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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.
| 9701. |
Explain the importance of soil for plant growth? |
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Answer» Soil provides mineral,nutrients and other essential needs from the soil for growth and development of the plant. Soils provide plants with essential minerals and nutrients. Soils provide air for gaseous exchange between roots and atmosphere. Soils protect plants from erosion and other destructive physical, biological and chemical activity. Soils hold water (moisture) and maintain adequate aeration. |
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| 9702. |
Define electromagnetism |
| Answer» the phenomenon of the interaction of electric currents or fields and magnetic fields. | |
| 9703. |
Which kind of len our eyes have? |
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Answer» Convex The lens is a transparent, convex lens in the eye that, along with the cornea, helps to refract light to be focused on the retina. Hence, Convex lens is present in human eye. Convex lens ? |
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| 9704. |
What are electromagnet |
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Answer» Electrmagnet is made by giving current to soft iron when kept in solinoed. A magnet magnet put in a solenoid behave like a bar magnet is the electric current flowing in the circuit is called ElectromagnetIt increase the strength by following condition1.) Increase the number of stunning2.) more current should be passed A soft metal core made into a magnet by the passage of electric current through a coil surrounding it. |
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| 9705. |
What is strong acid ? |
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Answer» A acid which has more hydrogen (H+) ions and the pH level of acid is low then we say that the acid is strong Acids which completely ionized to give H+ ions they strong acids A strong acid is one that is completely dissociated or ionized in an aqueous solution. It is a chemical species with a high capacity to lose a proton, H+. In water, a strong acid loses one proton, which is captured by water to form the hydronium ion: HA(aq) + H2O → H3O+(aq) + A−(aq) Examples HCl and H2SO4 . An acid which dissociates completely on dissolving in water is called strong acid. |
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| 9706. |
What is PH scal |
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Answer» Ph is a quantity of hydrogen present in substances what is reflection of light |
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| 9707. |
What is homologous series? Explain with an example |
| Answer» A homologous series is a series of carbon compounds that have different numbers of carbon atoms but contain the same functional group. For example, methane, ethane, propane, butane, etc. are all part of the alkane homologous series. The general formula of this series is CnH2n+2. | |
| 9708. |
HOW DO HUMAN INTERSEXYAL CORSE HAPPEN SEND ME VIDEO |
| Answer» | |
| 9709. |
How many cell in human body |
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Answer» Million,trillion a human body contains cell,because every single tissue made from cells.Cells are structural and funtioning unit of life. Cell_Tissue_Organ_Organ System_BodyPart to Human Body Infinity Infinite cells are present in our body Uncountable Countless |
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| 9710. |
Explain the process of digestion of food in mouth ,stomach and small intestine in human body |
| Answer» When the food enters in our mouth ,it is chewed by teeth ( pysical digestion).In our mouth salivary glands are present which produce saliva that contain salivary amylase which helps in digesting starch into sugar .The food is mixed with saliva the food enters in our food pipe or oesophagus with the help of tongue .the lining of canal has muscles which help in contract rhythemically for pushing the food forwardThis is called peristaltic movements and food enters into stomach.The stomach contain gastric juices which contain hcl, mucus and pepsin enzymes .The muscular walls of stomach helps in churning the food with hcl which makes food acidic ,that activates the enzyme pepsin.This was the digestion of food till stomach now i cann\'t write more . I am very very sorry☺? | |
| 9711. |
Why nutrition considered one of the most important in life process? |
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Answer» Nutrition is important in life process because energy is needed to maintain our good life Nutrition considered one of the most important life process because energy is needed to maintain a good life process .we obtain energy in the form of food .we need food in order to grow ,develop,synthesis protien and other substances needed in the body. As it fulfill all the energy needs, provide glucose, for maintaining our life |
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| 9712. |
How do sexual reproduction? |
| Answer» The punctuation marks are: period, comma, question mark, hyphen, dash, parentheses, apostrophe, ellipsis, quotation mark, colon, semicolon, exclamation point. The student then writes down the punctuation marks and an example for each. These include the period, comma, exclamation point, question mark, colon, semicolon, bullet point, dash, hyphen, parenthesis, bracket, brace, ellipsis, quotation mark, and apostrophe. The following are a few examples of these marks being used in a sentence. | |
