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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.
| 62251. |
Why the light travels in straight path? |
| Answer» Light travels in the straight line because it does not generally interact with the medium and wherever it interacts it does change its path like when it is entering a different medium with different permeability and permittivity(denser or rarer). This interaction and bending of light is called refraction. | |
| 62252. |
Write five uses of Acid.? |
| Answer» \xa0(i) Boric acid may be used as a disinfectant or pesticide.(ii) Citric acid is widely used as a flavoring and acidifier in food.(iii) Hydrochloric acid has many industrial and lab uses.(iv) Nitric acid is used to make explosives and inks and as a strong oxidizer for industrial and lab use.(v) Phosphoric acid is a mineral acid used in home cleaning products, as a chemical reagent, as a rust inhibitor, and as a dental etchant. | |
| 62253. |
What is nerve system explain |
| Answer» | |
| 62254. |
What is hitting effect? |
| Answer» When electric current is supplied to a purely resistive conductor, the energy of electric current is dissipated entirely in the form of heat and as a result, resistor gets heated. The heating of resistor because of dissipation of electrical energy is commonly known as Heating Effect of Electric Current. For example : When electric energy is supplied to an electric bulb, the filament gets heated because of which it gives light. The heating of electric bulb happens because of heating effect of electric current. | |
| 62255. |
Why are fluorescent tubes used instead of electric bulbs ? |
| Answer» They consume more voltage | |
| 62256. |
Difference between alkali and base |
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Answer» Alkalie are water soluble base. Water soluble bases are called alkalisAll alkalis are bases but all bases are not alkalis Alkali is a solublr Base is a bitter and alkali i dont know |
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| 62257. |
Why we feel hunger at specific time? |
| Answer» Without glucose | |
| 62258. |
Why zinc is used in the galvanization of iron and not copper |
| Answer» Zinc is more reactive than iron, it is used to protect it from corrosion because when oxygen in the air reacts with the surface of zinc, a very dense and impermeable coating of zinc oxide is formed and it is this physical barrier that protects the zinc surface from further attack.Copper is a less reactive metal and it is difficult to form alloys with iron and go on a separate layer. Therefore it is not used for galvanization. | |
| 62259. |
What happen when quicklime added to water |
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Answer» Produce slake lime Slake lime produces |
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| 62260. |
When does the current flow in an electric circuit? |
| Answer» When you apply potential differences | |
| 62261. |
NaOH+Zn gives what? |
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Answer» NaOH +Zn gives Na2ZnO2 + H2As acid + matal gives salt +Hydrogen gas Znoh + na |
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| 62262. |
What happens when a wasp stings? |
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Answer» Wasp sting actually contains base not acid When a wasp stings it discharges an acid mostly formic acid in our body,which produces itching effect and swelling. |
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| 62263. |
Distinguished between balanced equation and skeletal equation |
| Answer» Skeletal: an unbalanced chemical equation written in the form of symbol and formula is called skeletal chemical equation example: Mg+O2-----MgOBalanced: a chemical equation having equal number of atoms in reactants and product is called balanced chemical equationExample: 2Mg+O2------2MgO | |
| 62264. |
Human elementary canal |
| Answer» The\xa0alimentary canal\xa0is a long tube which runs from the mouth to the ****. It is part of the digestive system. The\xa0digestive system\xa0also includes the\xa0liver\xa0and the\xa0pancreas.Main regions of the alimentary canal and associated organs are:\tMouth, salivary glands\tOesophagus\tStomach\tPancreas, liver, gall bladder\tSmall intestine (duodenum + ileum)\tLarge intestine (colon +rectum)\t****. | |
| 62265. |
Parts of flower |
| Answer» Itna bhi nai pata to 10 me kyun pad Rahe ho | |
| 62266. |
What is periodical classifican? |
| Answer» | |
| 62267. |
What do you mean by resistance |
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Answer» The opposition offered by the material to the flow of current through it A property of the material to resest a flow of charge is called as resistance |
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| 62268. |
Give definition of1.cutting2.layering3.grafting |
| Answer» 1) Cutting: A small part of a plant which is removed by making a cut with a knife is called cutting. A cutting may be a piece of stem, root or even to a leaf. Eg: Rose, Bougainvillia, Sugarcane, Banana, etc.2) Layering: In Layering a branch of the plant with at least one node is bent towards the ground and a part of it is covered with moist soil leaving the tip of the branch exposed above the ground.After sometime, new roots develop from the part of the branch buried in the soil. The branch is then cut off from the parent plant. Eg: Nerium, Hibiscus.3) Grafting: In grafting two plants are joined together in such a way that two stems join and grow as a single plant. Eg : Mango, Citrus, Apple, Rose, etc. | |
| 62269. |
Derive expression of Resistance in parallel combination |
| Answer» | |
| 62270. |
How does brushing of our teeth help to stop tooth decay?? |
| Answer» Brushing of our teeth prevents tooth decay because our tooth starts decaying if the ph is below 5.5 .So we brush our teeth using tooth paste which is basic in nature and maintains ph level aporox 5.5. | |
| 62271. |
What is assent of sap |
| Answer» Ascent of sap in the xylem tissue of plants is the upward movement of water and mineral from the root to the crown. | |
| 62272. |
How tin plating and chromium plating prevent corrosion? |
| Answer» Preventing corrosion by tinning------------> Tin is not attacked by air and water.tin is non toxic.so the containers used in packaging of food items are coated with tin to prevent corrosion........... ................. ....................... Preventing corrosion by chromium plating->. Metals like chromium doesn\'t corrode.so corrosion can be prevented by electroplating chromium on the substance.it makes it decorative | |
