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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.
| 53151. |
What is compass needle? |
| Answer» A compass needle is a small bar magnet that is connected to a needle which help in depicting a direction | |
| 53152. |
How does a windmill help in generating electricity? |
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Answer» Sorry, i am doing a mistake in first line winf it not winf it is a wind This done by using a large winf turbines usually consisting of propellers the turbines can be connected to the generator to generate electricity. A windmill stores , the energy produced in the large batteries ,, which is then transported to Transformers.......... |
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| 53153. |
Give advantage and disadvantage of constructing dams |
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Answer» Advantages 1.the dams are used in hydroelectric power generation.2.it is useful in storing rain water for future irrigation purpose for up coming crops.3.it may be a source of tourism or a route for crossing river in short time taken than the usual roads .Disadvantages1.a dam require a large area to be constructed which could effect the rural people life and their agriculture.2.it requires more energy, labour and resources to be constructed.3.it can cause flood it water level rise up to the tolerance level which could be more devasting than natural Advantage::They are of great use during draught..DISADVANTAGE::They causes Flood during heavy rainfalls |
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| 53154. |
State the role of calcium chloride in above activity |
| Answer» The role calcium chloride is to be absorb water from moisture present in atmosphere | |
| 53155. |
What is decompostion |
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Answer» Breaking down of substance into two molecular products is termed as decomposition Decomposition reaction is one substans break down in two or more substans than product two substance. A reaction in which single reactanr breaks down to give a simple product . is called decomposition reaction The reaction in which a compound splits up into two pr more substances are known as decomposition reaction. One reactant breaks into two or more than two products??? |
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| 53156. |
Name the acid which stomach wall secrets also mention its role |
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Answer» HClIt makes the medium acidic. Hcl-#it stop the action of slivary amylase. # it convert inactive pepsinogen in active pepsin. # it kills the bacteria which come along with the food.??????? So how was the answer????????? Hlc . It kills bacteria present in stomach Hcl |
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| 53157. |
What are the advantages and disadvantages of chemical reaction ? |
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Answer» Advantages1.chemical reaction help us to find new product2.some chemical reactions produce useful products.Disadvantages1.chemical reactions may product poisonoud gases as a byproduct2.chemical reaction coast us lot of lime and money for various chemical regards Your ..... |
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| 53158. |
Why is corrosion considered as a drastic phenomenon |
| Answer» | |
| 53159. |
Why is ocean blue? |
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Answer» Due to saceterring of light.??? Because of sky |
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| 53160. |
3 similarities between acid and base |
| Answer» Similarities between acid and base are. 1. They both produce H2gas when they react with any metal. 2. Strong base and acids are corrosive in nature. 3. Solutions of acids and bases are good conductor of electricity | |
| 53161. |
Which non metal inhale during breathing |
| Answer» Carbon | |
| 53162. |
What is the function of gastric sphincter and oral sphincter |
| Answer» | |
| 53163. |
What is chemical reaction. |
| Answer» A reaction in which their is a makinag and breaking of bonds of atom is known as chemical reaction | |
| 53164. |
Why does dry hcl gas not change the colour of dry litmus paper |
| Answer» Dry HCl gas does not change the colour of dry litmus paper as it has no hydrogen ions [H+(aq) ions] in it. Because Acid needs water to create its effect. | |
| 53165. |
What is source of pepsin |
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Answer» Gastric juice contains protein digestive enzymes called pepsin From gastric gland???? |
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| 53166. |
How to draw heart |
| Answer» How can we draw here...r u asking for the steps? | |
| 53167. |
Colour of metyhl orange in acid |
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Answer» Tatti colour Yellow |
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| 53168. |
Types of holozoic nutrition with proper फूल definations |
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Answer» Amoeba??? Humans, animals |
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| 53169. |
I want to talk with cbse teachers |
| Answer» I am a cbse teacher talk with me at kotha | |
| 53170. |
What does the symbol (s) used with water indicator |
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Answer» It indicates that water is produced in gaseous states Solid |
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| 53171. |
Amount of homoglobin in blood |
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Answer» The normal range of haemoglobin content in an adult man varies from 14-18gm/dl. Dont know |
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| 53172. |
Generally the number of sons (male)is greter than daughter (famale)why |
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Answer» It is not a reason i think that the reason is that because the y chromosome is small in size and it runs fastly The main reason is doury . Girl is killed due to this reason??? |
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| 53173. |
how HCL produced in gastric gland of human beings |
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Answer» By salt and water only By salt and water |
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| 53174. |
Calculate the numbers of electron consisting 0.1 coulomb charge |
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Answer» Sorry, that\'s wrong Charge on an electron =1.6*10–¹ |
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| 53175. |
What is the number of brain and heart in octopus? |
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Answer» Jyada hi dimag chalta hoga octups ka... 3 heart and 9 brain |
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| 53176. |
Who is education minister of india? |
| Answer» prakash javedkar | |
| 53177. |
What is the function of deodenum in human beings? |
| Answer» Bile juice is poured into duodenum to neutrilized the acidic food .Pancreatic juice help in digestion in deudenum | |
| 53178. |