| 9713. |
How many electrons contains 0.5 coulomb charge |
| Answer» 6.25*10 to the power of 18 contains 1 coulomb of charge.Just half it 6.25*10 to the power of 18/2=3.125 * 10 to the power of 18. | |
| 9714. |
hydrogen ion concentration of an acid is 1× 10^-2 mol/l what is its ph |
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| 9715. |
What do we call those particles what have more electron than the normal atoms? |
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Answer» Anion Having more electron is known as anion and having less electron is called cation. |
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| 9716. |
Thermal power ernergy converts into which type of energy |
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Answer» Thermal power plants convert chemical energy into heat energy Chemical energy Chemical energy into electrical energy Thermal power plants chemical energy (in coa) is converted into heat energy. |
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| 9717. |
What are the Functions of saliva present in mouth |
| Answer» The digestive functions of saliva include moistening food, and helping to create a food bolus, so it can be swallowed easily. Saliva contains the enzyme amylase that breaks some starches down into maltose and dextrin. Thus, digestion of food occurs within the mouth, even before food reaches the stomach. | |
| 9718. |
Bacteria used for making curd |
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Answer» Lactobacillus Lactobacillus Lactobacillus bacteria Lactic acid Yes |
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| 9719. |
How many types chlorophyll |
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Answer» 3 types Chlorophyll \'a\' in photosynthetic organisms except bacteria. Chlorophyll \'b\'in plants and green algae. Chlorophyll \'c\' ,\'d\',\'e\' in non-green algaes . 5. Chlorophyll a,b,c,d and e. |
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| 9720. |
Can a displacement reaction be a redox reaction ? Justify your answer. |
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Answer» Displacement reaction is a also redox reaction, as in this reaction, the less reactive reactant gets reduced and the more reactive reactant gets oxidized.In the following reaction Fe displaces Cu from CuSO4.Fe gets oxidised while Cu gets reduced.Fe(s) + CuSO4(aq) → FeSO4(aq) + Cu(s) Yes. |
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| 9721. |
-log (H+) |
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| 9722. |
a plant parasite |
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Answer» Yellow rattle Cuscuta(amarbel) Pitcher plant |
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| 9723. |
If magnification is -3 then ,what is the position of object and image |
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| 9724. |
A thin layer of water is transparent but a very thick layer of water is called |
| Answer» Water in a thick layer has multiply strata. Each strata consists of multiple layers of water molecules which have hydrogen bond between them.Now as water is passing through each layer of water, there is refraction. Hence due to multiple layers of water, there seems to be decreases in the parallel rays. Hence the transparency of the light decrease. Also there are many dissolved salts in water. They reflect the rays of light. Hence deep water seems to be translucent.A thin layer of water is transparent but a thick layer of water is translucent as lateral shift depends on thickness of the object. | |
| 9725. |
living things |
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Answer» Molecular movement in any organism. Anything that has capability to live is called living things |
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| 9726. |
Chapter 2 chemstry full notes |
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| 9727. |
about burmuda traingle |
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Answer» thanx bro The Bermuda Triangle is also known as the Devils Triangle. It is an area located on the north western Atlantic, in the country of International waters, The Bahamas. The Bermuda Triangle is an extremely dangerous area for one to enter. Aircrafts and surface vessels are believed to have vanished in weird ways which are considered human error, piracy, equipment failure, or natural disasters. Important things in society have shown some of these disappearances could have been the laws of physics, paranormal, or actions performed by aliens.I. The Triangle is located between the cities of Fort Lauderdale, Bermuda, and Puerto Rico.A. The Bermuda Triangle is nicknamed the Devil’s Triangle.B. In this triangle, it is said that a lot of things in weird ways happen.II. One of the most famous disappearances is the Naval Air Flight 19.A. 13 Avenger bombers handled by Lt. Charles Taylor left the Naval Air Station in Fort Lauderdale on routine mission to practice bombing.B. As they all were trying to go back home, Lt. Robert Cox overheard them trying to communicate over the radio.1. Lt. Taylor informed Lt. Cox that they were in the Florida Keys, but didn’t know how to get back to Fort Lauderdale.2. Lt. Taylor was actually over the Bahamas not the keys and only kept going to go further out into the sea.III. Rescue teams were sent out to find Flight 19.A. A Martin Mariner did not make its schedule and did not answer calls.B. Flight 19 was never found, neither was the Mariner. please answer me |
