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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.
| 64201. |
What is synpase and its function.elaborate |
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Answer» In the nervous system, a synapse is a structure that permits a neuron (or nerve cell) to pass an electrical or chemical signal to another cell (neural or otherwise). The synapse contains a small gap separating neurons. Help information to flow from one neuron to another And functioning? The gap between the nerve ending to the next dendrite of a neuron is called synapse |
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| 64202. |
From where and how in electric generator produce electricity while rotating coil in magnetic fields? |
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| 64203. |
Is your paper is coming in set or not |
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Answer» No Yas |
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| 64204. |
What is inside gap between two neurones ? |
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Answer» synpase Synapes |
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| 64205. |
Common name of the compound CaOCl2? |
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Answer» Bleaching powder Calcium oxi chloride Bleaching powder Calcium oxychlorin Calcium hypochlorite is an inorganic compound with formula CaOCl2. As a mixture with lime and calcium chloride, it is marketed as chlorine powder or bleach powder for water treatment and as a bleaching agent |
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| 64206. |
what is base? write uses of base |
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Answer» Bases are the substances which release OH– ions in water. It can be defined as a substance that when added to water increases the number of OH– ions in water.Uses of Base:\tSodium Hydroxide is one of the most common components which is used in the manufacture of soap, ‘rayon’ (a synthetic fiber) and paper.\tCalcium Hydroxide can remove Sulfur Dioxide and is often used in factories and power plants. Bases are the metal oxides mixed with waterUses of bases1 used in making salt2 weak base are used as anta acid |
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| 64207. |
Describe double circulation in human beings . Why is it necessary ? |
| Answer» \xa0During a single cycle blood goes twice in the heart which is known as double circulation. It is necessary in human being to separate oxygenated and de-oxygenated blood because this makes their circulatory system is more efficient and helps in maintaining constant body temperature. | |
| 64208. |
Which of the followung is a plant hormone?A) insulin B) thyroxineC) oestrogenD) cytokinin |
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Answer» D) D is the right answer Cytokinin |
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| 64209. |
Why is charcoal counsidered to be better fuel than wood |
| Answer» Charcoal and are two important fuels. Charcoal is mainly carbon and wood is mainly cellulose. Charcoal is much better fuel than wood because of the following reasons:1. Charcoal does not produce smoke when it is burnt whereas wood produces a lot of smoke.2. Charcoal has a higher calorific value than wood. Calorific value of charcoal is 33 Kilojoules per gram whereas that of woos is 17 kilojoules per gram.3. Charcoal is relatively a compact fuel and hence is easier to handle.\xa0 | |
| 64210. |
Hi anybody online????? |
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Answer» Ya yes Ya |
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| 64211. |
What is a coil |
| Answer» Coil is a popular name of an inductor. Intrauterine device or coil, a contraceptive device. Chemical oxygen iodine laser or COIL. Coil, a binary digit or bit in some communication protocols such as Modbus. COIL, the gene that encodes the protein coilin. | |
| 64212. |
What is a blood |
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Answer» Blood is also a conective tissue A liquid composed mainly of plasma(water ,ion ,proteins ,fibrin and clotting factors), blood cells (leukocytes and erythrocytes ). It transport nutrients, cellular waste,hormones etc |
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| 64213. |
Define free electron and give example |
| Answer» Those electron which are capable of conduct current.which is also called as valence electron founf in the outermost sheel of the element.Examples : all conductors. | |
| 64214. |
Where is single double and triple bond ing used.?? |
| Answer» Single is used in Alkane ,double is used in Alkene and triple is used in Alkyne | |
| 64215. |
Charg defin |
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| 64216. |
Protien coated fat globules are called what |
| Answer» These are known as chylomicrons which are transported to the lymph vessels in villi. | |
| 64217. |
What type of lens is an air bubble inside the water |
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Answer» It is a convex lens as wherever we put the object the image formed will be small. It act as a convex lens and convex mirror also Convex lens Concave lens |
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| 64218. |
Why saturated fats are preferred over unsaturated fats? |
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Answer» This can be cause cardiac desiases. Here if we remove saturated fats from diet then it lower down the values of blood chlestoral that may cause heart diseses . Probability if cardiac desiases is very low |
