \tIt was a movement started by the Ali brothers, Shaukat Ali and Mohammad Ali.\tIt was started to show their allegiance to the spiritual head of the Ottoman Empire, Khalifa.\tTo save Khalifa, who was deposed by the British after the World War I, a Khilafat Committee was formed in India.Positive Impact of Khilafat movement:\tIt units the Hindus and Muslims and realise them what they were and what they will, if they follow the British rule.\tIt makes the unity strongs.Negative Impact of Khilafat movement:\tIT makes them to burn all the things. |
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| 56211. |
What is the need of DNA variation in an organisms |
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Answer» There is need of DNA variation in an organisms for continuing of life according to environmental change. When their is variation than only organism have different features and differdnt face. |
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| 56212. |
Copying of DNA is accompanied by the creation of an additional cellular apparatus.why ???? ???? |
| Answer» For the survival and protection of dna , additional cellular apparatus is required | |
| 56213. |
Name the constitutents of biogas |
| Answer» Biogas comprises primarily methane (CH4) and carbon dioxide (CO2) and may have small amounts of hydrogen sulphide (H2S), moisture and siloxanes. | |
| 56214. |
Need and importance of variation in humans. |
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Answer» They make an organism better fitted to struggle for existence in a particular environment.They also enable human beings to improve the races of imprtant plants and animals. Hi baby |
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| 56215. |
How are double circulation |
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Answer» Double circulation means two times circulstion of blood in wn organisum.it happens on human body as we have two chamber heart . Double circulation is twice circulation |
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| 56216. |
Formula for 2,2 dimethylpentane |
| Answer» | |
| 56217. |
Father of modern science |
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Answer» Galileo Galilei has been called \'the Father of Modern Science\' Galileo galileo..... |
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| 56218. |
What is sodium carbonate |
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Answer» Sodium carbonate is a chemical compound in the form of white crystals or powder that is used in making glass, soap and paper, and for making hard water soft Its washing powder & famula is NA2CO3 Sodium carbonate :- The chemical formula of sodium carbonate is Na2CO3.10 H20. It is also known as \'washing soda\'. When sodium bicarbonate (NaHCO3) is heated then it forms as a product of sodium bicarbonate. And then 10 molecules of water are added in it to get NaCO3.10H2O. USES :- 1) Sodium carbonate is used in glass,soap and paper industries. 2) It can be used as cleaning agent for domestic purposes...... Hope it will help you☺☺☺ Sodium carbonate , formula = Na2CO3 |
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| 56219. |
how is scum formed |
| Answer» Soap does not give foam with hard water due to the formation of scum. The scum is formed by the reaction of soap with calcium and magnesium salts present in hard water. Scum is an insoluble precipitate of calcium and magnesium salts of fatty acids formed by the reaction of soap with hard water.\xa0Soap + Hard water → Calcium salt + Magnesium salt | |
| 56220. |
Difference between mound layering and air layering |
| Answer» Aerial layering:1. A healthy branch of the plant is selected, and a girdle is made just below a node.2. The girdle portion is covered with moist moss plants, cotton or polythene sheet to prevent evaporation of moisture.3. An earthen pot with a hole at the bottom is hung from a branch above it to ensure a continuous supply of water.4. This portion is then left undisturbed till adventitious roots appear from above the girdled area.5. When healthy roots appear through the polythene sheet, the layered shoot is separated from the mother plant.Examples: Croton, climbing rose, guava, orange, litchiGround/Mound layering:1. A branch near the ground is bent downwards so that it touches the soil.2. Under a node on the basal side, a cut is made to form a tongue.3. With the help of a small piece of wood, the two cut parts are kept apart.4. The tongue part is then covered with soil some distance from the tip.5. A stone is placed on the layered portion in position or it is covered with soil.6. Water is provided whenever required.7. After few days, the part that is under the soil develops roots. The layered part can then be separated from the parent plant and grown separately.Examples: Ipomea, rose, jasmine, mango, litchi, grapevine | |
| 56221. |
Last year previous pre bord question paper 2016to 2017 |
| Answer» Search on the net | |
| 56222. |
About ions |
| Answer» Ions is an atom or group of atoms which is electrically charged | |
| 56223. |
What is cinnabar ? How is metal extracted from cinnabar? Explain briefly |
| Answer» Cinnabar is an ore of mercury. and its chemical formulla is (HgS).When (HgS)is heated in air it converted into mercury oxide (Hgo).and then we heat Mercury oxide which reduced to mercury | |
| 56224. |
Define Snell\'s law . |
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Answer» A snell law is a law stating that the ratio of the sines of the angles of incidence and refraction of a wave are constant when it passes between two given media. According to Snell’s law, The ratio of the sine of the angle of incidence to the sine of angle of refraction for a given pair of media is constant. This constant is called refractive index (n) of second medium with respect to first medium.Marthematical expression for Snell\'s law is,sini/sinr = n |
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| 56225. |
Advantage or dis advantage of bariar method or chemical method for birth control |
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Answer» It prevent std,Aids,etc It prevents std |
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| 56226. |
Explain menistreal cycle day by day |
