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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.
| 57251. |
How to study effectively plz give me tips and time management ? |
| Answer» Its not necessary to study 8 hrs or 10 hrs but its necessary to study daily....Revise whatever is been taught to u in the class and read a little more than that ....Its more than enough.....Its not always that if a student studies 8-10 hrs without actual conceptual clarity only that particular child can score its better to study 2hrs but with full concentration ........????? | |
| 57252. |
Why is pituitary gland is known as master gland |
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Answer» Pituitary gland is also controlled by hypothalamus and it is known as master of endocrine system Because it controls all other glands present in a human body.. As well as... It also secretes growth hormone which helps for the development of a human being |
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| 57253. |
Why the nerve impulse travels in only one direction? (NCERT CLASS X - Control And Coordination) |
| Answer» Because it have to give information to brain or spinal cord. | |
| 57254. |
What is the germination? |
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Answer» Germination is the process in which small plants grown in the soil Transformation of a seed to plant in diff stages is called germination |
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| 57255. |
What is the atomic no.of zinc |
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Answer» 30 30 Atomic no. 30 |
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| 57256. |
What is magnetic field outside the solenoid .if zero then why? And if not then why? |
| Answer» The magnetic field lines exist outside the solenoid, but the number of field lines per unit area (flux) outside the solenoid is much less compared to the number of lines per unit area (flux) inside the solenoid. Hence the magnetic field outside is so weak that it is considered to be practically zero. | |
| 57257. |
Why when pH decreases h+ions increase |
| Answer» Because ph is inversely proportional to hydrogen ions | |
| 57258. |
Why does lack of iodine cause poorer?? |
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Answer» Iodine is essential for the synthesis of the thyroxine hormone in the thyroid gland. If there will be a lack of iodine then there will be a disturbance in the synthesis of thyroxine hormone. Due to which it can lead to certain diseases like goitre (Swelling of neck).Hence, it is advisable to use iodised salts too...I hope you liked it...? Goitre |
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| 57259. |
Electrolytic reaction |
| Answer» Those reaction which take place in the presence of electricity is called as a electrolytic reaction. | |
| 57260. |
What is oxidation nd reduction |
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Answer» Oxidation:- It is defined as the addition of oxygen or removal of hydrogen.(ii) It involves losing of electrons.Reduction:- It is defined as the removal of oxygen or addition of hydroygen.(ii) It involves gaining of electrons.I hope you liked it..... ? The addition of oxygen and removal of hydrogen is known as oxidation whereas removal of oxygen and addition of hydrogen is known as reduction Oxidation is gain of oxygen and reducrion os Is loss of oxygen |
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| 57261. |
Why are rays taken parallel when object is kept at infinity in a concave mirror |
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Answer» Because of a large distance Because the object is very much far away from the mirror . The distance between them is so much that the rays coming from the object becomes almost parallel when they strike mirror |
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| 57262. |
What is a neurone |
| Answer» Neuron is the functional unit of kidney. Our kidney consist of one million nephron. | |
| 57263. |
Magnetic effects of electric current lesson |
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Answer» When current passes through a conductor then the magnetic field originated around it. The area around a magnet on which force of attraction and repulsion can be easily visualise ,this area is known as magnetic field Define magnetic field |
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| 57264. |
Please write answer |
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Answer» What\'s the question bro ? Plz tell the question What was the question |
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| 57265. |
What is fusion |
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Answer» Thanks Fusion means mixing and fission means spliting |
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| 57266. |
What is the mean of IVF process |
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Answer» In ivf technique a mother whose oviducts are blocked can also give birth to a baby It is a property of metals in which they can be drawn into wires. Ivf is invitro fretilization |
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| 57267. |
Define mellable |
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Answer» A substance can be said to mallaeble when it can be converted into thin sheets on hammering ? Wire nhi sheetWire k lie ductile word use hota hai The property in which metal can be beaten and can be converted into a thin wire is called malleablity eg gold and silver are most mellable metal Mellablity is a property of metal.It means a metal can be converted into wires |
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| 57268. |
Explain the parts of female reproductive system with their functions |
| Answer» The female reproductive system in human beings is composed of following parts:Uterus: This is pear-shaped hollow muscular organ. Uterus is the place where the embryo gets implanted and develops into a newborn baby. The wall of the uterus provides safety and nutrition to the growing foetus.Fallopian Tubes: One fallopian tube comes out from each side at the top of the uterus. The fallopian tubes end in finger-like structures; called flimbriae. Fertilization happens in the fallopian tube.Ovary: There are two ovaries; one near each fallopian tube. Ovary produces the eggs or the female gametes. All the eggs are produces by the ovary when the female child is still in the womb. One egg matures in each ovulation cycle and is released from the ovary. The egg is caught by the flimbriae and transferred to the fallopian tube.******: The cervix (mouth of the uterus) opens into the ******. ****** is a muscular tube-like organs; which serves as the passage for the sperms and also as the canal during the child birth. | |