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| 64219. |
Explain the process of electrolytic for copper? |
| Answer» (The electrolyte is a solution of acidified copper sulphate. The anode is impure copper, whereas, the cathode is a strip of pure copper. ) On passing electric current through electrolyte, the pure copper from the anode dissolves into the electrolyte. An equivalent amount of pure copper from the electrolyte is deposited on the cathode. The soluble impurities go into solution, whereas, the insoluble impurities settle down at the bottom of the anode and are known as anode mud. | |
| 64220. |
Carbon is not use for reducing aluminium from aluminiumoxide .Give reason |
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Answer» Aluminum is very reactive than carbon Aluminum is too high in the reactivity series to extract it from its Ore using carbon reduction . the temperature needed are too high to he economic . instead this it is extracted by electrolysis . the aluminium oxide has too high melting point to electolyse its own..... |
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| 64221. |
What is the name of CH3--C--O--CH2--CH2--CH3 (ch 4 nomenclature ) II O |
| Answer» Last m double bond \'O\' h kya? | |
| 64222. |
What is the function of " cytokinine " in fission??? |
| Answer» 1) Cytokinins are capable of stimulating cell division along with auxins.2) They promote cell elongation.3) They have ability to delay the process of ageing in leaves.4) Cytokinins can prolong the life of fresh leaf crops like cabbage, spinach.5) They are also used for keeping the flowers fresh. \'6) Cytokinins are most effective in breaking dormancy of buds and seeds.7) The levels of cytokinins decrease in senescing leaves. | |
| 64223. |
Why does tha colour of copper sulphate solution change when an iron nail is dipped in it |
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Answer» Iron can displace copper because high reactive displace less reactive Because copper is displaced by the iron as we know that iron is more reactive than copper |
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| 64224. |
Why photosynthesis is consider an endothermic reaction |
| Answer» Photosynthesis is considered to be an endothermic reaction because sunlight is absorbed in the form of heat for breaking the water molecule into hydrogen and oxygen ions | |
| 64225. |
Properties of acid |
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Answer» Chemical property1.acid react with metal to form salt and hydrogen .2 react with metal carbonate or metal hydrogen carbonate to form salt water and carbon dioxide, 3.ract with base form salt and water,4. React with metallic oxide to form salt and water ,5.react with non metal no reaction They are liquids.They are solutions of compounds in water.If concentrated they can be corrosive.Acids taste sour (for example, vinegar).Turn blue litmus paper red - this is an easy test for an acid!Usually react with metals to form salts.Acids contain hydrogen ions. Physical propertiessour in taste, PH less than 7, convert blue litmus to red |
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| 64226. |
Science ka syllabus |
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| 64227. |
What do you mean by brime? |
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Answer» Navdeep it\'s brine not brime. Well brine is a cold and concentrated solution of NaCl and H2O NaCl+H2O Concentrated aqueous solution of NaCl NaCl+H^2O |
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| 64228. |
State the faradey \'s law of electomagnetic induction |
| Answer» 1- the change in the number of magnetic field lines through a loop produces induced emf and induced current in the loop.2-the magnitude of induced emf and induced current depends on the change in the number of magnetic field lines through the loop with respect to time. | |
| 64229. |
How to prepare for board exam |
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Answer» For preparing for board exams , you need to focus on NCERT books. Revise all the ncert questions. Prepare notes and then revise them with a routine . Solve last year question papers ,sample papers as many as u could. U can also take help from other reference books . I hope it will help u somehow?? Read only ncert book very deeply for all subject . You will get 80% marks For side books i will prefer you R.D. Sharma for mathS.chand for science ..... golden publication for hindi. .... no need for s.sc & english side books There r mny ways...like with making our own notes....and ....undrstand concepts....writing skill is vry important for board exams....how to writw ans....thw way of writing ..most important term is tht.. |
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| 64230. |
Human is essential why |
| Answer» For continuation of life on earth.... | |
| 64231. |
What is niche?it is urgent??? |
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Answer» The term niche in science is used in ecological science to define an organism\'s role in ecosystem I don\'t know |
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| 64232. |
What are the physical and chemical properties of acids and bases? |
| Answer» Acid Properties:\tAcids are corrosive in nature.\tGood conductors of electricity.\tAcids have pH less than 7.\tProduces hydrogen gas when reacted with metals.\tAcids taste sour.Properties of Bases:\tThey are soapy when touched and bitter to taste.\tBases release a hydroxide ion into the water solution.\tWhen used in the aqueous state, they are good conductors of electricity.\tThey have pH value greater than 7\tTurn red litmus paper blue.\xa0 | |