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Answer» The menstrual cycle is the hormonal driven cycle; day 1 is the first day of your period (bleeding) while day 14 is the approximate day you ovulate and if an egg is not fertilized, hormone levels eventually drop and at about day 25; the egg begins to dissolve and the cycle begins again with the period at about day 30. Any one know Period |
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| 56227. |
What is functional group .?how many types of functional group. |
| Answer» Each type of organic molecule has its own specific type of functional group. Functional groups in biological molecules play an important role in the formation of molecules like DNA, proteins, carbohydrates, and lipids. Functional groups include: hydroxyl, methyl, carbonyl, carboxyl, amino, phosphate, and sulfhydryl. | |
| 56228. |
What is alkyl group? Name |
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Answer» Thx Group of hydrocarbons obtained by eliminating one hydrogen from normal alkane homologous seriesEg:ethyl-C2H5,methyl-CH3 Group1 |
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| 56229. |
Which type of asexual mode of reproduction occurs in hydra plant. 1)budding. 2)regeneration |
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Answer» Budding Budding Budding |
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| 56230. |
What will be the next homologue of CH3OH and CH3CHO?? |
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Answer» Thx C2H5OH and C2H5CHO |
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| 56231. |
A converging lens has a focalength of 50mm what is the power of the lens |
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Answer» The power of lens is 20 D. 20 dioptre 100mm |
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| 56232. |
Why is the necessary to keep the leaf peel in water |
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Answer» Leaf are necessary to keep the leaf peel in water because in leaf peel stomata was present in leaf peel for continue the opening of stomata which we can easily observe stomata Why is the necessary to keep the leaf filling water |
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| 56233. |
Provide me most contant of carbon and its compound |
| Answer» | |
| 56234. |
Why is digestion called a catabolic process |
| Answer» Catabolism is the degradative processes of metabolism. It concerned with the breakdown of complex food molecules to simple ones, with a concomitant release of free energy. For example, carbohydrates are complex molecules, breakdown into simple molecules of carbon dioxide and water with concomitant release free energy as a form of ATP through a series of catabolic reactions. Respiration involves the oxidation carbohydrates, proteins and fats etc to release energy. Since bonds in these substances are broken down to release energy, respiration is considered as a catabolic process. | |
| 56235. |
"Two areas of study namely evolution and classification are interlinked".justify this statement |
| Answer» Evolution leads to classification.As and when the organism of a particular species start evolving, i.e. evolution in physiological structure then the start to appear different as compared to their parents generation and thus they are taken or kept into different class. Hence classification will only take place when evolution in organism is seen.. | |
| 56236. |
How do organisms reproduce prectical |
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| 56237. |
What for the Flemings left hand rule is used |
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Answer» \xa0According to Fleming’s left hand rule if we stretch the thumb, the centre finger and the middle finger of our left hand such that they are mutually perpendicular to each other. If the centre finger gives the direction of current and middle finger points in the direction of magnetic field then the thumb points towards the direction of the force or motion of the conductor.The principle of an electric motor is based on the magnetic effect of electric current. A current-carrying loop experiences a force and rotates when placed in a magnetic field. The direction of rotation of the loop is according to the Fleming’s left-hand rule. In the case of current carrying conductor. |
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| 56238. |
What is SI unit of magnetic field derive it |
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Answer» I know thats tesla but i need the derivation Tesla. |
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| 56239. |
Name the process in which gain of electrons takes place? |
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Answer» Oxidation Reduction Reduction Endothermic process Endothermic process |
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| 56240. |
Why is it necessary to keep the leaf peel in water (The process of observing stomata |
| Answer» It should not wrinkled and should be alive | |
| 56241. |
Why iron doesn\'t but iron fillings burn vigorously when sprinkled in the Flame of the burner? |
| Answer» | |
| 56242. |
exothermicreaction |
| Answer» The reaction in which heat is evolved during reaction | |
| 56243. |
Formula for finding atomicity of an element |
| Answer» Atomicity of element=molecular mass of that element/atomic mass of that element | |
| 56244. |
Which type of compound are indicator ?acid,base or salt |
| Answer» Salt | |
| 56245. |
what is cloro alkali process |
| Answer» Hii roshan here\'s the answer .......When electricity is passed through an aqueous solution of sodium chloride called brine it decomposes to form sodium hydroxide this process is called Chloe alkali process because of. the products formed Chlor for chlorine and alkali for sodium hydroxide the equation: 2nacl (aq)+2h20gives 2naoh aq +cl2+h2........hope it will help you ☺✌ | |
| 56246. |
Galvanised article is protected even if zinc coating is broken. Why? |
| Answer» | |
| 56247. |
How many times does AC used in India change direction in one cycle? |
| Answer» 50 hz | |
| 56248. |
What is the commercial unit of electrical energy ? Represent it in terms of joules. |
| Answer» Kilo watt hour | |
| 56249. |
How energy transfer in tropic level |
| Answer» One percent of Sunlight is absorbed by plants and then ten percent of energy is transferred to the tropic levels at every step | |
| 56250. |
what is hotspot |
| Answer» It is a temperoray network created between two moblies or computers system by using their ip adress and wifi codes | |