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| 9728. |
Explain the activity how do acid and Bases react with metal |
| Answer» Acids react with most metals and a salt is produced. But unlike the reaction between acids and bases we don\'t get any water. Instead we get\xa0hydrogen gas.This is the general word equation for the reaction:metal + acid\xa0→\xa0salt + hydrogenSaltsThe salt produced depends upon the metal and the acid. Here are two examples:zinc + sulphuric acid\xa0→\xa0zinc sulphate + hydrogenmagnesium + hydrochloric acid\xa0→magnesium chloride + hydrogenIt doesn\'t matter which metal or acid is used, if there is a reaction we always get hydrogen gas as well as the salt.The test for hydrogenThere is a simple laboratory test to see if a gas is hydrogen. A lighted wooden splint goes pop if it is put into a test tube of hydrogen. This is because the flame ignites the hydrogen, which burns explosively to make a loud sound.Acids and hydrogenAll acids contain hydrogen atoms. Apart from hydrochloric acid, this is not clear from their names, but you can tell they contain hydrogen from their chemical formulae. Remember that the chemical symbol for hydrogen is H | |
| 9729. |
Give name of some life process with definition |
| Answer» Types of Life Processes\tNutrition : Nutrition is the process of taking food by an organism and the utilization of food for energy. This is a vital process, which helps living beings to obtain their energy from various sources.\tTransportation: Transportation and transportation system in plants and animals are entirely different. In animals, transportation is carried out through the circulatory system. This system includes the heart, blood, and blood carrying blood vessels.\tMetabolism : Metabolism is the chemical process in which different types of chemical reactions involved in controlling the living state of the cells in an organism. It is broadly classified into catabolism and anabolism.\tRespiration : Respiration includes the exchange of gases as well as the burning of food. Animals have a well defined respiratory system for respiration.\tReproduction: The biological process of reproducing their own offspring determines the continuity of species, generation after generation. The basic types of reproduction are sexual and asexual reproduction.\tExcretion: Elimination of toxic waste substances from the body is called excretion. There are various modes of\xa0excretion and it generally differs with the different types of living species. | |
| 9730. |
Refraction means |
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Answer» Refraction means bending of light when light enters from one medium to another.....HOPE THIS WILL HELP U?? The fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density.change in direction of propagation of any wave as a result of its travelling at different speeds at different points along the wave front.measurement of the focusing characteristics of an eye or eyes. |
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| 9731. |
Why do not kept phosphorus in kerosene oil |
| Answer» To prevent the contact of phosphorus with atmospheric oxygen,it is stored in water. ... It reacts vigorously with oxygen and water. A lot of heat is generated in the reaction. It is, therefore,stored in kerosene | |
| 9732. |
Where and why kept phosphorus |
| Answer» Phosphorus react vigorously with Oxygen present in air. So it is kept in water as in water hydrogen content is greater than oxygen. As it is dangerously reactive in air, it should be handle with forceps, as contact with skin | |
| 9733. |
Owm |
| Answer» I think you mean ohm It\'s spelling is ohm not owm. The SI unit of electrical resistance, transmitting a current of one ampere when subjected to a potential difference of one volt. | |
| 9734. |
What is the difference between arteries , veins and capillaries |
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Answer» Artery: Arteries carries oxygen rich blood from heart to all parts of the body.The walls are thick.Vein: Vein carries co2 rich blood from all parts of the body to heart.The walls are thin.Capillaries: Capillaries are the blood vessels on the terminating point of arteries and veins. Capillaries connect the arteries to veins. The arteries deliver the oxygen-rich blood to the capillaries, where the actual exchange of oxygen and carbon dioxide occurs. The capillaries then deliver the waste-rich blood to the veins for transport back to the lungs and heart. Veins carry the blood back to the heart. |
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| 9735. |
Base and their chemical properties |
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Answer» Properties of Base:– Produce hydroxide ions [OH –] in H2O.– Water soluble bases are called alkalies.– Bitter Taste– Turn Red Litmus blue.– Act as electrolytes in Solution.– Neutralize solutions containing H+ ions.– Have a slippery, ‘soapy’ feel.– Dissolve fatty material. Search on chrome or brainly.in webst its answer is their. |
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| 9736. |
