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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.
| 45251. |
What is the differnence between rainwater hatvesting and rooftop harvesting |
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Answer» Rooftop rainwater harvesting is one such method Rooftop harvesting is a small topic which comes under rainwater harvesting.Rainwater harvesting can be done in many other ways.Some of the ancient Indian rainwater harvesting strutures are: khadins ,kulhs,kattas,etc.. |
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| 45252. |
Can anyone tell what marks comprises for heridity in boards |
| Answer» 5 [email\xa0protected] | |
| 45253. |
How does works generator |
| Answer» Based on the principle of electromagnetic induction | |
| 45254. |
Pls tell fast |
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Answer» I\'ve cleared ur doubt Preeti Rahi Where\'s the question |
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| 45255. |
What is the formula for calculating zero error??? |
| Answer» There is no formula dear for that please query ur doubts below by reading this-:Can you explain the calculation of zero error with an example?Zero error arises when the measuring instrument does not start from exactly zero (When at rest).Due to this zero error is present in each reading of the measure.There are two types of zero error : positive zero error and Negative zero error.(Taking Vernier caliper as an example)Positive zero error :If the zero marking of the Vernier scale lies on the right hand side of the zero marking of the main scale , then the error is said to be positive zero error. Look at the position of zero of the vernier scale on main scale.For example : if the reading is 0.1 mm then it is said that the caliper has an error of +0.1. To eliminate positive zero error the zero error should be subtracted from the total reading. For example if the total reading is 3.56 cm and the error is +0.05 then the actual reading would be 3.51 cm.THANK YOU @diti. | |
| 45256. |
Qhy residual volume of air is maintained in lungs |
| Answer» So that there is sufficient time for CO2 to be released and oxygen to be absorbed | |
| 45257. |
Hello nisha |
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Answer» Haa maine dekha Neeche h ravi Hello |
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| 45258. |
What are alveoli what is their function |
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Answer» Alveoli r richly supplied with blood vessels. Balloon shaped air sacs which helps in exchange of gasses. Alveloi are the ballon like structures in the lungs.Function:1)increase surface area for respiration2)they are richely supplied with blood vessels..... |
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| 45259. |
What are the limitations of Mendeleev\'s and Modern periodic table |
| Answer» Please refer ncert for such long questions...yahan par itna sara type karna mushkil kota h | |
| 45260. |
Explain the process of flowing current in ac generator.? |
| Answer» | |
| 45261. |
how life came on earth |
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Answer» *by By rain of meteors...then bu the formation of carbon compounds.... |
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| 45262. |
What happened when zinc metal reacts with HCL |
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Answer» Hydrogen gas is evolved Zinc metal reacts with dil. HCL to form it\'s chloride..... Zn + 2HCL ---> ZnCl2 + H2There is a evolution of hydrogen gas which can be observe by bringing the burner near it..... Burner will off with pop sound!.... ? Zn+HCl-->ZnCl2+H2.Zinc chloride will form hydrogen gas will be liberated (evolution of colourless gas) Zn + hcl. —>zncl +h2 |
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| 45263. |
Why we are use barrier method?where are install this barrier methods? |
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Answer» In female or male Yes we use To avoid fusion of male n female gametes we use barrier methods... |
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| 45264. |
Name the blueprint responsiblefor making all basic body designs |
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Answer» DNA Ptani bhai hame to |
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| 45265. |
Waht are the methods of fertilization |
| Answer» | |
| 45266. |
Chemical name of rust |
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Answer» fe2O3.xH2O fe2.O3.xH2o Ferrous oxidefe2.O.xH2O ferrous oxide Corrosion |
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| 45267. |
What is 1 dioptre |
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Answer» 1 dioptre is the power of lens whose focal length is 1 metre.. The lens which have f=100cm so the power of lens is 1 dioper 1 dioptre is the power of the lens whose focal length is in meters |
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| 45268. |
What are the morphological and psychological changes seen in boys and girls during puberty |