| 64233. |
Why is calcium float in water...???? |
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Answer» Because the hydrogen gas is released and this gas stick to the calcium and makes it light thus it floats on water Because when we put "Ca" in water ,then it reacts with it and form hydrogen gas .This hydrogen gas in the form of bubbles stick to its surface and hence "Ca" float in water as hydrogen gas is very lighter. Because the density of water is greter than calcium so calcium float in water. |
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| 64234. |
Trace the events....of reflex action???? ( frm biology ch 2) ??? |
| Answer» Receptors | |
| 64235. |
What is mean by buckminsterflurrence |
| Answer» It is an allotropes of carbon cotaining clusters of60 carbon atoms joined togetherto form spherical molecule there are 20 hexagon & 12 pentagon of carbon atoms link together | |
| 64236. |
Explain the asexual reproduction method and example with clean labelled diagram |
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| 64237. |
One yotta watt equals to how many watt |
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| 64238. |
What are sensory and motor neuron and write its function |
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Answer» Sensory neurons: These neurons indicate the brain about the external and internal environment. Sensory nerves are the nerves that send messages to the brain or the spinal cord from the sense organs.Motor neurons: Motor neurons contract muscles and other output neurons to stimulate glands and organs. Motor nerves are those nerves those that carry the messages in the form of a response from the brain or the spinal cord to other parts of the body such as the muscles and glands. Ans according to 2 marks |
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| 64239. |
Why is abscisic acid called stress hormone? 2 marks |
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Answer» Abscisic acid is known as stress hormone because It produces plants from adsorbe condition like water stress . It increases tolerence of plant to various type of stress. Abscisic acid is present in the plants which checks whether the plant is healthy or not if not or over water supply it may lead to falling of leaves Abscisic acid is known as the stress hormone because of the following reasons :1. It helps plant to cope with adverse environmental conditions or stresses.\xa02. It causes temporary closure of stomata due to which there is reduction in the rate of transpiration. Therefore, it acts as antitranspirant and reduces water loss.3. It acts as a general growth inhibtor and inhibitor of plant metabolism4. It inhibits seed germination.5. It induces dormancy to escape the unfavourable conditions. |
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| 64240. |
Discuss the Mendleeve\'s Periodictable of classificatiom of elements. |
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| 64241. |
Why the space is dark or there is no visible light |
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| 64242. |
Use of caocl2 in hindi |
| Answer» Caocl2 is bleaching powder is used in to clean water | |
| 64243. |
What is agar-agar? |
| Answer» It is a type of algae which is used as dish in China | |
| 64244. |
List the two bitle of kidney |
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| 64245. |
Is the value of focal length half of the radius of curvature in lenses |
| Answer» Yes | |
| 64246. |
Defferece b/w fleming right and left hand rule |
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Answer» Fleming\'s left hand rule is applied when a current carrying conductor is placed in a magnetic field and used to find out the direction of force on a current carrying conductor in magnetic field. Fleming\'s right hand rule is applied when current is induced in a conductor due change in magnetic flux around the conducting coil and it is used to find the induced current direction in a conductor the magnetic flux changes around the conductor . Left hand rule is helpful in finding the direction of current whereas right hand rule specifically gives us the direction of induced current. |
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| 64247. |
When we put water in acid ? Whats happens. |
| Answer» Mixing of water and acid is a highly exothermic process. When water is added to acid , due to small amount of water, evolved heat will change it to vapour and acid will spill out and may cause injury. So it is advised to mix acid to water and not water to acid. | |
| 64248. |
How does Hcl form in human digestive system? |
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Answer» Hydrochloric acid is the only acid secreted by parietal cells of the stomach.*This provides an acidic environment for many digestive enzymes to become active. Enzymes like pepsinogen get activated by HCl into pepsin which acts on proteins and brings about their digestion.\xa0*HCl along with gastric lipase emulsifies the lipids present in our food.*HCl kills most of the pathogenic bacteria entering the digestive tract along with our food and water. By many gastric glands |
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| 64249. |
What about cbse board practicals.are they conducted |
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| 64250. |
Opening and closing of stomata is due to what?? |
| Answer» Guard cells By loss of water.. | |