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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.
| 9301. |
A balloon when kept in sun, burst after some time. Why ? |
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Answer» Expletive can be many answers your question but I will tell to of below so alone when captain sunburst after sometime because the pressure in the balloon becomes low then the pressure near the sun because of the fourth hot gases and also the sun\'s heat the kinetic energy of particles in the balloon increases and it expands it continues to expand and compress stage when the balloon ? bursts okay A balloon when kept in sun , brust after some time. Because the pressure is low then the pressure near the sun Mcq Due to the sun\'s heat, the kinetic energy of particles in the balloon increases and it expands. It continues to expand and comes to a stage when the balloon bursts |
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| 9302. |
athematically show that Newtons second law contain first law. |
| Answer» This question is wrong | |
| 9303. |
What is the cell wall |
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Answer» The outermost layer of cells in plants, bacteria, fungi, and many algae that gives shape to the cell and protects it from infection. In plants, the cell wall is made up mostly of cellulose, determines tissue texture, and often is crucial to cell function to Compare cell membrane. Cell wall is rigid outside layer present in plant cell made up of cellulose. It protects cell from harsh weather conditions. It is present outside cell membrane. Cell wall is rigid outside layer present in plant cell made up of cellulose. It protects cell from harsh weather conditions. It is present outside cell membrane. |
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| 9304. |
Can a homogeneous mix have a variable compotion justify giving an answer |
| Answer» No. It has only a uniform composition throughout the beaker . It particles mix with each other properly in such a way that we can\'t see through naked eye.Also its particles are very small and cannot be seperated by process of filteration. If any mixture have variable composition then it is consider as hetrogenous mixture.a | |
| 9305. |
Types of stemmers |
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| 9306. |
Chemical name of sulphuric acid |
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Answer» H2SO4 - sulphuric acid Chemical name for sulphuric acid is H2SO4 |
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| 9307. |
Chemical formula of lead(ii) chloride |
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Answer» Chemical formula of chloride isCl Mam we have to write thory in 2.3 exercise |
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| 9308. |
The frequency of a visible light of wavelength 600 nm is (speed of light = 3×10⁸ m/s), (1nm = 1‐⁹ m) |
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Answer» Options :- a) 50Hzb) 5 × 1014 Hzc) 0.5 × 1016 Hzd) 500 HzPlease I need the answer The wavelength of the light is,lamda = 600 nm =600 × 10-⁹ m |
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| 9309. |
Why we are advised to take nutritional food when we are sick |
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Answer» All the normal functions of the body get disturbed in case illness. So, a nourishing food is required, which is easily digestible and contains all the nutrients. This is the main reason that bland and nourishing food is advised to take during sickness.Because it helps in our nutritional growth All the normal functions of the body get disturbed in case illness. So, a nourishing food is required, which is easily digestible and contains all the nutrients. This is the main reason that bland and nourishing food is advised to take during sickness. Hdis Because it helps in our nutritional growth |
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| 9310. |
Explaine the difference between 2N and N^2 |
| Answer» 2N means to molecules of Nitrogen atom. N^2 two atoms of nitrogen in its one molecules. N^2 shows that two atoms are bonded with covalent bond, and it become nitrogen gas whereas 2N doesn\'t show any bond, it just show two numbers of nitrogen only. | |
| 9311. |
How do we calculate valency??? |
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Answer» If the number of electrons in the outer shell is between 1 to 4 the compound is said to have positive valency. For compound with electrons 4,5,6, or 7 the valency is determined by subtracting the electrons from eight U can use electronic configuration Like in oxygen 2,6 which add up to 8 which is its atomic no. The general e.c. should be following 2,8,8 like that So it\'s missing two electronsSo it will be -2 |
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| 9312. |
Wnat is osmosis |
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Answer» Diffusion of solvent molecules through semi-premerable from the region low concentration to region of high concentration form osmosis The movement of water molecules through a selective permeable membrane along the conversation gradient is called osmosis.Osmosis is also defined as the water molecules from a region of its higher concentration through a semipermeable membrane. Osmosis is the special type of diffusion in which it only take place in liquids.The concentration of solvent from region of higher concentration to the region of lower concentration.Like exchqnge of water in plants a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one. |
