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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.
| 2101. |
Name the metal which is most abundant in earth\'s crust.?❔❔ |
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Answer» Thank you .....?? Please dont take serious i just joked before him to rescue mam Ishika why did u thank me Aluminum is the most abundant metal on earth crust Aluminum |
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| 2102. |
Intext question of chapter chemical reaction and equation |
| Answer» See ur ncert tb or refer to this app | |
| 2103. |
Which one? concentrated or diluted acid is good conductor? |
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Answer» Concentrated Concentrated is concentrated Hi vanshika |
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| 2104. |
What is a function of opic nerve in human eye? |
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Answer» Y Thx The main function of the optic nerve is to transfer visual information from the retina to the vision centers of the brain via electrical impulses |
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| 2105. |
What is the atomic number of sulphur |
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Answer» 16 16 16 16 |
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| 2106. |
I can\'t able to understand the topic reaction form ch 1 |
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Answer» Most wlcm?? Thanks YouTube videos will definitely help u |
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| 2107. |
Parsec is the unit of: |
| Answer» One parsec is defined as the distance at which an arc of length one astronomical unit subtends an angle of one second of an arc .1 parsec = 3.08 x 1016m. | |
| 2108. |
State the law of momentum . |
| Answer» Law of conservation of momentum states that "For two or more bodies in an isolated system acting upon each other, their total momentum remains constant unless an external force is applied. Therefore, momentum can neither be created nor destroyed." | |
| 2109. |
How the image form in TV? |
| Answer» Television is an amazing window on the world. At the flick of a button, you can travel from the North Pole to the Serengeti, watch men walking on the Moon, see athletes breaking records, or listen to world leaders making historic speeches. Television has transformed entertainment and education; in the United States, it\'s been estimated that children spend more time watching TV (on average 1023 hours a year) than they do sitting in school (900 hours a year). Many people feel this is a bad thing. One of TV\'s inventors, Philo T Farnsworth (1906–1971), came to the conclusion that television was hopelessly dumbed down and refused to let his children watch it. Whether TV is good or bad, there\'s no doubting that it\'s an ingenious invention | |
| 2110. |
How baby is formed as an embryo |
| Answer» During fertilization, the sperm and egg unite in one of the fallopian tubes to\xa0form\xa0a zygote. Then the zygote travels down the fallopian tube, where it becomes a morula. Once it reaches the uterus, the morula becomes a blastocyst. The blastocyst then burrows into the uterine wall — a process called implantation.\xa0The distinction\xa0between embryo\xa0and\xa0fetus\xa0is made based on gestational age. An\xa0embryo\xa0is the early stage of human development in which organs are critical body structures are formed. An\xa0embryo\xa0is termed a\xa0fetus\xa0beginning\xa0in the\xa011th week of\xa0pregnancy, which is the 9th week of development after fertilization of the egg. | |
| 2111. |
List two different function performed by pancreas in our body? |
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Answer» The pancreas is an organ located in the abdomen. It plays an essential role in converting the food we eat into fuel for the body\'s cells. The pancreas has two main functions: an exocrine function that helps in\xa0digestion\xa0and an\xa0endocrine\xa0function that regulates blood sugar.\xa0The\xa0pancreas\xa0produces enzymes to help break down proteins, fats and carbohydrates. Pancreas performs following two main functions in our body:-(i) Exocrine function: It works as an exocrine gland and helps in the digestion of food. It produces various enzymes such as amylase, lipase and trypsin which help to breakdown carbohydrate, fats and proteins respectively.(ii) Endocrine function: While working as an endocrine gland it secrets two major hormones, insulin and glucagon which regulate the level of sugar present in the blood. |
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| 2112. |
What is the funtion of voltmeter in an electric circuit? |
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Answer» To measure electric potential. A\xa0voltmeter\xa0is an instrument used for measuring\xa0electrical\xa0potential difference between two points in an\xa0electric circuit. Analog\xa0voltmeters\xa0move a pointer across a scale in proportion to the voltage of the\xa0circuit; digital\xa0voltmeters\xa0give a numerical display of voltage by use of an analog-to-digital converter.\xa0An\xa0ammeter\xa0is a measuring device used to measure the\xa0electric\xa0current in a\xa0circuit. A\xa0voltmeter\xa0is\xa0connected\xa0in parallel with a device to measure its voltage, while an\xa0ammeter\xa0is\xa0connected\xa0in series with a device to measure its current. |
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| 2113. |
Solved numericals of chapter ELECTRICITY |
| Answer» Na | |
| 2114. |
Give me notes of chapter chemical reaction and equation |
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Answer» O I have but where i send can i have WhatsApp number Ok It is present in this app |
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| 2115. |
?Why is Aluminium metal is called self protecting metal.❓❓ |