| Answer» Morphological changes:-Boys- 1) widening of chest 2) appearance of hair on chest,face,arm pit and pubic region Girls- 1) widening of pelvis 2) increase in breast size 3) appearance of hair on pubic region and under arm pitPsychological changes:-Boys and girls- 1) increase in activity of sweat gland 2) development of *** organs | |
| 45269. |
What is l alvcolus and mention its function |
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Answer» This question is of which ch. What is alvcolus and mention its function |
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| 45270. |
Why was the temporary Mount of the leaf epidermal peel Pinkinsh in color |
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Answer» Because it is dipped in safranin Beacust it was dipped in sapphrine and glycerine was put on it .....i am not sure btw |
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| 45271. |
Why copper wire is not suitable for fuse |
| Answer» Low melting point | |
| 45272. |
Diagram of binary fission in leishmania |
| Answer» ????Great!? How one will draw it here. | |
| 45273. |
Give the advantages and disadvantages of vegatative propagation.. |
| Answer» Advantage:It is benificial to those plants who don\'t have seeds like banana.Disadvantage:It does not creates much variations. | |
| 45274. |
Is there any numerical based on convex mirror? |
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Answer» Aapko kisssi ache website question papers ke liya patha hai Yess... Yesss |
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| 45275. |
Difference between baking soda nd baking powder |
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Answer» Aap ka naam kya hai Thank u whom soever u r Baking powderis a mixture of baking soada and tartaric acid |
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| 45276. |
Good example for double displacement and precipitation reaction?????? |
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Answer» Na2Co3+CaCl2→2NaCl+CaCo3Here, CaCo3 is percipitate. See ncert 1st ch...under the heading double displacement reaction.. BaCl2+Na2SO4 gives NACL +BaSO4 |
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| 45277. |
What do u mean by saprophytes |
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Answer» Microorganisms which live on dead and decayed organisms Those organisms who feed on dead and decaying organic matter are called saprophytes.... |
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| 45278. |
Ok one last ... What are the uses of washing soda and baKing soda?? 2 points of each.?? |
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Answer» Ur most wlcm ☺☺☺ Thanks☺☺☺ Uses of washing soda1.used for removing permanent hardness of water2.used as cleaning agent for domestic purposeUses of baking soda1.used for making baking powder.2.used as fire extinguisher Washing soda ----> it is used as a reagent in the laboratory.....it is used in paint and dyes...... and Baking soda-----> it is used as an antacid in making digestive powders for removing acidity of stomach ..... it is used in making baking powder...... |
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| 45279. |
why should a magnesium ribbon be cleaned befor burning in air |
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Answer» you are wrong In order to remove the layer of magnesium oxide Its ncert question....... yu can get it in this app |
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| 45280. |
What is a brine.... |
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Answer» Thanx guys..... Cold and concentrated aqueos solution of Nacl Aqueous solution of sodium chloride is called brine Hi Aqueous sol. of NaCl |
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| 45281. |
What is the difference between rain water hatvesting and rooftop harvesting |
| Answer» Rainwater harvesting for domestic supply, uses the house roof and guttering to collect rain water. Commercial rain water harvesting for bottled water uses long sheets of polythene stretched out on the slope of a hill, the rainwater runs down into storage tanks, filtered and bottled. | |
| 45282. |
Why does the male reproductive part is known as unigentle system |
| Answer» Bcoz of use of common ducts (urethra) for the flow of semen (product of reproductive system) and urine (product of excretory system) outside the body.............hope it will help yu??? | |
| 45283. |
Why does an Aqueous solutions of acid conduct electricity |
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Answer» Because aqueous solution contain mixture of acids that have free electrons and h+ions which carry electricit Bcoz aqueous solution have free ions which can conduct the electricity Because liquid carry electricity Because aqueous solution have ions ( H+ ions) which conduct electricity. |
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| 45284. |
What is difference between short circuting and overloading ? |