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| 9313. |
What is elemant |
| Answer» each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances and are primary constituents of matter. Each element is distinguished by its atomic number, i.e. the number of protons in the nuclei of its atoms. | |
| 9314. |
What ia sustainable development |
| Answer» Sustainability is development that satisfies the needs of the present without compromising the capacity of future generations, guaranteeing the balance between economic growth, care for the environment and social well-being. | |
| 9315. |
Name the three types of simple tissue |
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Answer» The types of simple tissues are parenchyma, collenchyma, sclerenchyma and aerenchyma. There are three types of simple tissue 1parenchyma2 Collenchyma3 seclenchyma |
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| 9316. |
Science ncert |
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| 9317. |
An aeroplane attains a velocity of 200m/ s; in 30 on it\'s track. Calculate it\'s acceleration. |
| Answer» Initial velocity = 0 m/s (as it starts from rest) Final velocity = 200m/sTime = 30 secondsAcceleration = v - u/t =200 - 0/30 = 6.6 m/s² | |
| 9318. |
What is metalliods |
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Answer» Metalloids are elements having some properties of metals and some properties of nonmetals Metalloids are the elements which are having a combination of some properties of metals along with some properties of nonmetals. Their properties are intermediate between the properties of metals and nonmetals, they are also called semi-metals.Example: – Boron, Silicon, Germanium, etc |
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| 9319. |
What is an atom and molecules? |
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Answer» An\xa0atom is the smallest particle\xa0of the element that can exist independently and retain all its chemical properties. A\xa0molecule\xa0is the\xa0smallest particle\xa0of an element or a compound capable of independent existence under ordinary conditions. It shows all the properties of the substance.\xa0Electrons\xa0are the smallest of the three particles that make up atoms.\xa0Electrons\xa0are found in shells or orbitals that surround the\xa0nucleus of an atom.\xa0Protons\xa0and\xa0neutrons\xa0are found in the\xa0nucleus. They group together in the center of the atom. The smallest particle of matter, which can take part in a chemical reaction is called atom.Question 5. Define molecule.Answer:\xa0The smallest particle of an element or compound which can exist independently is called molecule. Atom is the smallest particle that combine to form molecules.Molecules are the smallest particle that combine to form matter |
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| 9320. |
Simple way to learn atomic mass of element |
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Answer» Atomic mass =mass of one atom of an element Andy Hulu zebu sleep friction Atomic mass refers to the mass of an atom. It depicts how many times an atom of an element is heavier than one-twelth (1/12th) the mass of one atom of carbon-12 of mass of one carbon atom. The relative atomic masses of all elements have been established with reverence to an atom of carbon-12. It is measured in unit called amu (atomic mass unit). 1/12 of the mass of one atom of carbon is termed as relative atomic mass. It doesnot possess a unit.Mathematically,mass of one atom of an element = atomic mass\xa0X\xa0(1/12th) of the mass of one atom of carbon.\xa0Oratomic mass = mass of one atom of an element\xa0/\xa0(1/12th) of the mass of one atom of carbon. |
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| 9321. |
1. Describe the structure of the nuceleous ? |
| Answer» \tThe nucleus is small, round and membrane bound structure found in cell.\tThe fluid inside the nucleus surrounded by nuclear membrane is called nucleoplasm.\tIt controls the cell’s growth and reproduction because it contains cell\'s hereditary information.\tIt is covered by dual layer called nuclear membrane.\tThe nuclear membrane contains pores due to which materials can travel both inside the nucleus from its outer surrounding i.e. cytoplasm.\tThe nucleus contains some thread like structures called chromatin. It exists during the resting stage of cell.\tThe chromatin contains DNA (Deoxy-ribo nucleic acid), RNA (Ribo Nucleic acid) and proteins.\tThe nucleus contains some rod shaped structures in a cell that contains the hereditary information. They are called chromosome | |
| 9322. |
What are the properties of compounds? |
| Answer» -They cannot be separated into their constituents by physical means-They have fixed composition-They have fixed metling and boiling point-They are homogeneous in nature-They do not show the properties of their constituents-Energy is involved | |
| 9323. |
2. The motion of the moon around the earth both is due to the |
