InterviewSolution
Saved Bookmarks
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.
| 66301. |
What is an chlor alckli process |
|
Answer» Chlor alkali is a process in which Nacl is electyolysed by passing electicity through it and after electrolysis it disassociate to form NaOH, chlorine gas and hydrogen gas which has huge industrial applications. Chlor alkali process is an industrial process for the electrolysis of sodium chloride (NaCl). |
|
| 66302. |
Why is the use of iodised salt is advisable..? |
|
Answer» Iodine is needed by the thyroid gland by the production of thyroxine hormone...This hormone regulates fat,,protein etc..This is in deficient quantity then the neck will swelling up due to enlargement of thyroid gland....?? Because it helps in the maintenance of thyroxine hormone which prevents us from goitre....... |
|
| 66303. |
What shall be the total action of heat on copper sulphate |
| Answer» Copper sulphate is a hydrated salt which contains 5 molecules of water of crytsallisation, and so is denoted by the chemical formula CuSO4.5H2O. These 5 molecules of water of crytsallisation are responsible for the blue colour of the salt. However, when copper sulphate is heated for some time, the blue colour disappears and it becomes white-gray in colour. This is because the water molecules are lost on heating and copper sulphate pentahydrate is converted to anhydrous copper sulphate. | |
| 66304. |
state the physical nature of ionic compounds ? give reason for your answer. |
|
Answer» Physical nature of ionic compounds:\xa0They are hard, because of the strong inter particle force of attraction between the ions in the compound They have high melting & boiling point because the inter molecular force of attraction of ionic compounds is strong. |
|
| 66305. |
The lengths of the diagonals of a rhombus are 30 cm and 40 cn. Find the sides of the rhombus. |
|
Answer» 25 Diagonals of rhombus bisects each other at 90 So find half of diagonals and apply Pythagoras theorem. Answer is √225+400 Sry subject is maths.. |
|
| 66306. |
We have to draw the punnet square in F1 generation in dihybrid cross |
| Answer» RRYY x rryyRY RY x ry ry By crossing RY x ry we get RrYy in both cases so RrYy is hybrid(round and yellow seeds) this progeny is f1 generation | |
| 66307. |
Why magnesium ribbion shoud be cleaned before burning |
|
Answer» To remove the layer of oxide? Magnesium ribbon is a very reactive metal. When stored it reacts with oxygen to form a layer of magnesium oxide on its surface. This layer of magnesium oxide being a stable compound prevents further reaction of magnesium with oxygen. The magnesium is cleaned before burning in air to remove this layer so that the metal can be exposed to air properly. Its because magnesium is a reactive metal which react with oxygen when exposed to air and a outer layer is form black in colour after reaction. eg.2Mg + O2 -------------> 2MgO for removing the oxide of magnesium. |
|
| 66308. |
What is cristalization |
|
Answer» Crystallisation is defined as the process by which the solution is convert into liquid state into crystalline state.???? The number of water molecules chemically combined in a definite molecular proportion with the salt in the crystalline state are called water of crystallisation.Salts that contain a definite number of water molecules as water of crystallisation are called hydrated salts.Example:\xa0Gypsum and washing soda.Conversely, salts that do not contain water of crystallisation are called anhydrous salts.Example:\xa0Anhydrous copper sulphate. |
|
| 66309. |
Prcatical kis ka ho gaya |
|
Answer» Mera 12 ko hai abhi sirb IT ka hua h. |
|
| 66310. |
What are halogens ?Explain. |
|
Answer» Waise abhishek 100/40 dega ya 40/100 # pooja g functional groups are follow principal of Hallogen chahe 5 6 compound bna lo aur compare kro 14 jata hoga Pooja g your ans was not totally correct 100/40 because it is a organic compound and successive compound differ by ch2 and always all time 14unit was increase * elements These elemenys combine with carbon compounds and change their properties. Halogens are one from functional groups consisting of five chemically related elements such as flourine, chlorine, bromine, iodine and astatine Sequence of carbon compound and it\'s increase with ch2 All time their masses was 14 unit increase Ch4=c=12 h=1 12+4=16C2h6 12+12+6 =30 |
|
| 66311. |
Oxidation reaction??? What is crystallization |
| Answer» Addition of oxygen.Crystalization is conversion of liquid solution into solid crystal state | |
| 66312. |
Why normal doesnot refract |
| Answer» As it is perpendicular to the plane | |
| 66313. |
How canwe get CH3COOH from CH3COOC2H5 |
|
Answer» CH3COOC2H5 + H2O - CH3COOH + C2H5OH By saponification reactionCh3COOC2H5 + NaOH - C2H5OH + CH3COOH |
|
| 66314. |
Give reasons why predators are more in a group |
| Answer» because predators eats herbivores.??? | |
| 66315. |
Why reproduction only occurs in females |
|