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Answer» Ishika your are most beautiful person where i never seen in my life When aluminium is exposed to the air, this overactive metal promptly reacts with the atmospheric oxygen to form aluminium oxide, which is a sticky natured compound of the same colour.Thus, the aluminium\xa0protects itself from any corrosion by the formation of a layer of aluminium oxide\xa0over the entire metal surface and thus, aluminium is termed as a self-protecting metal. Bae?? |
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| 2116. |
Full form of lid |
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Answer» Low impact development Low Impact Development Low impact development |
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| 2117. |
Which convex lens is called converging lens? |
| Answer» A convex lens is also called a converging lens because it makes parallel light rays passing through it bend inward and meet (converge) at a spot just beyond the lens known as the focal point. | |
| 2118. |
State the role of eye lens in the human eye?? |
| Answer» By changing its shape, the lens changes the focal distance of the eye. In other words, it focuses the light rays that pass through it (and onto the retina) in order to create clear images of objects that are positioned at various distances. | |
| 2119. |
What is KVL and KCL? |
| Answer» The KVL states that the algebraic sum of the voltage at node in a closed circuit is equal to zero. The KCL law states that, in a closed circuit, the entering current at node is equal to the current leaving at the node | |
| 2120. |
Device which is used to measure blood pressure |
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Answer» Sphygmomanometer Sphygmomanometer Google pe search maro??? Sphygmomanometer Sphygmomanometer |
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| 2121. |
डिफरेंस between mirror and lens. |
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Answer» I hope this helps you.?? 1.mirror has one reflecting surface while lens has 2 reflecting surfaces.2.mirror has one focus while lens has 2 focus.3.One side of mirror is silvered while lens has no silvered side.4.lens is used in spectacles while mirror is not used for spectacles.5.Mirror formula is 1/f=1/v+1/u while lens formula is 1/f=1/v-1/y.6.Light is refracted by lens while mirror can\'t reflect light. |
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| 2122. |
Working of dynamo |
| Answer» The electric dynamo uses rotating coils of wire and magnetic fields to convert mechanical rotation into a pulsing direct electric current through Faraday\'s law of induction and Lenz\'s law. | |
| 2123. |
Milk is veg or non-veg? |
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Answer» Non veg Semiterian Ofcourse bro milk is veg... |
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| 2124. |
Why did mendal choose pea plant for his experiment ? |
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Answer» Mere questions ka bhi answer de do...?? Its because pea plant grow two times in a year and it can breed many times than the other plant.☺️☺️ |
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| 2125. |
Limitations of modern periodic table |
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Answer» How??? U know, how i miss u???? a) Position of hydrogen: It could not assign a correct position to hydrogen in the table. (b) The lanthanides and actinides are not placed in the main body of the table. (c) Position of isotopes: There are no separate positions for isotopes of an element |
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| 2126. |
What is the colour of solid ferrous sulphate❓❓ |
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Answer» Thanks himanshi?? Light green Thanks both of u..☺️☺️☺️ Light green Light green |
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| 2127. |
How to find energy released by 1kg of Uranium-235? (Tell me the answer in step by step) |
| Answer» The atomic mass of 235U is approximately\xa0235 u, so the are 0.235\xa0kg of uranium\xa0per mole. The total binding\xa0energy released\xa0in\xa0fission\xa0of an atomic nucleus varies with the precise break up, but averages about 200 MeV* for U-235 or 3.2 x 10-11\xa0joule. This is about 82 TJ/kg. That from U-233 is about the same, and that from Pu-239 is about 210 MeV* per\xa0fission. | |
| 2128. |
What is the meaning oh pH |
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Answer» pH scale\tA scale developed to measure the concentration of hydrogen ion in a solution is known as pH scale where p in pH implies ‘potenz’ in German.\tpH scale ranges from 0 (highly acidic) – 14 (highly alkaline).\tThe pH of a neutral solution is 7.\tAcidic solution is represented by a value less than 7 on the pH scale.\tWhereas basic solution is represented by a value greater than 7 on the pH scale.\tAn increase in OH–\xa0ions concentration in the solution results in increase in the strength of alkali hence the value of pH increases.\tAcids giving rise to more H+\xa0ions are strong acids whereas those giving rise to less H+ ions are termed as weak acids pH means potenz hydrogen or power of hydrogen. |
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| 2129. |
What is organic chemistey |
| Answer» Organic chemistry is the study of the structure, properties, composition, reactions, and preparation of carbon-containing compounds, which include not only hydrocarbons but also compounds with any number of other elements, including hydrogen (most compounds contain at least one carbon–hydrogen bond), nitrogen, oxygen, ... | |
| 2130. |
What are types of decomposition reaction ? |
