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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.
| 55201. |
What is oospores |
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Answer» the thick-walled zygote of certain algae and fungi, formed by fertilization of an oosphere.?????? a thick walled zygote on algea and fungi |
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| 55202. |
What ate esters ? |
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Answer» When the ehanol and tlethanoic acid is react together the ester will formed Ester is a sweet smelling substance. So it is used for making perfumes and other flavouring agent.ester is formed by esterification reaction. Ester is a substance which give fruity smeel Yes i also want answer to this question. |
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| 55203. |
Formation of fruits and seeds |
| Answer» After fertilization, ovules are converted into seeds. The ovary after fertilization becomes the fruit. | |
| 55204. |
Wat are the properties of ethanoic acid ? Explain in simple words . |
| Answer» Some important physical properties of ethanoic acid are as follows:1.Ethanoic acid or acetic acid is a colourless liquid.2. It is soluble in water, the 5 - 8% solution of Acetic acid in water is called vinegar.3.Ethanoic acid melts at 290 K and boil at 391 K.4.It solidifies on cooling to an ice like crystalline solid which looks like a Glacier and hence its name is glacial acetic acid.5. It produces painful blisters in contact with skin.6. It burns in air with a pale blue flame.Some chemical properties are as follows:1.Action on Litmus- Ethanoic acid is a weak acid in nature. It turns blue Litmus red.2. Reaction with alkalis: ethanoic acid reacts with alkalis or bases to from Salt and water.CH3COOH + NaOH -----> CH3COONa + H2O3. Reaction with alcohol: When ethanoic acid is heated with an alcohol in the presence of concentrated H2SO4 an ester is formed. This is a slow reversible reaction and is called esterification.CH3COOH + C2H5OH ---Conc. H2SO4→ CH3COOC2H5 + H2O4. Reaction with carbonates and bicarbonates: ethanoic acid decomposes carbonates and bicarbonates producing a salt, carbon dioxide and water2CH3COOH + Na2CO3 -----> 2CH3COONa + H2O + CO2CH3COOH + NaHCO3 -----> CH3COONa + H2O+ CO2 | |
| 55205. |
Drawbacks of tidal energy. |
| Answer» Limitations of wave energy:1-Since waves are erratic, the amount of energy a wave generator can produce is unpredictable and, therefore, cannot be used as a sole reliable energy source.2-High initial capital costs.3-Equipment should be strong to stand against rough weather.4-It Can harm the marine ecosystem. | |
| 55206. |
Working of electri generator |
| Answer» \tThe axle is rotated such that it moves in the clockwise directions that is AB moves up and CD moves down. \tAccording to Fleming\'s Right Hand rule, the induced current is setup in the coil along B1-> AB -> BC -> CD -> B2. This means that the external current flows from B2 to B1.\tAfter half a rotation, arm CD starts moves up and AB moves down.\tAccording to Fleming\'s Right Hand rule, the induced current is setup in the coil along B2-> AB -> BC -> CD -> B1. This means that the external current flows from B1 to B2.\tThus after every half rotation of the coil, the current changes direction. This is called an AC current. \tAC current(Alternating current) : Changes its direction after equal intervals of time. It is easier to transmit this current over long distances due to lesser loses and hence this is the current that is supplied to our houses from the electricity department.\xa0 | |
| 55207. |
How to transgender are born? |
| Answer» Disordering of genes or mistakes in forming dna | |
| 55208. |
What are hotspots |
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| 55209. |
What is a skelatal chemical equation ? |
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Answer» Unbalanced equations equation which are not balanced on both the side i.e reactant and productant |
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| 55210. |
Why carbon and nitrogen never react each other? |
| Answer» So the molecules practically do not break apart. It is because of this property that the seventh element shows low chemical activity. All nitrogen compounds are highly unstable, because when they are heated, free nitrogen is formed. | |
| 55211. |
What is the difference between slaked lime and limewater? |
| Answer» Slaked lime formula is Ca(OH) 2Limewater formula CaCO3 | |
| 55212. |
Why forests are called as biodiversity hotspots? |
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| 55213. |
Scientific name of pea |
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Answer» Scientific name::)) pisum sativam. Sorry pisum Possum sativam Pisum sativam |
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| 55214. |
What is sponificatio reaction and esterification with equations? |
| Answer» Esterification:- When alchols combine with carboxylic acid it produces Esterification. Ester is a sweet smell fruit.NOT POSSIBLE TO WRITE EQUATION;;)) | |
| 55215. |
What is eye ball |
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Answer» An eyeball is the round part of the eye of vertebrate within an eyelid and socket An eyeball houses the retina - an extremely metabolically of nerve tissues made up of million of light receptors and all the structure needed to be focused light onto it . |
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| 55216. |
Can rainfall be considered that an area have good amount of water |
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Answer» Yes May be |
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| 55217. |
Hom mant types of functional group in carbon and compound chapter |
| Answer» 07 functional group in carbon and compound chapter.1. Hydrocarbons2. Haloalkanes3. Alcohol4. Aldehyde5. Ketone6. Carboxylic acid7. Ester. | |
| 55218. |
Mohanaa, any other tips for board exams .if yes , please tell me . |
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Answer» Don\'t stress my paper is also on tommorow Yes |
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| 55219. |
