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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.
| 65301. |
What is sexual reproductio? |
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Answer» The intercourse between two bodies male and female is known as sexual reproduction in which male germ cells fuses the female egg The sexual reproduction is when male or female parents are involve is know as sexual reproduction Reproduction which involves both sexs or 2 parents is called sexual reproduction The production of new organism from two parent with the help of their *** cell or gametes is known as sexual reproduction Mode of reproduction in which male and female gametes fuses to form their offspring |
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| 65302. |
Heridity and evolution board exam mai kitne marks ka aayega pls koyi batado |
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Answer» 5 or 6 marks 80 |
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| 65303. |
Heridity and evolution kitne marks ka aayega |
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Answer» Complete bio 23marks ki ayegi chapter wise marking nahi ayi is bar 6 marks ka aayega heredity and evolution me se |
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| 65304. |
Why mendal choose pea plant |
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Answer» They allows both self pollination and cross pollination.Large number of seeds are produced. #REASON :Produce many offspring in one cross: Short life cycle Uska man |
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| 65305. |
What is mitosis and mieosis |
| Answer» A bit long. If u don\'t mindContact via Instagram. @ashwin2k3 | |
| 65306. |
Why the safety fuse always connected on the live wire |
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Answer» If an appliance develops a fault, the current may become too high. This would cause the wires in the flex to get hot and might cause a fire or damage components within the appliance. Every three pin plug has a fuse connected to the live wirer.?????A 13A fuse with a low melting point wire.The fuse has a thin piece of wire inside it, which is the weakest link in a circuit.?????? Bcz. The fuse prevent the wire not to burn or melt as curret is more that is why fuse is connected the the live wires , when current is more then the fuse will get starting heating up and at the stage it will get melt down then it breaks the circuit and prevent the wires Nuteral wire |
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| 65307. |
How to write oersted\'s experiment |
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Answer» Hans Christian Oersted was a Danish scientist who explored the relationship between electric current and magnetism. Current is the flow of electrons, and is how we hardness electricity. Currents create their own magnetic fields in closed loops, which magnets are known to induce, or create current, in wires.????? According to the N.C.E.R.T. book |
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| 65308. |
How can we say that which acids are highly ionised and which are not. |
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Answer» An acid or base\'s strength refers to its degree of ionization. A strong acid will completely ionize in water while a weak acid will only partially ionize.??????Since there are different degrees of ionization, there are different levels of weakness. Fortunately, there is a simple quantitative way of expressing this.??????? If an acid is said to be highly ionised then it must dissociate into H+ ions to form protic acid ....... A strong acid completely ionizes (dissociates into ions), i.e. 1 mole of HCl completely ionizes forming 1 mole of H3O+ and 1 mole of Cl-. ... A weak acid does not completely ionize which means that an equilibrium exists between the unionized acid and the ionized acid. |
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| 65309. |
Name the device which converts mechanical energy to chemical energy |
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Answer» That device is generator ??????? Electric generator converts mechanical energy into electrical energy generator converts mechanical energy to electrical energy |
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| 65310. |
During pregnancy menstrual cycle takes place or not |
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Answer» No No A HUGE nooo.. No No...... No |
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| 65311. |
What is the meaning of variation |
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Answer» Inner queries which occur during DNA copying and help to adjust the changes in the environment is called variation Changes that takes place during DNA copying are called variations. Variation takes place when changes are produced in DNA. The 2 organisms after variations happen won\'t be able to reproduce or mate Thank you The change that takes place is called variation. |
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| 65312. |
Can i get notes of chemistry for preboard |
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Answer» All chapters I also want to take Which chapter Yes you can |
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| 65313. |
How can we say that light is a transverse wave |
| Answer» \tLight is a transverse wave because its components vibrate perpendicular to the direction of propagation.\tA transverse wave is a wave that oscillates perpendicular to its direction of propagation.\tA light wave is an electromagnetic wave.\tIt has an electric and a magnetic component. | |
| 65314. |
What nature does alchohol has whether it is acidic, basic or neutral |
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Answer» Alcohol is categorized as neutrals Thanks Alcohols behave as weak acids or weak bases depending on the conditions. They can act as acids in strong base medium and base in strong acid medium.By the Arrhenius definition of an acid and base, alcohol is neither acidic nor basic when dissolved in water, as it neither produces H+ nor OH- in solution. However reacting an alcohol with a nucleophile makes it easy to remove the H+ ion from the functional group, rendering a nucleophilic alcohol. Alcohol is neutral because when we pass electricity from the solution of alcohol the bulb does not glow ,by this activity we know that alcohol is neutral |