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Answer» 1. Thermal decomposition reaction 2. Electrolytic decomposition reaction3. Photo decomposition reaction.☺️☺️ \t\tThermal decomposition reaction\xa0A thermal decomposition reaction can be defined as a decomposition reaction which is activated by thermal energy. The reaction is generally endothermic as energy is required to break the chemical bond in order to separate the constituent elements. example of thermal decomposition reaction CaCO3\xa0→ CaO + CO2\xa0When heated Calcium Carbonate,decomposes into Calcium Oxide and Carbon Dioxide. This process is employed in the manufacturing of quick lime which is an important component in industries.\t\t\tElectrolytic decomposition reaction\t\tAn electrolytic decomposition reaction is a type of decomposition reaction in which the activation energy for decomposition. Example of electrolytic decomposition reaction Dissociation of water:2H2O→ 2H2\xa0+ O2\t\t\tPhoto decomposition/ photolytic decomposition/ photochemical decomposition\t\tA photo decomposition is the type of decomposition reaction in which the reactant is broken down to its constituents by photons.Example of photo decomposition reaction O3\xa0+ hν → O2\xa0+ O(1D)Photolysis occurs in the atmosphere wherein ozone molecules is broken down into oxygen molecule and atomic oxygen.\t\t 1) thermal decomposition reaction 2) electrolytic decomposition reaction 3) light decomposition reaction. |
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| 2131. |
why we use two rays for drawing images in ray diagram?? |
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Answer» 1.If we use one line,it is impossible to predict the position of image as there is no intersection of lines.2.It is recommended to use two lines because it makes the diagram clear .Prediction of image is also possible as they intersect each other.3.More than two lines are avoid because it makes the diagram messy and dirty. To construct a ray diagram we use two light which are choosen that it is easy to know their direction after reflection from the lens.List these two rays and state the path of these rays after refractio use these two rays to locate the image of the object placed between \'F\' and \'2F\' of a convex lens. |
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| 2132. |
Why is diffusion sufficient for transporting food qnd oxygen in unicellular organisms |
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Answer» It is because the multicelluar organisms are not in contact in environment always. Unlike unicellular organism such as amoeba are in contact with environment. Hope is it helpful to you sister Bcoz in unicellular organism all the body are in direct contact with environment they don\'t have special tissues or organs.That"s why diffusion is sufficient |
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| 2133. |
Why do fire flies glow at night❔❔? |
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Answer» Sorry ignore the 1 answer ??? Biodegradable waste includes any organic matter in waste which can be broken down into carbon dioxide, water, methane or simple organic molecules by micro-organisms and other living things by composting, aerobic digestion, anaerobic digestion or similar processes Fireflies produce a chemical reaction inside their bodies that allows them to light up. This type of light production is called bioluminescence. ... When oxygen combines with calcium, adenosine triphosphate (ATP) and the chemical luciferin in the presence of luciferase, a bioluminescent enzyme, light is produced. What is this ?? |
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| 2134. |
Define strong base |
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Answer» Wlcm sis...?? Thanks These are the bases which ionise completely in aqueous solution.☺️☺️ A strong base is base that Completely dissociated in an aqueous solutions and produces more number of OH ions. Ex: sodium hydroxide The compound as being 100% split up into metal ions and hydroxide ions in solution. |
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| 2135. |
What is tooth enamel |
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Answer» Ohoo "ji" Thanks ji It is a very hard, white to off-white, highly mineralised substance that acts as a barrier to protect the tooth but can become susceptible to degradation, especially by acids from food and drink. |
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| 2136. |
Difference between obesity and overweight |
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Answer» Koi na Thankyou ? If your BMI is 25.0 to <30, it falls within the overweight range. If your BMI is 30.0 or higher, it falls within the obese range. |
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| 2137. |
What is jouls law |
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Answer» i^2 rt Joule’s law of heating states that when a current ‘i \' passes through a conductor of resistance ‘r’ for time ‘t’ then the heat developed in the conductor is equal to the product of the square of the current, the resistance and time.\xa0H = i 2 rtThe reason behind the heat produced is the collision of the free electrons with the lattice ions or atoms while accelerating in presence of the external electric field.we know thatvolt= work done/ total charge or v = w/qfrom this we get w= vqwe know that current i = q / tso q = itputting this in prev equationwe get w = vitfrom ohms law v = irputting it in prev eq we getw = irit = i2rt joule as work is stored as heat soH = I2RT Joules |
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| 2138. |
How to learn chenical reactions in a very easy way |
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Answer» You can learn elements.☺ Learn about elements Chemical* |
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| 2139. |
Krebs cycle |
