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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.
| 61801. |
Show that electric power is given by v square upon r what is the si unit of electric power |
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Answer» In parallel circuit P=VIbut in parallel v is constant so we change I in resistance by ohms lawI=v/RPutting value of I in formula of power mentioned above we getP=v*v/RS.I.unit of power is watt....Additional information s.i.unit generally written to honour of our great scientists.. Volt square per ohm |
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| 61802. |
Define precipitation and nutralization reaction |
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Answer» 1. Neutralisation reaction-->the reaction between an acid and a base forming salt and water is known as neutralisation reaction.NaOH+HCl---->NaCl+H2O. 2. Precipitation reaction-->the reaction in which solid precipitates are formed as one of the product.AgNO3+NaCl---->AgCl+NaNO3 Both are type of double displacement reactions i.e by exchange of ions two compounds forms two new compounds..but the difference is that..in precipitation reaction always forms one insoluble solid known as precipitate ..Barium chloride and sodium sulphate gives one insoluble solid barium sulphateBut in neutrilisation reaction no precipitate formed..Sodium hydroxide and hydrochloric acid gives sodium chloride..which is not in form of precipitate.. Precipitation reaction in which insoluble substance r remained. Reaction in which acidic and basic substance combined to form salt and water r known as neutralisation reaction |
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| 61803. |
Dendrite |
| Answer» They are are branched protoplasmic extensions of a nerve cell that propagate the electrochemical stimulation received from other neural cells to the cell body, or soma, of the neuron from which the dendrites project. | |
| 61804. |
What are lanticels |
| Answer» one of many raised pores in the stem of a woody plant that allows gas exchange between the atmosphere and the internal tissues. | |
| 61805. |
What is the movement of food from leaf to oter parts of plants called |
| Answer» It is called translocation. | |
| 61806. |
Why is the colour of irine is yellow |
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| 61807. |
What is bony plateley? |
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| 61808. |
Name the liquid in which chlorophyll is soluble |
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Answer» Ya chlorophyll is soluble in water Water |
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| 61809. |
What is photosynthesis ?? |
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Answer» photosynthesis is a redox reaction inj which carbon dioxide is reduced to glucose and water is oxidised to form molecular oxygen in the presense of light and chlorophyll photo means light and synthesis means putting together so putting together of simple raw materials like co2 and water in the presense of light by chlorophyll is called photosynthesis. The process of making food by plant in the presence of sunlight and chlorophyll is called photosynthesis |
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| 61810. |
Diffrence between breting and respiration |
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Answer» In breathing we take oxygen and release corbon dioxide.Whereas in respiration we take oxygen which react with food and release energy and corbon dioxide. Breathing is a physical process and respiration is a chemical process . Breathing is extracellular were as respiration is both intracellular and extracellular Please give me answer Diffrence between breting and respiration |
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| 61811. |
Explain various type of reaction with example |
| Answer» Various types of reaction are ------------------>. 1.COMBINATION REACTION- the reaction in which two or more substance combine together to form a new substance is known as combination reaction .C+O2--------->CO2. 2. DECOMPOSITION REACTION- the reaction in which one substance is broken into two or more simpler substance is known as decomposition reaction.CO2---> C+O2. 3.DISPLACEMENT REACTION- the reaction in which more reactive element displaces the less reactive element.Zn+CuSO4----> ZnSo4+Cu. 4. DOUBLE DISPLACEMENT-the reaction in which two ionic compounds are exchanged is known as double displacement reaction.AgNO3+NaCl--------->AgCl+NaNO3. 5.NEUTRALISATION REACTION- the reaction in which acids and bases react with each other forming salt and water.NaOH+HCl-->NaCl+H2O. 6. PRECIPITATION REACTION- the reaction in which one of the products formed are solid precipitates.Ca(OH)2+CO2--->CaCO3+H2O. 7.EXOTHERMIC REACTION- the reaction in which heat is given out .C+O2->CO2+heat. 8. ENDOTHERMIC REACTION- the reaction in which heat is absorbed.C+H2O+heat-->CO+H2 | |
| 61812. |
Can we use copper instead of zinc in galvanization |
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| 61813. |
Calculate the resistance of 1 km long copper wire of area of cross section 2×10 |
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| 61814. |
Differences between digestion and photosynthesis? |
| Answer» Photosynthesis -\xa0the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.Digestion -\xa0sequence by which food is broken down and chemically converted so that it can be absorbed by the cells of an organism and used to maintain vital bodily functions. breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma | |
| 61815. |
Why do nucleus not destroyed even there are many similar charges (positive) present inside it? |
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| 61816. |
Can light pass through a atom ? If yes then how and if no then why not. |
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Answer» Since nucleus is very small and light has bending tendency through small objects, it will pass through the atomic space in the atom Yes light can pass through an atom |
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| 61817. |
Which component of food is broken down when salivary amylase acts on body and name product formed |
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Answer» Salivary amylase act on carbohydrate and digest about 30 Percent carbohydrate in mouth only , the product formed is called maltose Starch(present in food) convert into sugar It acts on food which is rich in starch and it break downs starch into maltose and breaks down simple sugar particles. It starts the decomposition of carbohydrates into sugar Its not body but food |
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| 61818. |
What is relation between time and force |
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| 61819. |
What is the si unit of magnetic flux |
| Answer» Weber (wb).. | |
| 61820. |
Definition of electric decomposition reaction |