| 57269. |
Uses of hydrlogen |
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Answer» 1. Hydrogen is used in the hydrogenation of oil. Vegetable oil + Hydrogen gas gives Vegetable ghee.2. It is used as fuel in rockets.3. It is uses in making Ammonia(NH3)N2 + 3H2 gives 2NH3. The low density of hydrogen made it a natural choice for one of its first practical uses – filling balloons and airships. However, it reacts vigorously with oxygen (to form water) and its future in filling airships ended when the Hindenburg airship caught fire. In the glass industry hydrogen is used as a protective atmosphere for making flat glass sheets. In the electronics industry it is used as a flushing gas during the manufacture of silicon chips In the chemical industry it is used to make ammonia for agricultural fertiliser (the Haber process) and cyclohexane and methanol, which are intermediates in the production of plastics and pharmaceuticals. It is also used to remove sulfur from fuels during the oil-refining process. Large quantities of hydrogen are used to hydrogenate oils to form fats, for example to make margarine. Some see hydrogen gas as the clean fuel of the future – generated from water and returning to water when it is oxidised. Hydrogen-powered fuel cells are increasingly being seen as ‘pollution-free’ sources of energy and are now being used in some buses and cars. |
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| 57270. |
Show me cell structure |
| Answer» How can we show the structure | |
| 57271. |
Why are the magnetic field lines colsed curves |
| Answer» Magnetic field lines represent continuous curves that originate at the north pole of a magnet and end at the south pole. Inside the magnet they travel from the south pole to the north pole.A magnetic dipole ( North pole and South pole pair) produces a field whose lines do not start or do not end at some point. A field line either extends towards an infinity or forms a close loop.Electric fields can originate even when there is a single charge present and they can end on another charge or exist that way. But there is NO isolated magnetic pole or a monopole. They always come in N-S pairs. So there is no source or a sink for magnetic field lines.The net flux of the magnetic field through any closed surface is zero. All the field lines that enter through the surface into a volume enclosed by the surface also exit through the surface.Hence Magnetic field lines always are closed loops. | |
| 57272. |
How can a lostrous material shine again |
| Answer» By the use of certain acids or mixture of acid.It depends on which metal it is. In some cases sand paper is often used | |
| 57273. |
Why is charcoal consider to be a better fuel than wood |
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Answer» Charcoal has high calorific value than wood When a we burn wood in low oxygen then its become charcoalCharcoal produce high energy and low smoke and oppositly wood profuce low energy and high smoke thats why charcoal considred goog fuel then wood |
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| 57274. |
Why ammeter is connected in siris and voltmeter is connected in parallel ? |
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Answer» If ammeter is used in series then the current divides in two path. So we can\'t find total current in a circuit ammeter is used in series because it measures the total current in circuit and voltmeter is used in parallel because it measures the volt of a particular resistance . Becouse ammeter measure Current and voltmeter measure volt |
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| 57275. |
What is guard cell |
| Answer» The been shaped cells present around the stomata which help in opening and closing of stomata are called guard cells | |
| 57276. |
carbon is a metal or nonmetal |
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Answer» ARE KAHA JII RAHE HO, CHEMISTRY KI WAAT LAGA DOGE .CARBON NON-NON-METAL HAI BHAYIYO AUR BHAYIYO. Metal Carbon is non metal but it shows metal property also. In reaction 95% carbon shows property of non metal and in5% reaction it shows metal property. carbon is non metal because it take electron from other metal Metal Carbon is non metal |
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| 57277. |
How many litre of blood in adult human beings |
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Answer» 5 to 6 litred 5 to 6 litre blood in adult human beings 5 to 6 litres. |
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| 57278. |
Give three points why the human lungs are designed to have maximum surface area |
| Answer» Lungs have alveolar sac | |
| 57279. |
State one reason that has necessitated to look for alternate source of energy |
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Answer» The geological processes of mineral formation are so slow that the rates of replenishment are infinitely small in comparison to the present rate of consumption. Because alternate energies do not cause pollution and are renewable |
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| 57280. |
What is law of concave mirror |
| Answer» | |
| 57281. |
What are nobel gases |
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Answer» Nobles gas are those gas which complete their last sheel by gainig or loosing or naturally Non reactive or intret gas is called noble gas Whose last shell has completed their octet.Moble gases are helium, neon, argon, xenon, etc. Argon and helium ... Hope so?? Whose last shell has an octet |
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| 57282. |
Write the remarkable feature of Mendeleevs periodic law |
