InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your Science knowledge and support exam preparation. Choose a topic below to get started.
| 1751. |
Q.4. A baby is not able to tell her/his caretakers that she/he is sick. What wouldhelp us to find out(a) that the baby is sick?(b) what is the sickness? |
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| 1752. |
5. Which four important points must be kept in mind if you want to keep apet? |
| Answer» <p>PROVIDE A PROTECTED AND CLEAN LIVING ENVIRONMENT FOR YOUR DOG. </p><p>ALWAYS KEEP FRESH WATER AVAILABLE. </p><p>FEED A QUALITY DIET AND PREVENT OBESITY. </p><p>HAVE YOUR PET EXAMINED BY A VETERINARIAN ON A REGULAR BASIS. </p><p>PROVIDE AMPLE OPPORTUNITIES TO EXERCISE. </p> <p>How can you keep yourself clean </p> | |
| 1753. |
10.What rate gives 280 as interest on a sum of t56,000 in 2 years? |
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| 1754. |
ăź(B) One of the rectangularLompenentsCom ponents |
| Answer» <p>As one component of 80km/hr velocity is 40km/hr , then ;</p><p>cos (theta) = 40/80= 1/2(theta) = 60°</p><p>other component will be ;cos (90-60) = x/8080 × cos 30° = xx = 80×√3/2x = 40√3 km/hr</p> <p>thanks u</p> | |
| 1755. |
ATHEMATICSExpress in kg:1. 200 g |
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| 1756. |
. Briefly explain the term Electrophoresis. |
| Answer» <p>Electrophoresis is aseparations techniquethat is based on the mobility of ions in an electric field.Positively charged ions migrate towards a negative electrode and negatively charged ions migrate toward a positive electrode. For safety reasons one electrode is usually at ground and the other is biased positively or negatively.Ions have differentmigrationrates depending on their total charge, size, and shape, and can therefore be separated.The technique is used particularly for macromolecules, such as proteins. A negative charge is added to these molecules so they move towards the positive electrode.</p><p>Instrumentation</p><p>An electrode apparatus consists of a high-voltage supply, electrodes, buffer, and a support for thebuffersuch as filter paper,celluloseacetate strips, polyacrylamide gel, or acapillarytube.</p><p>Open capillary tubes are used for many types of samples and the other supports are usually used for biological samples such as protein mixtures orDNAfragments. After a separation is completed the support is stained to visualize the separated components.Resolution can be greatly improved using isoelectric focusing. In this technique the supportgelmaintains apHgradient. As a protein migrates down the gel, it reaches a pH that is equal to its isoelectric point. At this pH the protein is neutral and no longer migrates, i.e., it is focused into a sharp band on the gel.Specific electrophoretic techniques</p><p>disc electrophoresis</p><p>capillary electrophoresis</p><p>gel electrophoresis</p> | |
| 1757. |
Convert the following:1. 86°C to Fahrenheit3. 37°C to Fahrenheit |
| Answer» <p>1) 9/5 * 86 + 32 = 154.8 + 32 = 186.8 F 2) 9/5 * 37 + 32 = 66.6 + 32 = 98 F </p> | |
| 1758. |
A large number of changes are major cause of pollution. How? |
| Answer» <p>A large number of changes are a major cause of pollution as the growth of commercial and industrial buildings will use much of the resources and therefore polluting the city or the place with higher rates. </p> | |
| 1759. |
Define cell? |
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| 1760. |
Name the unit in which speed is measured by speedometer of your car. |
| Answer» <p>kilometer/hour (km/hr)</p> <p>kilometer/hour(kmph)</p> | |
| 1761. |
whattype of speed a speedometerlacoed |
| Answer» <p>Thespeedometerof a car reveals information about the instantaneousspeedof your car. It shows yourspeedat a particular instant in time. On the average, your car was moving with aspeedof 25 miles per hour.</p> | |
| 1762. |
I. Define temperature. |
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| 1763. |
reflection refraction dispersion difference |
| Answer» <p>Reflection takes place when the light does not pass into the material, but is instead "bounced" off the surface. </p><p>Refraction occurs when the light passes into the material. </p><p> Dispersion occurs when different wavelengths of light are refracted different amounts, separating the light into its constituent colors.</p> | |