| Answer» Decomposition reaction which takes place when electricity is supplied to it.For ex-->. 2 H2O------>2H2+O2,during electrolysis. | |
| 61821. |
How do leaves of plants help In excretion |
| Answer» It help in many ways.1. Transpiration in which excess water is discarded.2. CO² and O² can be considered as waste product of respiration. | |
| 61822. |
What is hygroscopic? |
| Answer» Tending to absorb moisture from air | |
| 61823. |
Sir how many metal in modern periodic table? |
| Answer» 91 | |
| 61824. |
names of four Chamber of human heart |
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Answer» Left ventricle, Right ventricle,Left atrium, and Right atrium Left and right auricle and left right ventricle Two artri and two ventrical |
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| 61825. |
What is Power house of the cell |
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Answer» Mitochondria mitochondria MITOCHONDRIA MITOCHONDRIA is the power house of the cell Mitochondria |
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| 61826. |
Give reason why while and fat containing food items are flushed with nitrogen |
| Answer» So that fat containing food item do not oxidize and become rancid . Nitrogen act as a antioxidant | |
| 61827. |
Factors used to express blood pressure |
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Answer» If you mean the unit of measuring blood pressure then it is "mmhg".Average B.P.(Blood Pressure) in human beings is 120mmhg Do you mean units? |
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| 61828. |
What happens if platelets were absent in the body |
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Answer» We know that platelets helps in the clotting of blood . Whenever we have a wound/cells ruptured by some reason the thrombokinase enzyme deactivates reparnin(the flow of blood continuously) , if platelets were absent in the body , our body can\'t able to heal the wound resulting in flow of the blood continuously outside the body , then we become weak . If there is any wound ,blood will flow out continuously in the absence of platelets It cames to death. |
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| 61829. |
Dental fomula of teeth |
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Answer» Upper jaw - 2123. Lower jaw - 2123??? Formula for teeth--->2123/2123. |
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| 61830. |
What is the current flowing in a circuit of resistance of 5 ohm\'s and potential difference of 5V??? |
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Answer» Avinash raj you are wrong?? P.D=5v and R=5ohm so i=v/r =5/5=1.so current= 1 A We know that I =v/rSo current =5/5=1anpere 25A Use formula R=V/I5=5/II=1 |
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| 61831. |
What is corpuscles |
| Answer» The small cells whuchmay be living or non living are called cirpucles | |
| 61832. |
Explain the reproduction process in Humans |
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| 61833. |
What is the work of a neutral wire in house wirings? |
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| 61834. |
Difference between charge and electric charge |
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| 61835. |
10 example of chemical reaction which you observed in daily life?? I |
| Answer» Respiration, burning of paper, rusting, formation of curd, digestion, fermentation of ?, etc. | |
| 61836. |
Explain E=mc2 |
| Answer» E= energyM=massC=speed of light | |
| 61837. |
What is pH scale? How it is related to hydronium ion concentration |
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Answer» pH is power or potential of H2.It is the negative logarithm of hydrogen ion concentration with base 10 .It tells us whether the substance is acidic or basic.If pH is below7then it is acidic,if pH is 7 then it is basic and if pH is more than 7 then it is basic. Ph scale is scale which tell us is substance acidic or basic in nature if there is more hydronium ions it is acidic and if less hydronium ions it is basic |
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| 61838. |
How will you judge weather a chemical reaction is exothermic or exothermic in nature. |
| Answer» if heat is release so it is exothermic and if its nature is related to heat so its called exothermic in nature | |
| 61839. |
Why is valency of iron is 2and 3 |
| Answer» Iron2 valency is 2 and Iron 3 valency is 3 | |
| 61840. |
Give 5 Example of Oxidation & Reduction..? |
| Answer» Examples of oxidation are .......................... 1.C+O2----------------------------------------->CO2. 2.P4+5O2--------------------------------->2P2O5. 3.2Mg+O2--------------------------------->2MgO. 4.S+O2--------------------------------------->SO2. 5.C+ZnO-------------------------------->CO+Zn. Examples of reduction are ............................. 1.H2S+Cl2------------------------------>2HCl+S. 2.2H2+O2------------------------------->2H2O. 3. CuO+H2----------------------------->Cu+H2O. 4. SO2------------------------------------>S+O2. 5.H2S+Cl2---------------------------->2HCl+S. | |
| 61841. |
What is peristalic movement |
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Answer» The movement of food in the oesophagus from mouth to stomach The rythemic contraction of food pipe to push the food forward is called peristaltic movement The contract ion and relaxation of alimentary canal for easy passage of food |
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| 61842. |
Reaction between water and fluorine gas |
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Answer» HF +HOF Two elements is a reaction |
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| 61843. |
Why we put no.s down of some element and in front of some element like......We rite H *2 1 |
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| 61844. |
unit of magnetic field strength |
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| 61845. |
What is galvanised iron?how is galvanised iron protected from rust? |
| Answer» It means that it has the coating of zinc. It is protected from rust as zinc is coated above it so it can\'t allow iron to be rust | |
| 61846. |
Make a modal on holozoic mode of nutrition. |
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| 61847. |
Give some example of refraction of light |
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Answer» Ohh there are lots and lots of examples!Your eyesRainbowsLight bending in a glass of waterGlassesCamera lensesObject dislocation in waterBinoculars Dont get ans |
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| 61848. |
Name a board spectrum antibiotic and State two disease for which it is prescribed |
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| 61849. |
Why calcium is less reactive than sodium? |
| Answer» Because calcium is more electropositive than sodium or it loses electrons very easily. | |
| 61850. |
Draw a flowchart of chemical reaction and euations? |
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