A lamp of 480 ohm connected with battery of 24 volt battery find the current going in the lamp |
| Answer» 240 anns | |
| 9737. |
Which one is a chemical change - rusting of iron or melting of iron |
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Answer» Rusting of iron Rusting of iron |
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| 9738. |
What are law of mendal explain in brief to each law ? |
| Answer» The two experiments lead to the formulation of Mendel’s laws known as laws of inheritance which are:\tLaw of Dominance\tLaw of Segregation\tLaw of Independent AssortmentLaw of DominanceThis is also called as Mendel’s first law of inheritance. According to the law of dominance, hybrid offsprings will only inherit the dominant trait in the phenotype. The alleles that are suppressed are called as the recessive traits while the alleles that determine the trait are known as the dormant traits.Law of SegregationThe law of segregation states that during the production of gametes, two copies of each hereditary factor segregate so that offspring acquire one factor from each parent. In other words, allele (alternative form of the gene) pairs segregate during the formation of gamete and re-unite randomly during fertilization. This is also known as Mendel’s third law of inheritance.Law of Independent AssortmentAlso known as Mendel’s second law of inheritance, the law of independent assortment states that a pair of trait segregates independently from another pair during gamete formation. As the individual heredity factors assort independently, different traits get equal opportunity to occur together. | |
| 9739. |
Wher is cell membrane present ? |
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Answer» Outer layer of cell is called cell membrane or plasma membrane It is present outside of the cell.It is also known as plasma membrane. It protects the cell from injuries Protect them to inside the food not go outside. Change in out Fist layer of cell Outside the cell to protect it from external ingury |
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| 9740. |
What is heat and trial methd |
| Answer» Hit and Trial MethodThe simplest method to balance a chemical equation is by the hit and trial method also called the trial and error method.The method involves the following steps:Step 1: Write the correct formulae of the reactants and the products with plus signs in between with an arrow pointing from the reactants to the products. This is called the skeleton equation.Step 2: Select the largest formula from the skeleton equation and equalise the number of atoms of each of its constituent elements on both sides of the chemical equation by suitable multiplications.OrBalance the atoms of that element which occurs at the minimum number of places on both sides of the chemical equation first. Atoms which occur at a maximum number of places are balanced last of all.Step 3: When an elementary gas (diatomic) such as hydrogen, oxygen, chlorine or nitrogen appears as a reactant or a product, the equation is balanced more easily by keeping the elementary gas in the atomic state. The balanced atomic equation is then made molecular by multiplying the whole equation by two.Step 4: Verify that the number of atoms of each element is balanced in the final equation.Step 5: The chemical equation can be made more informative by mentioning the physical states of the reactants and the products. Thus, the gaseous, liquid, aqueous and solid states of the reactants and products are represented by the notations (g), (l), (aq) and (s), respectively. | |
| 9741. |
Function of all parts of eye |
| Answer» \tSclera: It is the outer covering, a protective tough white layer called the sclera (white part of the eye).\tCornea: The front transparent part of the sclera is called cornea. Light enters the eye through the cornea.\tIris: A dark muscular tissue and ring-like structure behind the cornea are known as the iris. The colour of iris actually indicates the colour of the eye. The iris also helps regulate or adjust exposure by adjusting the iris.\tPupil: A small opening in the iris is known as a pupil. Its size is controlled by the help of iris. It controls the amount of light that enters the eye.\tLens: Behind the pupil, there is a transparent structure called a lens. By the action of ciliary muscles, it changes its shape to focus light on the retina. It becomes thinner to focus distant objects and becomes thicker to focus nearby objects.\tRetina: It is a light-sensitive layer that consists of numerous nerve cells. It converts images formed by the lens into electrical impulses. These electrical impulses are then transmitted to the brain through optic nerves.\tOptic nerves: Optic nerves are of two types. These include cones and rods.\tCones: Cones are the nerve cells that are more sensitive to bright light. They help in detailed central and colour vision.\tRods: Rods are the optic nerve cells that are more sensitive to dim lights. They help in peripheral vision. | |
| 9742. |
who make science |
| Answer» The development of the scientific method had its earliest beginnings in the works of Parmenides. It was set forth systematically by Aristotle in his Organon. But the scientific method achieved its first modern form in the work of Roger Bacon, who began the systematic use of mathematics in science. | |
| 9743. |
Pb(no3)2----->pbo+no2+o2 |