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Answer» Gravitation A rotation is a circular movement of an object around a center of rotation. The moon revolves around the earth in a regular path. The gravitational attraction between the earth and the natural satellite holds it in its orbit even as the earth revolves around the earth. Rotation of moon around the earth repeats after regular intervals of time hence it is a periodic motion |
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| 9324. |
Why is ice at 273k more effective in cooling than water at the same tamperature |
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Answer» To achieve the room temperature, the ice at 273 K will absorb latent heat as well as thermal energy. Water at a temperature of 273 K would just absorb heat energy to achieve room temperature. Thus, water at 273 K will absorb less environmental heat energy than ice at 273 K. Therefore ice at 273 K more effective in cooling than water at the same temperature. Ice at 273k has less energy than water (although both are at the same temperature)water possesses the addtional latent heat of fusion Hence ,at 273k ,ice is more effective in colling than water |
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| 9325. |
Thr largest cell in the human body is: |
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Answer» Neuron or nerve cell Nerve cell Nerve cell Nerve Cell ( Neuron ) Neuron |
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| 9326. |
Name the 3 subatomic particles of an atom |
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Answer» Electron , protone,neutron Electron, Proton and Neutron are the three subatomic particles of an atom |
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| 9327. |
What is the valency of aluminum?? |
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Answer» ????? To the point answer is +3 The\xa0valency\xa0of\xa0aluminium\xa0is 3 instead of 5 because the energy required to remove 3 electrons from the outermost shell is less than the energy required to add 5 electrons.\xa0Because\xa0aluminum\xa0has\xa0three, that means\xa0three\xa0fluorines can bond. The make the formula AlF3, also known as\xa0aluminum\xa0trifluoride. Each of the fluorine atoms gets an\xa0electron\xa0to fill their shell, and the\xa0aluminum\xa0loses\xa0three, giving it a filled shell too (remember,\xa0aluminum\xa0has\xa0three\xa0extra\xa0electrons). |
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| 9328. |
Which cell called a traffic police |
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Answer» Golgi apparatus is called the traffic police of cell as it acts as assembly area for the storage processing and packaging for various cell secretions To the point answer is GOLGI VESICLES LysosomesThe sac-like structures in a cell surrounded by membrane are called lysosomes.They keep the cells clean by digesting and breaking the outside materials like bacteria, food entering the cell or worn-out cell organelles into small pieces.They can digest these organic materials due to the presence of strong digestive enzymes that can brreak down organic compounds. Therefore, lysosome is also known as a suicide sac.Many scientists believe that lysosomes are not present in plant cells and their function of lysosomes in plants is performed by vacuole. Lysosome is the suicidal bags of the cell . It burst the cell when there is any damage to the cell . What is a lysosome |
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| 9329. |
Which is a heterogeneous solution? A. Air B Brass C Sugar dissolved in water D lime water |
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Answer» Brass B brass ????????????✌️✌️???????????????????????? (B) Brass Mixtures which do not have uniform composition throughout are called Heterogeneous Mixture. For example – mixture of soil and sand, mixture of sulphur and iron fillings, mixture of oil and water etc. The boundaries of constituent particles of a homogeneous mixture can be identified easily; as a homogeneous mixture has two or more distinct phases. |
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| 9330. |
what is grana |
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Answer» Grana - A series of stacked thylakoid disks, found in the inner membrane of chloroplasts. Grana are connected by intergranal lamellae.Grana function in the light reactions of photosynthesis. The grana of chloroplast consists of pigment system made upof chlorophyll-a, chlorophyll-b, carotine and xanthophyll. the stacks of thylakoids embedded in the stroma of a chloroplast. |
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| 9331. |
Edy |
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| 9332. |
What ia the structure of atom?????? |
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Answer» Structure of atom is a positevely charged sphere in which electrons are embedded......its structure is like watermelon......red part of water melon is positively charged and the seeds of it are the electrons which are embedded in it....ANSWER Structure of atom is like sphere and watermelon |
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| 9333. |
What is time period and what is the relation between time period and frequency |
| Answer» The time period of oscillation of a wave is defined as the time taken by any element of the string to complete one such oscillation.As we know the distance travelled by a wave is nothing but its wave length l (in case of producing one wave), the time taken to produce a wave its time period (t).\xa0Speed of the wave is the distance travelled the wave due to the production of one wave.Speed of a wave (v) = Distance (l) / Time (t) v = l /t | |