What is the color of blood of octopus? Why ? |
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Answer» Blue because the present of copper based hemocyanin.It help in transportation of oxygen as haemoglobin do in human beings Blue because the blood contains hemocyanin protien which carries oxygen from the lungs to the bloodstream and then throughout the octopus\'s body Blue |
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| 53179. |
Blue crystals of copper sulphate on heating in a dry test tube become colourless . Give reason. |
| Answer» Chemical reaction occurs and the colour changes (change in colour identifies the chemical reaction) | |
| 53180. |
Why can not chemical change be normaly reversed . |
| Answer» Because here a new substance is formed | |
| 53181. |
Difference between active and passive absorption? |
| Answer» Active absorption1. It occurs due to the activity of roots and particularly root hairs2.it is due to osmotic and non osmotic mechanisms.3. In active absorption the osmotic process involves diffusion pressure deficit(DPD) of the cells. The root hairs have more DPD as compared to soil solution and therefore, water is taken in. Water is still absorbed if soil solution has greater DPD, But under expenditure of metabolic energy.4. Evidences in support of active water absorption are root pressure, bleeding and guttation.Passive absorption1. The passive absorption occurs due to the activity of upper part of plant, such as shoot and leaves.2. Passive absorption is due to the process of active transpiration in the upper part.3. The passive absorption occurs due to the tension created in the xylem sap by transpiration pull.4. Evidences in support of passive water absorption can be given by cutting the roots under water. The absorption of water still occurs if all the roots are removed. | |
| 53182. |
What is the radius of curvature of the spherical mirror in the figure given if Pa=10 cm |
| Answer» If principal axis length is given it does not relate with any of terms of mirror so it is not pissible to find radius till now | |
| 53183. |
Why are heating elements made of alloys rather than metals? |
| Answer» Because alloys have high melting point than other metals | |
| 53184. |
Racidity |
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Answer» Rancidity is a process by which the oil and fat present in the food get oxidised that changes the taste and odous of food and makes it unsuitable for consumption Rancidity referst to the oxidation of oil and fat containing food by spoiling them and a change in colour ,taste and smell appear. |
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| 53185. |
What are lymph? |
| Answer» Lymph contain special type of WBC called lymphocytes which help in fighting against infection, diseases. It also contain protein, molecules, digestive fat and fregmant of dead cell. Function : It takes part in circulation in large protein molecules and digested fat. It help in removing waste product like fregmant of dead cell. | |
| 53186. |
Where is pyloric valve located in human body ? |
| Answer» The pyloric valve is a band of smooth muscle at the junction between the pylorus of the stomach and the duodenum of the small intestine. It plays an important role in digestion, where it acts as a valve to control the flow of partially digested food from the stomach to the small intestine. | |
| 53187. |
Which base is present in bile juice. |
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Answer» After coming out of the stomach and upon entering the small intestine, the food is acidic due to the action of the Hcl. However, the enzymes that react with the food in the small intestine need an alkali medium. Bile does this; it neutralises the food and then provides an alkali medium for the various enzymes to act. Additionally, bile also emulsifies fat. Alkaline medium is present in bile juice.. |
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| 53188. |
How we say that acid is stronger or weak? |
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Answer» The acid is stronger because our stomach also have some acids so our stomach has a lining of mucous so that the acid dont harm our organs.... By its pH value |
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| 53189. |
Write the limitations of ohm\'s law |
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Answer» Thanks Limitations of Ohm’s law :1.Ohm’s law is valid for metal conductors, provided the temperature and other physical conditions remain constant.2.Ohm’s law is not applicable to gaseous conductors.3.Ohm’s law is also not applicable to semi-conductors such as Germanium and Silicon. |
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| 53190. |
Define Valancy in words |
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Answer» The number of electrons required to make the outer shell octet. Combining capacity of element called vallency.or how electron can gain ot loss by any element to become stable . |
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| 53191. |
Descibe food chain and food web with example |
| Answer» The chain of transfer of energy required for alive from producer(plant) to different animals called food chain.Ex.grass-grasshopper-frog-snake-eagle. | |
| 53192. |
Name the basic filtration unit present in the kideny |
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Answer» Nephrons are the basic filtration unit present in kidneys Nephron Nephrons are the microscopic basic filtration units of the kidney. |
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| 53193. |
Peristaltic movement in food pipe controlled by which part of our brain???????? |
| Answer» It is controlled by medula of our brain as it is involuntary action. | |
| 53194. |
Why can\'t a magnet attract things other than metals? |
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Answer» Magnet attract only metals because move of electrons only takes place in metals not in non metals. Because metals loose our electron and other are tidley packed |
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| 53195. |
All the atom Valancy |
| Answer» N | |
| 53196. |
Any q |
| Answer» I have given u a qus Can u solve it | |
| 53197. |
Which is the best therapy (treatment) for cancer |
| Answer» Most people have a combination of treatments, such as surgery with chemotherapy and/or radiation therapy. You may also have immunotherapy, targeted therapy, or hormone therapy. | |
| 53198. |
What makes the backbone of DNA??? |
| Answer» Deoxyribose is the name of the sugar found in the backbone of dna | |
| 53199. |
Why is the incident ray passed through the centre of curvature retraces own same path |
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Answer» Xim Uy? Because in that case any ray from centre of curvature act as normal |
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| 53200. |
How can 3 resistor of 6 ohm connected to get 4 ohm equivalent resistance |
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Answer» Resistance 1.33 |
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