| Answer» It\'s a decomposition reactions. Pbno32 is yellow and pbo.colorless and no2 brown fumes | |
| 9744. |
Where should hydrogen be placed in the periodic table?give reason for your answer. |
| Answer» Pb(no3)2---->pbo+no2+o2 | |
| 9745. |
What is the role of magnetism in medicine |
| Answer» Magnets, in medicine, are used to nuclear magnetic resonance (MRI) to diagnose abnormal human tissues and distinguish diseases. This is our familiar magnetic resonance imaging technique. The principle is that the nucleus has a positive electricity, and the spin motion is carried out.Normally, the arrangement of the spin axis of the nucleus is irregular, but when it is placed in an external magnetic field, the orientation of the spin space transits from disorder to order. The magnetization vector of the spin system is gradually added from zero. When the system reaches equilibrium, the magnetization reaches the stationary value. Suppose that the nuclear spin system is affected by the external effect at the moment, such as the radiofrequency excitation of the nucleus at a certain frequency can cause the resonance effect.MRIAfter the radiofrequency pulse is broken, the nucleus of the spin system can not adhere to this situation. It will return to the position of the original in the magnetic field and release the small energy into the radio signal. The characteristic of NMR is that no signal occurs in the active liquid. It is called activity effect or activity blank effect. So the blood vessels are gray and white, and the blood is black without | |
| 9746. |
What is the meaning of resister |
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Answer» Resistor is defined as: A passive electrical component with two terminals that are used for either limiting or regulating the flow of electric current in electrical circuits.The SI unit of resistor is Ohm. One that resist especially |
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| 9747. |
What are occuptional hazard |
| Answer» An occupational hazard is a disease which we get due to our occupation. An example is the sorters disease .People working in the sorters departmnt ( in the factory where wool is sorted ) are infected by this bacterium called anthrax. which causes this fatal Occupational hazard is the term used for risk or the consequences involved with a particular occupation.Mostly mental stress and the physical risks are encountered while working with industries. Physical risks may involve any disease or injury whereas, mental stress can be due to work pressure. It is the responsibility of company to take proper care of its employees & their health.Some examples of the occupational hazards are:Excessive noise and heat are commonly found problems in industries, which can affect the hearing of workers.In chemical industries, employee deals with harmful and dangerous chemicals which can burn their skin, also their powerful smell can cause breathing problems. | |
| 9748. |
What is meant by electric power and derive it\'s formula |
| Answer» The rate at which electric energy is dissipated or consumed in an electric circuit is called electric power. It\'s SI unit is Watt (W). power = work done / time taken. we know that work done by current I when it flows for time T under potential difference V is given by : W = V*I*T joules. | |
| 9749. |
Explain any two rules played by PH levels of various chemicals in living organisms |
| Answer» Effect on Flora: Acid rain is particularly harmful to trees and other plants. Acid rain adds aluminum to the soil and destroys important nutrients. As a result, trees and plants are less able to absorb the ground water they need for growth. Additionally, acid rain generally damages plant health, making them less resistant to insect damage and disease. Acidic water similarly affects aquatic plant life, destroying important food sources.Effects on Microorganisms: In addition to the direct effects on fish, acid water also destroys ecosystems by killing organisms lower on the food chain. For example, the Pennsylvania Department of Environmental Protection found that mayflies are particularly vulnerable to acidic water, because it lowers sodium in the blood. Consequently, species feeding on mayflies will leave an affected area or starve.Effects on fishes: Harmful effects become noticeable when the pH of water falls below 5.0 or rise above 9.6. Ill effects due to acidification are more pronounced in saltwater fish due to their adaptation to a higher pH. When pH is below optimal levels, fish become susceptible to fungal infections and other physical damage ¹⁶. As the pH of water falls, the solubility of calcium carbonate is reduced, inhibiting shell growth in aquatic organisms ¹⁶. In general, fish reproduction is affected at pH levels below 5.0 and many species (such as saltwater fish or sensitive freshwater fish like smallmouth bass) will leave the area ²¹. Fish begin to die when pH falls below 4.0 ¹².\xa0 | |
| 9750. |
What happen if platelets are not present in blood? |
| Answer» The blood platelets are required for the process of blood clotting. Whenever there is an injury, to prevent the loss of blood it is necessary to form a clot. The vitamin K, clotting factors, calcium ions and the platelets are necessary agents for the formation of a blood clot. If there are no platelets, there will be no clot formation. This might result in haemorrhage in which there is continuous blood loss. | |