Answer» male body is not because female body is specialised for production of offspring inside the body and male body is specialised and energy for production of offspring inside the body. Becoz they have only the ability to produce egg cells.. |
|
| 66316. |
Which respiration takes more time for releasing energy |
| Answer» Anaerobic respiration | |
| 66317. |
Explain theory if evolution , which one if the theories is best suited and why? |
| Answer» it is an inbuilt tendency to variation during reproduction, both because of DNA copying ans a result of sexual reproduction. | |
| 66318. |
Function of fore brain t oter than thinking? |
| Answer» \xa0(i) It has regions which receives sensory impulses from various receptors. Based upon information and information stored in the brain, it make a decision how to respond. The information is passed on to motor areas which control movement of voluntary muscles such as our leg muscles.(ii) It is the site of intelligence and judgement.(iii) It controls intellect, speech, language, hunger and the spinal senses. | |
| 66319. |
Which metals are having low melting point? |
|
Answer» potassium and calcium. Gallium and caesium is corret answer Low Melting Point Metals. Metal with lowest melting point is mercury with -37.9 degrees Fahrenheit. This is due to weak metallic bonds as mercury has fulfilled valence orbitals Whose mine? Your answer is wrong Sodium and potassium |
|
| 66320. |
Practical file kis kiska complete hai |
| Answer» Mera | |
| 66321. |
Why water left side when soap foam is fallen down on wet surface |
| Answer» | |
| 66322. |
What\'s mean by reproductive system |
| Answer» Reproduction is fundamental feature of of all living being.....There r two form of reproduction....1.) Sexual reproduction...,,,2.) Asexual reproduction...!!?? | |
| 66323. |
My chemistry is so week. How I am good in chemistry anyone tell. Plz give good suggestion |
|
Answer» 1st u remember chemical name and formula of elements and compound .itna karne ke baad messages karna. Chemistry is my favourite subject. Che. Easy subject. First u read Textbook.Take a rough note and colour pen ,main points &equations write u r book with colour pens..Then text read atlest 5 times and read that main point again and again.. |
|
| 66324. |
What is the resistance of an ideal ammeter and voltmeter |
| Answer» Ammeter is measured current. It\'s connect in series and it should have very Low resistance. Voltmeter is measured potential difference. It\'s connected in parallel and it\'s resistance is very high | |
| 66325. |
What are the three advantages of sexual reproduction? |
|
Answer» 1) Sexual reproduction promotes diversity of characters in the offsprings by providing genetic variation.2) Sexual reproduction plays an important role in the origin of new species having different characteristics.3) This genetic variation leads to the continuous evolution of various species to form better and still better organisms. All this is not possible in case of asexual reproduction.4) Diversity of characters in the new generation give a better chance to adjust or adopt to changing environmental conditions to tolerate diseases, to spread to new areas and increase their population. evolution evolution, larger chance of variation n larger chance for the survival of the baby |
|
| 66326. |
How long is the duration of food digestion in human? |
| Answer» About 6-8 hrs | |
| 66327. |
Paragraph on importance of trees |
| Answer» Forests are of great importance to mankind. Following are some points illustrating the importance of forests:Forests help in maintaining water cycle on earth. Plants absorb water from the soil through their roots. The process of releasing excess water by plants into the atmosphere in the form of water vapor is known as transpiration. The process in which water vapor from oceans rises and condenses to form clouds is known as condensation and the process of moving clouds to land due to sea breeze is known as precipitation and this eventually leads to rainfall. All these processes together form the water cycle and hence forests play a significant role in continuing water cycle.Forests help in maintaining the temperature and oxygen level of the atmosphere. Plants release oxygen during photosynthesis and consume carbon dioxide. Forests being a huge reserve of plants and trees, they play a significant role in balancing oxygen level in the atmosphere.Forests help in preventing global warming. Increased amount of carbon dioxide (greenhouse gas) in the atmosphere results in greenhouse effect and thus causes global warming.Forests prevent soil erosion. Trees present in the forests hold the soil particles strongly with the roots and prevent them from erosion. | |
| 66328. |
What is the fuction of anther |
|
Answer» Anther is a part of the stamen (Male reproductive structure in plants). Anther contains four pollen sacs which produce pollen. The insects pick up pollen from here for pollination. Its male reproductive system in plants..It helps in fertilization in plants to form fruits.. |
|
| 66329. |
Write the energy converaion that takes place in hydropower plant |
| Answer» Potential energy to kinetic energy to electrical energy | |