| 1764. |
what is dispersion of light |
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| 1765. |
Define a cell |
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| 1766. |
Find formal charge of MnO4— |
| Answer» <p>Ans :- FC = VE - NBE - 1/2BE .... where VE = valence electrons, NBE = nonbonding electrons, BE = bonding electrons.</p><p>For Mn.... FC = 7 - 0 - 1/2(8) = +3</p> | |
| 1767. |
define the term atom molecule compound mixture atomicity and valency |
| Answer» <p>An atom is the fundamental structure of an element. A typical atom consists of a nucleus of positively-charged protons and electrically neutral neutrons with negatively-charged electrons orbiting this nucleus</p><p>Amoleculeis the smallest particle in a chemicalelementorcompoundthat has the chemical properties of that elementorcompound.Moleculesare made up ofatomsthat are held together by chemical bonds.</p><p>A compound is a substance that results from a combination of two or more different chemical element s, in such a way that the atom s of the different elements are held together by chemical bonds that are difficult to break.</p><p>Atomicity is the total number of atoms present in one molecule of an element, compound or a substance</p><p>Valencyis the combining power of anelement. Thevalency of an elementis related to how many electrons are in the outer shell.</p> <p>where is the answer of mixture</p> <p>A mixture is defined as the result of combining two or more substances, such that each maintains its chemical identity. In other words, a chemical reaction does not occur between components of a mixture. Examples include combinations of salt and sand, sugar and water, and blood.</p> | |
| 1768. |
2. Differentiate between a speedometer and an odometer |
| Answer» <p>One defines the speed at which oneistraveling (speedometer) and the other counts miles traveled (odometer). An instrument providedin anautomotive vehicle to indicate the total number of miles that have been traveled. ... An instrument similar in design and function to the automotiveodometermay be fitted to a bicycle.</p> | |
| 1769. |
1. Define dispersion. |
| Answer» <p>Dispersion—The splitting of white light into its component colours is known as dispersion.</p> | |
| 1770. |
2. Define respiration. |
| Answer» <p>In physiology, respiration is the movement of oxygen from the outside environment to the cells within tissues, and the transport of carbon dioxide in the opposite direction</p> | |
| 1771. |
define 1. odometer 2. aerobic respiration and anaerobic respiration |
| Answer» <p>1. Odometer- an instrument for measuring the distance travelled by a wheeled vehicle.2. Aerobic respiration- Aerobic respirationis the process of producing cellular energy involving oxygen. </p><p>Cells break down food in the mitochondria in a long, multistep process that produces roughly 36 ATP. </p><p>The first step in is glycolysis, the second is the citric acid cycle and the third is the electron transport system.</p><p>3. Anaerobic respirationisrespiration using electron acceptors other than molecular oxygen (O2).</p><p>These terminal electron acceptors have smaller reduction potentials than O2,meaningthat less energy is released per oxidized molecule. </p><p>Therefore anaerobic respirationis less efficient than aerobic</p> | |
| 1772. |
What do you mean by a precipitation reaction? Define with example. |
| Answer» <p>When the water become bigger and heavier they fall on the earth as rain. This process is called precipitation. </p> | |
| 1773. |
Define the term molecules?what do you mean by homoatomic and heteroatomic molecules. |
| Answer» <p>A molecule is a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.</p><p>A molecule containing same type of atoms is called Homoatomic Molecule e.ghydrogen,ozone,sulphur, and phosphorus are the exampled of molecules formed by the same type of atoms. When a molecule consists of different kinds of atoms,it is called Hetroatomic Molecule e.g water.</p> | |
| 1774. |
2. What is sewage? Explain why it is harmful to discharge untreated sewage into rivers or seaAns. Sewage is wastewater released by homes, industries hospitals, offices and other users. It also inheon rain The water that washes off roads an |