About natural gas? |
| Answer» Natural Gas\tIt is made of methane (carbon) and is lighter than air.\tIt is highly inflammable.\tIt is used extensively as cooking gas. | |
| 55220. |
What is binary fission and multiple fission???? |
| Answer» 1.Binary fission means when unicellular organism divides his nucleas and cytoplasm to generate two new daughters. Ex,amoeba 2.multiple fission means when unicellular organism divides it nucleas very fastly in unfavourable condition when it get favourable condition cyst break and all nuclei produce a new organism. Ex,plasmodium(malarian parasite). | |
| 55221. |
what is vertibrares |
| Answer» Vertebrates are the broad group of animals which are classified by the possession of a backbone or spinal column involving mammals, birds, fishes, reptiles, and amphibians and the list of these animals\xa0have lots more.Vertebrates are one of the most advanced organisms on Earth. The trait which makes all the animals in this category unique are the vertebrae, notochords, and spinal cords. Everything resides at having a series of nerves along the back(dorsal side). If you are an organism, you just cannot survive on nerves. You need to have support and protection for these nerves. The requirement is all about the backbones and a rod of cartilage known as notochord. | |
| 55222. |
A student focuses the image of a well illuminated distant object on a screen |
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| 55223. |
A stick partially immersed in the water appears to be bend at the water surface. Why? |
| Answer» This is due to the rarefaction of light.The light rays changes their speed from rare to denser or denser to rare medium thus,it apears like that.However,it does not really bends | |
| 55224. |
Why novel gas not react with any other gas? |
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Answer» As their octet is complete(means they have their electronic configuration complete in relation to the sub shells K,L,Mand N). For example-Helium Because it\'s outermost cell or valency cell is filled. So it can\'t donate or receve or share it\'s electrons with other gases. Because they are already stable |
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| 55225. |
what is function of puitiary gland |
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Answer» It control growth hormone Pituitary gland , it is called as the master gland . It controls all other glands . It screcte growth hormone it helps in growing |
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| 55226. |
What is the construction and working of electric generator |
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Answer» Working of AC electric generator :\tThe coil is at rest in vertical position with side (A) of coil at top position and side (B) at bottom position no current will be induced in it.\tWhen the coil is rotated in clockwise direction current will be induced in it and it flows from A to B.\tIf we continue the rotation of coil once again current becomes zero.\tThe coil comes to vertical position with B side at top A at bottom position.\tDuring second part of the rotation current generated follows the same pattern except that the direction of current is reversed.\tThus the current produced is AC current. ,jswon |
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| 55227. |
Why does synthetic detergent cause water pollution |
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Answer» Detergents contain 20% active ingredients and remaining are sodium sulphate, inorganic phosphates, foaming agents. Phosphates from detergents assist algae and weeds to grow in water, which deplete d oxygen for sea animals. Hence, detergents cause water pollution. Because synthetic detergent is non biodegradable that\'s why it causes water pollution |
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| 55228. |
Why does the sun appear dark insted of blue to a aastronaut. |
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Answer» Why do you think that it \' d appear blue Scattring of light |
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| 55229. |
Why does sun appers reddish early in the morning. |
| Answer» In the morning the sun is far away from earth. The red colour of sun light have long wavelength due to which the sun visible reddish in early morning. | |
| 55230. |
What happened when the two condom is used in the process reproduction at the same time |
| Answer» This is not recommended for pregnancy prevention because it can increase friction during intercourse, making them more likely to rip and tear | |
| 55231. |
Why is diffusion insuffcient to meet the oxygen requirements of multicellular organisms like human |
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Answer» Diffusion is insufficient because diffusion is very slow process and area of multicellular animal is very large . Diffusion is also a very a very slow process because multicellular organism need high or large amount of energy to maintain their body temperature and various other processes |
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| 55232. |
Fussion |
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| 55233. |
What is flaming right hand thumb rule in easy wording |
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Answer» Acc to this rule sterch thumb,forefinger and midfinger of your right ✋ such that these are mutually perpendicular to each other.If forefinger gives direction of magnetic field the thumb gives direction of motion then our middle finger will give the direction of induced current in the conductor Fbi |
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| 55234. |
What is dominant traits and reccessive traits |
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Answer» Gene which dominets other gene is called dominant gene and gene which get dominated is called reccessiv gene The traits which Express themselves in either presence or absence of of recessive traits are called dominant traits the tree treats which do not Express themselves in the presence of dominant trait and recessive traits. |
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| 55235. |