| 66330. |
Where is DNA found |
|
Answer» Most DNA are located in the cell nuclius (where it is called nuclear DNA) and some DNA are located in Mitochondria (where it it called mitochondrial DNA).??? Dna are found in chromatin fibre of nucleus...??? It is generally found in the nucleus but small amount of DNA can also be found in mitochondria |
|
| 66331. |
Do all acids have H+ ions |
|
Answer» Yes Ya this is ryt.. All acids contains hydrogen |
|
| 66332. |
what is micropyle? |
|
Answer» A pore remaining in the seed coat due to the incomplete closure of the integument and exist as passageway, which leads to nucleus and is referred as micropyle. a small opening in the surface of an ovule, through which the pollen tube penetrates, often visible as a small pore in the ripe seed. |
|
| 66333. |
Define armature |
|
Answer» The armature takes the place of the nail in an electric motor. The armature is an electromagnet made by coiling thin wire around two or more poles of a metal core. The armature has an axle, and the commutator is attached to the axle. It is the rotating coil or coils of a dynamo or electric motor. the rotating coils of a dynamo |
|
| 66334. |
What is the genotypic ratio of monohybrid cross? |
|
Answer» It is 1:2:1 Aur Neeche ka 1:2:1TT:Tt:tt |
|
| 66335. |
What is the genotypic ratio of dihybrid cross? |
|
Answer» The above answer is phenotypic. Genotypic ratio is1:2:1:2:4:2:1:2:1....? 9:3:3:1 Kya hua iska answer kisi ko nahi pata kya? |
|
| 66336. |
10 th k board kab se chalu hai |
|
Answer» From 7 March 2019 2nd march 2019 07.03.2019 /maths |
|
| 66337. |
What is biogenesis? |
| Answer» Membrane biogenesis is the process which involves the synthesis of cell membrane with the help of proteins and lipids. Endoplasmic reticulum is responsible for the synthesis of these membranes.Membranes synthesised by this process of membrane biogenesis help in dividing the cell into structural and functional compartments. Membranes of the cell altogether are called as endomembrane system. The endomembrane system includes different membranes suspended in the cytoplasm and the plasma membrane. | |
| 66338. |
How does stomatal action contribute to regulation of plant temperature ? |
|
Answer» Thanks By transpiration |
|
| 66339. |
Modern periodic table. |
|
Answer» physical nd chemical properties of elements r periodic function of their atomic number. Properties of an element are periodic function of their atomic number |
|
| 66340. |
Why does magnesium solution conduct current through it |
| Answer» Because magnesium conduct free electron | |
| 66341. |
Structure of 3 peopanone |
| Answer» O=CH-CH2-CH3 | |
| 66342. |
what are the constituents of germanium\xa0 |
| Answer» \tGermanium, a chemical element places between silicon and tin in Group 14 of the periodic table.\tA hard, gray-white, lustrous and brittle metalloid acts in properties between metals and nonmetals.\tThe element is mostly distributed in nature, but it’s too reactive to occur free.\tGermanium has a diamond-like structure and is very similar to physical and chemical properties of silicon.\tThere are primary minerals which include germanite, argyrodite, Canfield site, and renierite. Only renierite and germanite have been used as commercial sources for the element. | |
| 66343. |
How are Involuntary action and reflex action different from each other |
|
Answer» Involuntary actions, do not require thinking, but are controlled by the brain, ex-- beating of heart beat. Reflex actions are rapid and spontaneous actions controlled by the spinal cord, ex--- pupil in the eye change its size according to the light entering through it. Involuntary action is controlled by brain and reflex action is controled by spinal chord |
|
| 66344. |
Where the two poles of a round magnet |
| Answer» they are either north or south. | |
| 66345. |
From which animal camels are evould |
| Answer» Wild sheep | |
| 66346. |
Write the name of an aldehyde with four carbon atoms in its molecule |
|
Answer» Butanal Butanal Butenone |
|
| 66347. |
What is dialysis?explain it ? |
| Answer» Dialysis is primarily used to provide an artificial replacement for lost kidney function (renal replacement therapy) due to renal failure. Dialysis is the artificial process of eliminating waste (diffusion) and unwanted water (ultrafiltration) from the blood. ... They do purify their blood through dialysis.HOPE U UNDERSTAND THIS | |
| 66348. |
CH3-CH2-CH=CH2 name or stracter |
|
Answer» Butene Butene |
|
| 66349. |
What is the formula of diamond |
|
Answer» Chemical formula is C? Its chemical formula is C. |
|
| 66350. |
Define sopification |
|
Answer» Conversion of oil and fats Solution of soap Saponification: Esters react in the presence of an acid or a base to give back the alcohol and carboxylic acid. This is called saponification reaction. This is reverse reaction of esterification reaction.CH3COOC2H5 + NaOH →\xa0CH3-COOH + CH3-CH2-OH Conversion of oil and fats into soap in presence of alkali is known as It is a process in which soaps are formed. |
|