| Answer» <p>Sewage is the wastewater containing both liquid and solid wastes produced by humanactivities from homes, industries, hospitals, offices, etc.Sewage contains various contaminants including disease-causing bacteria and othermicrobes. If untreated sewage is discharged into rivers or seas, then the water in therivers or seas would also get contaminated. If this contaminated water is used fordrinking, then it can cause diseases such as cholera, typhoid, dysentery, etc. which maylead to death. That is why it is harmful to discharge untreated sewage into rivers orseas.</p> | |
| 1775. |
Write the electron dot structure of ethene molecule. |
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| 1776. |
Write the electron dot structure of ethene molecule |
| Answer» <p>The two carbons have a double bond between them and each carbon atom form covalent bonds with two hydrogen atom. </p> | |
| 1777. |
Q.2 Draw the process of photosynthesis. |
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| 1778. |
In the following, identify the 2 terms related to silk production: |
| Answer» <p>please provide complete question. </p> | |
| 1779. |
Kalpana Chawla |
| Answer» <p>what is your question ? </p> <p>where was Kalpana Chawla born why is called an Indian American</p> | |
| 1780. |
who was Kalpana chowla? |
| Answer» <p>Kalpana Chawla was an American astronaut and the first female of Indian origin to go to space</p> | |
| 1781. |
swer the tollowing questions:alculate the tempereture at which the Eahrenheit scaleis double the Celsius scale. |
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| 1782. |
16 g ot solid SulphurCalculate the number of aluminium ions present in 0.051aluminium oxide11.g ot(Hint: The mass of an ion is the same as that of an atom of thesame element. Atomic mass of Al = 27 u)SCIEN |
| Answer» <p>Molecular weight of Al2O3= 102 g</p><p>102 g of Al2O3contains 6.022X10^23molecules</p><p>0.051g of Al2O3contain X number of molecules</p><p>X = 0.051 X 6.022X10^23/102 = 0.003 X 10^20</p><p>X = 3 X 10^20</p><p>1 molecule of Al2O3contains – 2 Al+3ions</p><p>3 X 10^20molecules contains – 2 X 3 X 10^20</p><p>= 6 X 10^20Al+3ions∴0.051 g of Al2O3contains 6 X 10^20Al+3ions</p> | |
| 1783. |
differentiate between bar magnet and permanent magnet |
| Answer» <p>Bar magnets are permanent magnets and will never looses their magnetism. They are always switched on. The orientation of the poles remains fixed. </p><p>Electromagnets are temporary magnets and work only when an electric current is passing through it. The orientation of the poles depends upon the direction of the current.</p> <p>differences between MCB and fuse</p> <p>please tell</p> | |
| 1784. |
2. The bar magnet is an example of a .................magnet. |
| Answer» <p>permanent magnet. a bar magnet is the simplest form of magnet which is rectangular in shape and has magnetic field around. it is usually made of ferromagnetic materials </p> | |
| 1785. |
6. Where are poles of a bar magnet located?7. A bar magnet has no markings to indicate its poles. How wouldnear which end is its north pole located?it into a ma net |
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| 1786. |
These bacteria cause diarrhoea,vomiting and abdominal pain. |
| Answer» <p>Gastroenteritis is the irritation of the digestive track caused by a viral, bacterial, or parasitic infection. Symptoms include diarrhoea, vomiting, and abdominal pain. Treatment mainly involves symptom relief and fluid replacement. Gastroenteritis is also known as a tummy bug, stomach flu, intestinal flu, food poisoning, and traveller’s diarrhoea.</p> | |
| 1787. |
~~муопе резоп со апос.7. Describe the mode of transmission, causative pathogen, and preventive measures of the followingdiseases:(a) Malaria(b) Cholera(c) Typhoid(d) Chickenpox(f) Foot and mouth disease(g) Poliomyelitis(h) Tuberculosis(i) Ringworm(e) Anthrax voccine |
| Answer» <p>thank u</p> <p>malaria : female anophelesmosquitoCholera:polluted watertypoid: polluted waterchicken pox : air and un health person the health person.Anthrax :sheepfoot and mouth disease: airt.b : air</p> | |
| 1788. |
2. Name three mineral acids and give their formulae. |
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| 1789. |