| Answer» Remarkable features about Mendeleev\'s periodic law are:Basis of classification: Elements were grouped on a more fundamental basis than earlier attempts.i) Mendeleev\'s periodic table contains vertical columns called group and horizontal rows called periods.(ii) Prediction of properties of new elements: Because of their placement in the periodic table, properties of several yet to be discovered elements like scandanium, gallium and germanium could be predicted.(iii) Correction of atomic weights/masses: Mendeleev gave more weightage to similarities in properties of elements rather than atomic masses. So, atomic masses of some elements got corrected. Atomic weight of elements like gold and platinum could thus be corrected.(iv) Inert gases: The discovery of new elements, inert gases, did not disturb the arrangement and it found place as a new group.(v) Gaps for 40 new elements was kept. | |
| 57283. |
what is the difference between acquired traits and inherited traits |
| Answer» Inherited traits can be passed to the next generation but acquired trait cannot be | |
| 57284. |
What are amphoteric oxudes?? |
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Answer» *oxides Oxide which show both acid and bases behaviour to form salt and water Oxides which show the properties of both acidic and basic are termed as amphoteric oxides. Eg:- Aluminium oxide Oxide which when react with acid behaves asbase and vice versa. Amphoteric oxides behave as both Acid and Base *oxides |
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| 57285. |
How sodium zincate formed? |
| Answer» Zn+2NaOH—>Na2ZnO2+H2 | |
| 57286. |
Define ores |
| Answer» Those minerals from which the metal can be extracted profitably are called ores | |
| 57287. |
Which metal is found in liquid state at room temperature? |
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Answer» Mecury only sometimes gallium also. Mercury and bromine Mercury |
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| 57288. |
Simbiotic mode of nutrition |
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Answer» But not sure Those organisms which depend on other other organism for both food and shelter is called as..... |
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| 57289. |
Write short note on chloroplast |
| Answer» Chloroplast is a place where photosynthetic process occur | |
| 57290. |
Hii??, what is noble gas cofiguration???? |
| Answer» Hellium=2Neon=2,8Argon=2,8,8 | |
| 57291. |
What is the common name of compound caOcl2 |
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Answer» plaster of Paris is the common name Three names:Calcium oxychlorideBleaching powderChloride of lime. Chemical name : calcium oxychlorideCommon name : bleaching powder Bleaching powder Bleaching powder CaOcl2(calciumoxy chloride Calcium oxy chloride |
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| 57292. |
Homoglobin define |
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Answer» Homoglobin is present in our blood and it is red pigment in RBC Haemoglobin is a red pigment which is present in RBC.It jas high affinity affiliate towards oxygen. |
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| 57293. |
Why we do not add slip in electric motor construction? |
| Answer» | |
| 57294. |
Who do birth control |
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Answer» Parents People in case of unwanted pregnancies opt for birth control Male |
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| 57295. |
Justify that DNA contains the blue print of next generation. |
| Answer» DNA called the blueprint of life becauae it contain the instructions needed for an organism tp grow ,develop, survived. DNA directs the construction of cells and organism | |
| 57296. |
What\'s is physical change and chemical change |
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Answer» In physical change new substances do not form but in chemical change new substance form In p.c no new substance are formedand in c.c new substances are formed In physical change no new substance produce, in chemical change new substance produce |
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| 57297. |
Why should a magnesium ribbon be cleand before burning on air |
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Answer» So as ti remove a layer of magnesium carbonate. How mgo or mg2co3 is formed because magnesium do not react with oxygen at room temp. And if suppose mgo is formed then in our enironment only 0.003%of co2 is available and it is very difficult for mg to make mg2co3 . The magnesium ribbon should be cleaned to remove a protective layer named as magnesium carbonate Its actually to remove layer of mgo and mgco3 both. (Mgco3 forms in special case ). To remove the layer of magnesium oxide formed on its surface We should a magnesium ribbion be cleaned before burning in air to remove the layer of magnesium carbonate formed on it which hibders the burning of magnesium |
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| 57298. |
What is the role diaphragm? |
| Answer» The diaphragm is the most efficient muscle of breathing. It is a large, dome-shaped muscle located at the base of the lungs, separates the thorax from the abdomen in mammals. Abdominal muscles help move the diaphragm. With the contraction of and relaxation of the diaphragm, the lungs also expand and contract. | |
| 57299. |
What do you mean by sexual reproduction |
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Answer» The fusion of the male and female gamete ( which are haploid i.e. the chromosomal no. half ) resulting in the formation of a diploid ( contains fusion of 2 haploid cells ) cell called zygote is called as sexual reproduction Sexual reproduction is a process where male gamete and female gamete fertilise together... Slower process of reproduction 2 individual are involed 2 Gamets are involed The reproduction done by the help of *** |
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| 57300. |
Write two functions of fore brain |
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Answer» It is used to control mental activities of body.It is also used for see, think, etc. 1. Fore Brain is the thinking part of brain and stores information. 2. It has centers of hunger thrist 3. Receives information from various body parts and integrate them. 4.Controls voluntary actions The forebrain is responsible for a variety of functions including receiving and processing sensory information, thinking, perceiving, producing and understanding language, and controlling motor function |
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