| Answer» Short-Circuit\tOccurs when live comes in contact with neutral wire\tHigh amount of current flows through the circuit.\tThe potential difference at the point of short-circuiting will drop to zero.Overload\tOccurs when large number of appliances are turned on simultaneously.\tLow amount of current flows through the circuit as compared to short-circuit.\tThe potential difference does not drop to zero but it does reduce. | |
| 45285. |
What are two faraday experiments and what they tell us |
| Answer» See vdo on utube of dronstudy | |
| 45286. |
What is colour of bromine water |
| Answer» Orange brown | |
| 45287. |
Define carboxylic acid |
| Answer» Carboxylic acid is a class of organic compounds that are characterized by the presence of carboxyl group (-COOH) in them. The general formula for carboxylic acids is R – COOH where R refers to the rest of the molecule. Acidity of carboxylic acids is generally higher compared to simple phenols as they react with weak bases like carbonates and bicarbonates to liberate carbon dioxide gas. | |
| 45288. |
When hcl is added in phenolphthalein what observation will be observe |
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Answer» If dilute HCl is added to the solution then the color of the solution get fades and if we keep on adding HCl, the solution becomes colurless. As HCl being a strong acid will neutralize NaOH. It is observed that no colour is obtained or colurless solution is obtained |
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| 45289. |
Why glass slab doesnot disperse white light |
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Answer» Thnqss When parallel-sided glass slab is placed in a beam of white light. Dispersion takes place inside the slab but, since the rays which emerge from the slab all run parallel to one another, the dispersed colours recombine to form a white light again and no dispersion is observed except at the very edges of the beam. It follows that the dispersion of white light through a parallel-sided glass slab is not generally a noticeable effect. |
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| 45290. |
What is Halogenation/substitution reaction with example |
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Answer» CH3Cl + Cl2 ---------> CH2Cl2 + HCL...... arrow ke upar sunlight likh dena..... The reaction in which one or more hydrogen atoms of a hydrocarbon are replaced by some other atoms are called substitution reaction...... Carbon wala chapter smjh nahi aa rha koi mujhe pdha do? |
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| 45291. |
Give me easy explanation for electric motor and ac motor for boards |
| Answer» | |
| 45292. |
Explain in detail cleansing action of soap on dirt on cloth. |
| Answer» Because soap is an basic in nature and when we clean our cloth with soap it start react with dirty particles . | |
| 45293. |
Name the acid present in ants strng |
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Answer» Methanoic and formic acid Methanoic acid.. |
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| 45294. |
Give any 5 adaptations in leaves for photosynthesis. ..... |
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Answer» 100% sure Yess I m sure yes it did..Thanku but are u sure ki chloroplasts upper surface pr jada hote hn ??ya lower 1. Leaves provide large surface area for exchange of gases....2. Presence of numerous stomata for gaseous exchange.....3. Chloroplast are more in number on upper surface of leaves....4. Extensive netwrk of veins enable quick transport of substances.......HOPE IT HELPS YU? |
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| 45295. |
What is laboratory test for Hydrogen sulphide |
| Answer» | |
| 45296. |
Why acetic acid is called weak acid? |
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Answer» Because they do not desociate much hydronium ions in the watet Less concentration of hydrogen ions |
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| 45297. |
Differences between exhaustible and inexhaustible |
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Answer» How we return it in detail Exhaustible resource r non - renewable resource ........Inexhaustible resource r renewable source of energy Renewable and non-renewable |
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| 45298. |
What is the other name of the regular reflection? |
| Answer» Specular reflection. | |
| 45299. |
Descirbe various path of glucose break down in organism |
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Answer» Firstly gulcose is break down into paruvate acide and then present of oxygen it spleat onto co2, o2 , h2o and ATP And in absent of oxygen it break down intolactic acid and o2 Gulcose brak down in both condition present of oxygen and absent of oxygen |
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| 45300. |
Common salt conducts electricity only in molten state. Why????? |
| Answer» Because in solid state electric charges cannot move in it due to no free electron and in molten state ions can move freely | |