1. What are mineral acids? |
| Answer» <p>Amineral acid(orinorganic acid) is anacidderived from one or moreinorganiccompounds. All mineral acids form hydrogen ions and the conjugate base when dissolved in water.</p> | |
| 1790. |
30. Calculate the tension in the string shown in figure(5-E13). The pulley and the string are light and allsurfaces are frictionless. Take g= 10 m/s1 kg1 kg |
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| 1791. |
Proteins are made up of and what are amino acids |
| Answer» <p>Amino acids are organic compounds containing amine and carboxyl functional groups, along with a side chain specific to each amino acid. The key elements of an amino acid are carbon, hydrogen, oxygen, and nitrogen, although other elements are found in the side chains of certain amino acids.</p><p>Please hit the like button</p> | |
| 1792. |
What are the days when we can't see the moon called ? |
| Answer» <p> For the moon to be visible during the day, it must be up in the sky at the same time as the sun, but not so close to the sun in the sky that you can't see it.</p> | |
| 1793. |
1. Balance the chemical equation:NaOH+H,SO4Na,So+HO |
| Answer» <p>2 NaOH + H2So4 = Na2So4 + 2 H2OReaction type: double replacement</p> | |
| 1794. |
(vi) Mention any two uses of bases. |
| Answer» <p>Uses of bases. Sodium hydroxide is used in manufacture of soap, paper and a synthetic fiber called "rayon". Calcium hydroxide (slaked lime) is used in the manufacture of bleaching powder. Calcium hydroxide is also used to clean the sulfur dioxide, which is caused by exhaust, that is found in power plants and factories.</p> <p>also mention the uses of acids pls</p> | |
| 1795. |
tan60 |
| Answer» <p>root 3 </p> | |
| 1796. |
Highest size will be of(A) Br(B) 1(C) r(D) I |
| Answer» <p>option B might be the answer. </p> | |
| 1797. |
Example 2.1 A solution contains 40 g ofcommon salt in 320 g of water.Calculate the concentration in terms ofmass by mass percentage of thesolution. |
| Answer» <p>Mass of solute - NaCl =40gmMass of solvent - water =320gmMass of solution =(40+320) gm=360gmConcentration in terms of Mass by mass percentage =mass of solute /mass of solution *100=40/360*100%=11.11%</p> | |
| 1798. |
4. A particle of mass m and charge Q is placed in anelectric field E which varies with time t ass EE0undergo simple harmonic motion ofamplitude |
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| 1799. |
1. A block of mass 2 kg rests on a plane inclined at anangle of 30° with the horizontal. The coefficient offriction between the block and the surface is 0.7.What will be the frictional force acting on theblock ? |
| Answer» <p>force of friction of block is 9.8N</p> <p>force of friction of block is 9.8N</p> | |
| 1800. |
Does Moon have its own light? If not,then how are we able to see it? |
| Answer» <p>The answer to this question is no.</p><p>However, the reason we see the moon at night or sometimes during the day at certain times is because it is so close to the Earth and reflects the sun’s light. Therefore, we see the moon because it is reflects light and is the nearest extraterrestrial object and therefore makes it visible to the unaided eye.</p><p>It is a popular misconception that the moon is a great reflector of light. However, the moon is actually on of the least reflective objects in our solar system. The moon’s dust is comprised of almost half silicon dioxide glass created by meteoroids hitting the moon. These impacts fuse topsoil into glass and shatter the same into tiny pieces. Moon dust is also rich in iron, calcium and magnesium bound up in minerals such as olivine and pyroxene.</p><p> of these elements or compounds are good reflectors.</p><p>At some points during the day, the moons orbit carries it far enough that it reflects the suns light without completely getting drowned out by the sun, making it visible during daylight hours.</p><p>Think of the moon as mirror, and its dust being the glass. When you shine a flashlight on the mirror, it reflects the flashlight’s light. The mirror is not producing any light, but it is merely reflecting the flashlight’s. Same story with the moon, it does not produce its own but acts as a mirror to reflect the sun’s light to light up the night sky</p> | |