What is lenticel? |
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Answer» Lenticels are large sized aerating pores present in the cork tissue for gaseous exchange. They occur in almost all types of phellem containing organs including stem, root, potato tuber etc. They are slightly raised spots on the surface of stem. They help in exchange of gases. Tiny opening particles of bark are known as lenticels,They help in gaseous exchange. |
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| 55236. |
Write the difference between resistance and resistivity |
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Answer» \tResistanceResistivityResistance is the physical property of a substance because of which it opposes the flow of current i.e. electrons.Resistivity is the physical property of a particular substance which is having particular dimensions.Resistance is directly proportional to the length and temperature while it is inversely proportional to the cross-sectional area of the material.Resistivity is only proportional to the nature and temperature of the particular material.The SI unit of resistance is Ohms .The SI unit of resistivity is Ohms-meter.The property of resistance is used in several places like heaters, fuses, sensors, etc.Electrical resistivity measurement is used as a quality control test for calcareous soil.\t\xa0 Resistance is constant but resistivity is continuous |
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| 55237. |
Which is pure matter |
| Answer» Chemical substances are often called \'pure\' to set them apart from mixtures. A common example of a chemical substance is pure water; it has the same properties and the same ratio of hydrogen to oxygen whether it is isolated from a river or made in a laboratory. | |
| 55238. |
Cinnabar |
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Answer» Ore of mercury Ore of mercury |
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| 55239. |
Why in bounding the electron doest show repulsion force |
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Answer» No They do not do so as bonding occurs between those atoms that are electron deficient. |
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| 55240. |
what is geothernal ? |
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Answer» further explain it is not proper... Geothermal =geo + thermalGeo means earth and thermal means heat It means energy by earth |
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| 55241. |
What is formed when ethanol react in the presence of H2So4 |
| Answer» In 441k when we react ethnol presence of H2So4. Ehtnol release h2 gas and becoms in to saturated to unsaturated In Ethene | |
| 55242. |
What type of reaction occur inside the sun which produce solar energy? |
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Answer» In the sun Hydrogen bun and change himself into heavy elements like helium due to very high tempreture and pressure. By Einstein equation E=Mc^2 we can know when mass converted in to the Energy Nuclear fusion is the reaction that occur inside the sun which produce solar energy |
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| 55243. |
What is kilo watt hour ? |
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Answer» 1 kilo watt hour is the commercial unit of energy.1kWh equals 3.6 x 10^6 joules It is a unit of energy. |
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| 55244. |
What is the importance of forest as a resource |
| Answer» The importance of forest as a resource are :- 1) goods such as timber, food , fuel and bioproducts2) ecological functions such as water ,air purification and carbon storage | |
| 55245. |
Why molecule of air scatter only blue light of shorter wave length? |
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Answer» Because blue have shorter wave length and air particles are heavy then this wavelength that\'s why it scatter only blue light and red have higher wavelength then air that\'s why it not scattered red light Because of Cautchy\'s Law - check it out on net, it\'s fun. |
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| 55246. |
How do organism reproduce ? |
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Answer» Human reproduction naturally takes place as internal fertilization by sexual intercourse. ... This process is also known as "coitus", "mating", "having ***", or, euphemistically, "making love". The sperm and the ovum are known as gametes (each containing half the genetic information of the parent, created through meiosis). U can read ur book first... How do organism reproduce |
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| 55247. |
Electron dot structure of benzene |
| Answer» Benzene\'s molecular formula is C6H6The election dot structure will be a hexagon with double bonds for alternate carbons which will be rotating. So benzene is also known as a ring compound | |
| 55248. |
What is the ripe of gurd cell in opening of stomata? ... |
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Answer» The role of guard cells is to protect the stomata. Each stomata is surrounded buy two kidney shaped guard cells .guard cells have a number of chloroplast when guard cells become turgid then the stomatal pore opens in that takes place and exchange of gases and when the guard cells shrink then the stomatal p o r e closes Each stomata is surrounded by two kidney shaped gurad cell. Guard cell have a number of chloroplast. The structure of guard cell help in opening and closing of stomata. When guard cell become turgid than stomata become open and when guard cell is flacced than stomata became close. Srry it is role |
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| 55249. |
Where the pure metal go after electrolytic refining |
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Answer» Pure metal from anode dissolves into the electrolyte. An equivalent amount of pure metal from the electrolyte is deposited at the cathode. At the anode At the cathode To domestic uses |
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| 55250. |
Type of formulas fir writing hydrocarbons |
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