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| 65315. |
What is the unit of excretion in humans |
| Answer» \tA pair of kidneys, a pair of ureters, a urinary bladder and a urethra constitutes the human excretory system.\tKidneys are present on either side of the backbone in the abdomen.\tKidneys produce urine and urine from kidney passes through the ureters into the urinary bladder and remains stored their until it is released through the urethra.\tUrine is produced to filter out waste products from the blood.\tNephrons are basic structural and functional unit of kidney.\tCluster of thin walled blood capillaries called glomerulus in the nephron filtrate the urine and each cluster is associated with cup shaped end of a tube called Bowman’s capsule.\xa0 | |
| 65316. |
Process of refining of metals? |
| Answer» Electrolytic Reduction: Electric current is passed through the molten state of metal ores. Metal; being positively charged; is deposited over the cathode.Electrolytic Refining: In the process of electrolytic refining a lump of impure metal and a thin strip of pure metal are dipped in the salt solution of metal to be refined. When electric current is passed through the solution, pure metal is deposited over thin strip of pure metal; from lump of impure metal. In this, impure metal is used as anode and pure metal is used as cathode. | |
| 65317. |
What happen when bleaching powder is exposed to air? |
| Answer» Bleaching powder is a yellowish white powder with a strong smell of chlorine. When exposed to air, bleaching powder gives a smell of chlorine. This is because bleaching powder reacts with carbon dioxide from the atmosphere to produce calcium carbonate and chlorine gas. CaOCl2 + CO2 → CaCO3 + Cl2 ↑ | |
| 65318. |
Name a non-metal which is solid? |
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Answer» Gallium is a metal which has low melting point. Gallium |
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| 65319. |
Explain the froath flotation process. |
| Answer» This method is employed for the concentration of sulphide ores. The finely powdered ore is added to water in a tank containing pine oil. The mixture is agitated by blowing a blast of air. The ore particle preferentially wetted by oil come to the surface with froth while impurities which are wetted with water become heavier and settle at the bottom. The oil froth containing mineral particles which floats on froth containing mineral particles which floats on the surface of the water can be skimmed off easily. | |
| 65320. |
Sir how we make own best notes✌✌ |
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Answer» You will take help of studyranker or myCBSEguide app and other helper book and always take those points which is written by your teacher. It makes dafer You can make your notes by coping with other institute like aakash allen |
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| 65321. |
What are chromosome |
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Answer» a thread-like-structure of nucleic acids and protein found in nucleus of most living cells,carring genetic information in the form of genes. Chromosomes are rod like structure which consists DNA and Proteins.. Chromosomes are rod like structure |
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| 65322. |
Name the substances in the bio-gas? |
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Answer» Thanks akhil Methane and what the other substances CH4(50-75%),CO2(25-50%),N2(0-10%),H2(0-1%) Methane |
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| 65323. |
What are the uses of etanoic acid |
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Answer» 1.A dilute solution of ethanoic acid is called vinegar that can be used as a food preservative in preparation of pickles and sauces.2.It is used for making cellulose acetate which is used to make artificial fibre.3.It is used for the manufacture of acetones and esters used in perfumes.4.it is used to coagulate rubber from latex.5.it is used in the preparation of dyes,plastics and pharmaceuticals.Hope this helps✌ Common name acetic acid uses as preservative for pickels |
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| 65324. |
What is nicrom |
| Answer» Nichrome is an alloy that do not undergo oxidation even at high temperature. | |
| 65325. |
Which endocrine gland secretes the growth harmone |
| Answer» Pituitary gland secretes growth hormone | |
| 65326. |
Which gland known as a master gland |
| Answer» Pituitary gland is known as master gland because it controls the functioning of all the other glands of the body | |
| 65327. |
Identify hydrocarbon that undergo addition reactionC^2H^6 ,C^3H^4,C^2H^2 ,CH^4 |
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Answer» How C^3H^4 and C^2H^2 will undergo addition reaction as they are alkynes |
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| 65328. |
What is the excretion unit in humans (one word answer) |
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Answer» But thats the unit of filtration not excretion Nephron |
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| 65329. |
What is chemical formulae of soap |
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Answer» C17H35COONA C17H32COONa |
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| 65330. |
What is the Buckminster fullerence? |
| Answer» Buckmister fullerene is a C60 carbon alltrope which contain 60 carbons and it is a dome shaped structure discovered by robert buckmister fuller and it was named after him | |
| 65331. |
If potassium ion is not present in stomata then what happen? |
| Answer» | |
| 65332. |
Which ray are trapped by green house gase |
| Answer» The high energy and short wave radiations will make the atmosphere to heat the surface of the Earth. The surface radiates back the energy into the space in the form of long wave and low energy called infrared radiations. | |
| 65333. |
State the reason : All the alkalies are basesBut all bases are not alkalies? |
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Answer» Thanks Gaurav A base is any substance that neutralizes acid. It may or may not be soluble in water. Those bases which are soluble in water are called alkalis. Thus an alkali is a water soluble base. For example NaOH, KOH etc.Therefore it is said that all alkalis are bases but all bases are not alkalis. |