| 9334. |
Give the name and calculate the molar mass of componds given below (1)Al2(So4)3 |
| Answer» It\'s aluminium sulphate....molar mass is 134g | |
| 9335. |
Is atomic mass and valency same thing??? |
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Answer» Okhh!!...thankss Not at all!!!! atomic mass is the sum of neutron and proton where as valency depicts the no. Of electrons donated or gained.... |
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| 9336. |
Derive the equation v=u+at |
| Answer» T = timea = accelerationv = velocityu = initial velocitya = (v-u)/tat = v-uat + u = vTherefore v = u + at | |
| 9337. |
Chapter12 activity 12.2 give the answer of that question |
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| 9338. |
Tabult The different in the characteristics of three states of matter |
| Answer» \tSolidLiquidGasesSolid has fixed volume.Liquid has definite volume.Gas has no fixed volume.Solid has fixed shape.Liquid has no definite shape.Gas has indefinite shapeSolid has high density.Liquid has less density compare to solid.Gas has very low density.Solids are heavy.Liquid is lighter than solid.Because of low density gas are light.Solid does not flow.Liquid flows and hence is called fluid .Gas can flow easily and hence are called fluid.\t\xa0 | |
| 9339. |
What is the another name of law of conservation of mass ? |
| Answer» First law of thermodynamics | |
| 9340. |
A student wants to have 3.011 X 7 |
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| 9341. |
Why atom has 8 electron in outermost shell |
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Answer» Because of octet rule sry it is 2n^2 Because it fllows the formula 2n^3 |
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| 9342. |
What are producer? |
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| 9343. |
What are the different means by which infections disesases are spread ?? |
| Answer» The different means by which infectious diseases spread are:(i) By direct contact between a healthy and an infected person.(ii) By indirect contact between a healthy and an infected person.(iii) Through air.(iv) Through food.(v) By vectors such as mosquitoes and insects, etc.(vi) By the bite of a rabid animal. | |
| 9344. |
What is the principle of fractional distillation process |
| Answer» The principle of fractional distillation is that different liquids boil at different temperature. The miscible liquids boil at different temperature and evaporate at different temperature.When the mixture is heated, the liquid with lower boiling point boils and turns into vapours. So the mixture is heated to a temperature at which one or two components of the mixture will vaporise. Fractional distillation involves repeated distillations and condensations.\xa0 | |
| 9345. |
A sound singal of 128 vibrations per second has a wavelenth if its frequence is 512 vibration/second |
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| 9346. |
What will happen if distance between two objects is halfed (Gravitation) |
| Answer» The gravitational force become 4times | |
| 9347. |
What are homogeneous and heterogeneous mixtures? |
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Answer» Susan is the probability of the same way that i am in a position so much love you and \tHomogeneous mixtureHeterogeneous solutionsAll solutions are the examples of homogeneous mixture.Most of the mixtures are heterogeneous except solutions and alloys .The particles of a homogeneous mixture are less the one nanometer.The constituent particles are present uniformly in a heterogeneous mixture.A homogenous mixture does not show Tyndall effect.Heterogeneous mixtures show Tyndall effect.The boundaries of particles cannot be differentiated.Generally, two or more phases are present in a heterogeneous mixture.The constituent particles of homogenous mixture cannot be separated using centrifugation or decantation.Particles of a heterogeneous mixture are sized between one nanometer and one micrometer or more.Alloys are the examples of solution.The components of a heterogeneous mixture can be identified easily.\t\xa0 |
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| 9348. |
What is life ?????? |
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Answer» It\'s like a history lesson.... difficult but teaches new things everytime.... And one more which is responsible for our parent life ..... Life is life a candal jo khatam toh ho but lighting all the area? |
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| 9349. |
How will absences of any one of the cell organelles affect the cells working |
| Answer» If there is no ribosome then the cell membrane not get protine and become week | |
| 9350. |
What is kinetic and potential energt |
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Answer» Kinetic energy is an energy that possess by an object while moving.Energy that an object possess due to its position called potential energy •kinetic energy possess by motion.(eg-when a car is moving with some velocity then it has kinetic energy).•Potential energy possess by it\'s position.(eg- suppose when a stone hight A then stone has potential energy). |
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