| 62273. |
Write one structural different between the composition of artery and veins |
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Answer» Arteries are thick walled and veins are thin walled They can attract each other Complexion |
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| 62274. |
What are kuffer cells? |
| Answer» Kupffer cells are the specialized macrophages located in the liver, particularly at the lining of liver sinusoids. They are part of the mononuclear phagocyte system. Their name is derived from Karl Wilhelm von Kupffer, a German anatomist who was the first to describe them in 1876. The Kupffer cells originate from bone marrow stem cells and migrate to the liver via the bloodstream as monocytes. | |
| 62275. |
Hiw i m learn atomic for make a new compound |
| Answer» | |
| 62276. |
Eletricity |
| Answer» | |
| 62277. |
What is the name of the fluid present in mening |
| Answer» Cerebro | |
| 62278. |
2 appliances based on heating effect of current ? |
| Answer» Electric bulb, electric heater and fuse.. | |
| 62279. |
How can we save our environment by good steps taken toward extra usage of electricity ? |
| Answer» Check every thing run on electricity after every 30 min and switch off the things which you dont need at that time or you can made an electricity generator. | |
| 62280. |
Layout of domestic circuit ? |
| Answer» | |
| 62281. |
2 application on heating effect of current? |
| Answer» Electric Bulb: In an electric bulb, the filament of bulb gives light because of heating effect of electricity. The filament of bulb is generally made of tungsten metal; having melting point equal to 3380°C.Electric iron: The element of electric iron is made of alloys having high melting point. Electric heater and geyser work on the same mechanism.Electric fuse: Electric fuse is used to protect the electric appliances from high voltage; if any. Electric fuse is made of metal or alloy of metals, such as aluminium, copper, iron, lead, etc. In the case of flow of higher voltage than specified, fuse wire melts and protects the electric appliances. | |
| 62282. |
5 methods to reduce electricity bill? |
| Answer» \tUse More Energy-efficient Appliances\tChange Your Light Bulbs with CFL.\tUse Fans for Cooling and reducing the need for air conditioning.\tCooling the whole house can be expensive. Where possible, shut doors to areas you are not using and only cool the rooms you spend the most time in.\tTurn heaters and coolers off when you don\'t need them | |
| 62283. |
Structure of mitochondria |
| Answer» Contact with class 9 science book.. | |
| 62284. |
What do you mean by endothermic reaction |
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Answer» Heat ,light or any other form of energy is absorbed in this type of reaction Reaction in which energy (heat) is absorbed |
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| 62285. |
Diference between dilute HCl and HCl |
| Answer» | |
| 62286. |
What is fermentation of food? |
| Answer» It is the process of conversion of carbohydrates into alcohol or organic acid by using micro organism | |
| 62287. |
What is external respiration |
| Answer» | |
| 62288. |
What is soneloid |
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Answer» Koi ek metal rod h usme wire ko wounde kar do usi ko solenoid khte h this is very important topic Solenoid hota h |
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| 62289. |
What change will take place in the pH of an acid if you go on adding alkali to it? |
| Answer» | |
| 62290. |
What is the fullform of NADPH |
| Answer» Nicotinamide Adenine Dinucleotide Phosphate | |
| 62291. |
Write physical properties of metal |
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Answer» Metals are malleable, ductile, lusturoud,hard,good conductor of heat and electricity and have high tensile strength. They are lustures,sonorous,hard,shineyetv |
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| 62292. |
What is organic food |
| Answer» | |
| 62293. |
Define globalization |
| Answer» Globalisation means the interconnections in economic activities, trade and business that have led to the integration of manufacturing processes and markets around the different economies of the world. It is a process that is an offshoot of the liberalisation of previously closed national economies and opening them up to international manufacturers. Domestic companies are very often pitted against multi national corporations as a result of this. Reduction of trade barriers like tariffs, import duties and licensing quotas have hastened this process by fuelling capital and investment movements. It has led to demand for skilled labour. It has manifested itself culturally as well through the circulation of ideas. Dissemination of knowledge and technology is another important aspect of globalisation. | |
| 62294. |
Why the require voltage could not be obtained with high resistive material wire |
| Answer» | |
| 62295. |
Function of pepsin? |
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Answer» pepsin convert polypeptideds into di-peptides(peptones + proteoses) Pepsin is a digestive enzyme secreted by the chief cells in the stomach in its inactive form called as pepsinogen.It gets activated to pepsin in the presence of HCl. Proteins are converted into peptides by the action of pepsin. It is the active form of pepsinogen that digests protien. |
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| 62296. |
Change the unbalanced to balance e.g Pcl5+H2O-H3PO4+Hcl |
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Answer» Tnx pcl5+4h2o----h3po4+5hcl |
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| 62297. |
Previous 10 year question with answer of nutrition |
| Answer» | |
| 62298. |
Cbse topper ko kitne time padhna chahiyeAur kitne time sona chahiye |
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Answer» 6 hour 6hrs study and 6hrs sleep |
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| 62299. |
Cbse topper ban ne k liye kya time table follow karna chahiye ? |
| Answer» | |
| 62300. |
Can any one tell me the syllabus of 2019 board exams |
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Answer» Kya change hua h hindi me Syllabus bhai hindi me chage hua hai bas |
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