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| 65334. |
What is the function of pheromone? |
| Answer» Definition of Pheromones. Pheromones are types of chemicals that are released by organisms as a means of communication with organisms of the same species. Some animals release it through their urine, their skin or even in their feces, and it is detected using smell. | |
| 65335. |
What will happen if a solution of sodium hydrogen carbonate is heated? |
| Answer» If sodium hydrogen carbonate is heated it will dissociate into sodium carbonate, water and carbon dioxide.2 NaHCO3(s) → Na2CO3(s) + CO2(g) + H2O(g) | |
| 65336. |
Why any substance change its colour after reaction |
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Answer» Because when a substance reacts with other a new substance forms with new physical and chemical properties different from the reactants. Hence it results in change of colour. Change in Substance\'s colour during a chemical reaction :2FeSO4(s) + heat\xa0→ Fe2O3(s) + SO2(g) + SO3(g)Ferrous Sulphate(Green colour) Ferric Oxide(Red-brown colour) |
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| 65337. |
2-ethyl butanone |
| Answer» | |
| 65338. |
Describe male reproductive system |
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Answer» The male reproductive system in human beings is composed of following parts:Testis: There is a pair of testes; which lie in a skin pouch; called *******. ******* is suspended outside the body; below the abdominal cavity. This helps in maintaining the temperature of testes below the body temperature. This is necessary for optimum sperm production. Testis primarily serves the function of sperm production. Sperms are the male gametes. Apart from that, testis also produces testosterone. Testosterone is also called the male hormone, as it is responsible for developing certain secondary sexual characters in boys.Vas Deferens: Vas deferens is the tube which carries sperms to the seminal vesicle.Seminal Vesicle: This is the place where sperms are stored. Secretions from the seminal vesicle and prostate gland add up to make the semen.*****: It is a muscular organ which serves the genitor-urinary functions. The urethra works as the common passage for urine as well as for sperms.\xa0 Male reproductive system hi study karoo srif |
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| 65339. |
Which type of source of energy is pollution free |
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Answer» Bio gas plant Non conventional |
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| 65340. |
2-ethyl butanone structure |
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Answer» It is ketone Groups that sufix is one Ch3-ch1=o |
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| 65341. |
What is function in prostrate gland |
| Answer» Secrete a milky liquid to nourish the sperms contained in the semen. | |
| 65342. |
Why stability is required in reproduction and why is DNA is important for reproduction ? |
| Answer» | |
| 65343. |
What is the formula of egg shell? |
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Answer» A vinager has a chemical called acetic acid(about 3 percent).Egg shell contain calcium carbonate.Calcium carbonate in the egg shell reacts with vinager to form carbon dioxide(can be seen as bubbles in the vinegar) Calcium carbonate CaCO3 Pata nahe |
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| 65344. |
How can i improve my skills in physics |
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Answer» Study theory deeply and clear concepts Consistency Concentration Practice. Solve ncert in text question with exercise Practice |
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| 65345. |
What is corronery vien and also write its function |
| Answer» Coronary veins and coronary artery are the blood vessels that transport blood to heart for its needs. Coronary veins collect impure blood from heart for purification. | |
| 65346. |
Which is the heaviest natural occuring element? |
| Answer» Uranium | |
| 65347. |
How Many Type Of Reaction Is There In Chemical Reaction and Equation |
| Answer» Four types are reaction in chemical reaction1. Combination reaction2. Decomposition reaction3. Displacement reaction4. Double displacement reaction | |
| 65348. |
What is DNA copying ? |
| Answer» Cells use chemical reactions to build copies of their DNA. This creates two copies of the DNA in a reproducing cell. DNA copying is accompanied by the creation of an additional cellular apparatus to facilitate the DNA copies to separate with its own cellular apparatus. DNA copying gives rise to some inbuilt tendency for variation during reproduction which is the basis for evolution. | |
| 65349. |
State darwins theory |
| Answer» Following are the points of Darwin’s theory of natural selection:Over-production:\xa0Every organism has enormous potential to reproduce.Struggle for existence:\xa0Population size of an organism is limited due to struggle between the members of same species as well as the members of different species. It is due to struggle for food, space and mate.Variation:\xa0Due to struggle, the fit organisms possess some variations which are favourable, and they can leave the progeny to continue the favourable variations.Survival of the fittest:\xa0The fittest organism survive to continue the favourable variations.Formation of a new species:\xa0These variations when accumulated for a long time, leads to the origin of a new species. | |
| 65350. |
Explain law of indipendent assortment. |
| Answer» Mendel was considered as \'Father of Genetics\' as he could explain different facts of inheritance after performing lot of experiments on pea plants. He considered genes as units of heredity. He has prosed a set of laws called as Mendelian laws. One such law is Law of independent assortment.Law of independent assortment states that when two pairs of independent alleles are brought together, they exhibit independent dominant effects. The genes of different characters are independent of one and other during gamete formation.Gene :Gene is a small point on a chromosome representing one character of an individual. Genes are units of inheritance.Alleles: These\xa0are two alternate forms of genes present on the same point on the chromosomes forming a homologous pair.\xa0 | |