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Answer» Tq ☺️ The Krebs cycle is a part of cellular respiration.its other name are the citric acidity cycle and the tricarboxylic acid cycle the Krebs cycle comes after the link reaction land provide s the hydrogen and electron needed for the electron transport chain ? |
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| 2140. |
Why decomposition of vegetable matter into compost an exothermic reactio? |
| Answer» The\xa0decomposition\xa0of plant and animal organic waste by the action of microbes\xa0into\xa0useful\xa0compost\xa0is an\xa0exothermic reaction\xa0because large amount of energy is released\xa0in\xa0this process. It is different from other chemical\xa0reactions,as they need energy\xa0to\xa0break the bond.\xa0According to the circumstances mentioned in the question that, The\xa0decomposition of vegetable matter into compost\xa0is said to be exotherimic in nature...but all\xa0decomposition reactions\xa0involve the absortion of enegry ; i.e. they are\xa0endothermic. That\'s why it is an\xa0exothermic reaction. | |
| 2141. |
Do the number of products formed in a combination reation confined to only one? |
| Answer» Yes | |
| 2142. |
Why is respiratiom an exothermic reaction? |
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Answer» Bcoz in this reaction energy is liberated Hope it is helpful to you Because in this process energy is released. |
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| 2143. |
What will happen, if zinc will displace gold in a chemical reaction.?❓❓ |
| Answer» Zinc will displace gold in the particular compound and will form a new compound with zinc in it instead of gold. Gold will become a product of reaction. | |
| 2144. |
What do you mean by aqueous |
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Answer» Something in which water is used in more amount Yes water Water ?? This word is related to wateramd aquatic animals Water |
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| 2145. |
Define peristalsis and biocatalyst? |
| Answer» Biocatalysis refers to the use of living (biological) systems or their parts to speed up (catalyze) chemical reactions.Peristalsis, involuntary movements of the longitudinal and circular muscles, primarily in the digestive tract but occasionally in other hollow tubes of the body, that occur in progressive wavelike contractions. | |
| 2146. |
What functions are performed by bile juice and pancreatic juice to help in digestion? |
| Answer» Bile is a greenish yellow liquid made in the liver. Bile performs two functions: (1) it makes the acidic food coming from the stomach alkaline so that pancreatic enzyme can act on it. (2) bile salts break the fats present in the food into small glucose making it easy for the enzyme can act on it and digest it.Pancrease secreates pancreatic juice which contains digestive enzymes like pancreatic amylase, trypsin and lipase. The enzyme amylase breaks down the strach, the enzyme trypsin digests the protiens and enzyme lipase breaks down the emulsified fats. | |
| 2147. |
Can i get the video |
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Answer» No never No |
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| 2148. |
What are acids and base give example |
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Answer» Acids contain hydrogen ions like HCl and bases contain hydroxide ions like NaOH. Acids: Substances which turn blue litmus solution red are called acids. Acids are sour in taste.Example - Hydrochloric Acid or lemon which contain critic acid Bases: Substances which change red litmus solution blue are called bases. They are bitter in taste.Example - sodium hydroxide soln or caustic soda soln ACID =HYDROCHLORIC ACID PHOSPHORIC ACIDBASE=MILK OF MAGNESIA SOAP An acid is a compound which contains hydrogen that can be partially or wholly replaced by a metal or a group of,to produce salt.Ex-HCl,H2SO4 etcA base is a substance, usually oxide or hydroxide of a metal, which can react with acid to produce salt and water.Ex-Na(OH),CuO etc |
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| 2149. |
State one difference between physical and chemical change |
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Answer» Physical change is temporary change, but chemical change is permanent change. Those changes in which no new substances are formed are called physical changes. But the properties like state, size, shape and colour changes. If we cut the piece of paper in four parts and again we cut the paper into another four pieces, we cannot join the pieces but the properties are changed.\xa0Those changes in which new substances are formed are called chemical changes. The properties of new substances formed in a chemical changes are entirely different from those of the original substances. Chemical changes are also called as chemical reactions. The chemical changes are permanent changes which can usually not be reversed to form the original substance. Large amount of energy is absorbed or lost during the process. Physical changes are reversible while chemical changes are irreversible. |
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| 2150. |
What is cataract and how to prevent it |
| Answer» Cataract is a condition in which the crystalline lens of people at old age becomes milky and cloudy resulting in blurred vision.\xa0Most cataracts develop when aging or injury changes the tissue that makes up your eye\'s lens. Some inherited genetic disorders that cause other health problems can increase your risk of cataracts. Cataracts can also be caused by other eye conditions, past eye surgery or medical conditions such as\xa0diabetes.Natural Cure for Cataract:\tHave regular eye examinations. This way, you can detect and treat eye problems earlier.\tStop smoking, reduce alcohol use and manage health problems.\xa0\tEat fruits and vegetables.\xa0\tWear sunglasses. | |