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.
| 67901. |
D/b Concave mirror and convex mirror |
|||
| Answer» | BASIS FOR COMPARISON | CONVEX MIRROR | CONCAVE MIRROR | \t\t\tMeaningConvex mirror implies the mirror whose reflecting surface is away from the center of curvature.Concave mirror refers to the mirror whose reflecting surface is towards the center of curvature.ShapeCenter of curvatureLies behind the mirrorLies in front of the mirrorTypeDiverging mirrorConverging mirrorImageVirtual image is formed.Real or virtual image is formed.Used asRear view mirrors in cars and bikes.Reflectors in projectors, searchlights etc.\t|
|---|---|---|---|---|
| 67902. |
Element harmful for human body |
|
Answer» I will not i have to care my grandfather Some element harmful but all element not harmful *like mercury harmful* Methanez |
|
| 67903. |
What reaction in nuclear fusion |
| Answer» | |
| 67904. |
We often use the word environment. What does it mean?? |
| Answer» Kya hal hai ritika ji......... | |
| 67905. |
What is menopoles |
|
Answer» Ovaries do not fertilise the egg ye bhi answer sahi hai Menopoles this not correct this correct in menopause is many symptoms in woman Ovaries are do not fertilise the eggs This a diseases Which is made in only women 12months have missed in menses |
|
| 67906. |
Differentiate between cacination and roasti g.give 5 points |
| Answer» Roasting vs CalcinationRoastingCalcinationOne is heated in the presence of excess of oxygen or air.\tone is heated in the absence or limited supply of oxygen or airThis method is employed for sulphide ores.\tThis method is employed for carbonate ores.Sulphur dioxide is produced along with metal oxide.\tCarbon dioxide is produced along with metal oxide.Example: For the ores ZnS (sphalerite) and Cu2S (chalcocite), balanced equations for the roasting are:2ZnS+3O2-->2 Zno+ 2SO22 Cu2S + 3O2 → 2 Cu2O + 2 SO2Example: ZnCO3--> ZnO+ C02 | |
| 67907. |
How we can make chemical eqation more informative? |
| Answer» Physical stateii)\tHeat exchange (exothermic or endothermic change)iii)\tGas evolved (if any)iv)\tPrecipitate formed (if any)i) Expressing the physical state : The physical state of the substances may be mentioned along with their chemical formulae. The different states i.e., gaseous, liquid and solid states are represented by the notations (g), (Z) and (s) respectively. If the substance is present as a solution in water, it is represented as (aq). | |
| 67908. |
Metal\'s physical and chemical properties. |
| Answer» Physical properties1 ductile2sonorus3 malleable4 hard | |
| 67909. |
When metals are treated with hno3 hydrogen gas is not liberated why? |
|
Answer» Normally when metals are teated with acids, a corresponding salt is produced along with the liberation of hydrogen gas.i.e. Metal + Acid* ----> Salt + Hydrogen (g)However, nitric acid (HNO_3) being a strong oxidizing agent** oxidizes the hydrogen gas (produced when it reacts with metals) to give water and itself gets reduced to an oxide of nitrogen which combines with the metal.i.e. Metals*** + Nitric Acid ----> (Nitrogenous) Salt + WaterHowever, Manganese and Magnesium react with dilute nitric acid to give hydrogen gas.i.e. Mg or Mn + Nitric Acid ---> Salt + Hydrogen (g)____________________________________________________________________________________________Notes:* Except Nitric Acid** (here) A substance which loses oxygen and adds it to another substance*** Except Mn or Mg It is because HNO3 is a strong oxidising agent. It oxidise the hydrogen to form water. But in some cases like Mg and Mn react with very dilute nitric acid (HNO3 ) to form hydrogen.. |
|
| 67910. |
Why the rainbow formed round to earth |
| Answer» | |
| 67911. |
Describe various pathe of gulcose break down in organisms |
| Answer» These are the three pathways of breakdown in living organisms:- First one is the breakdown of pyruvate molecule in mitochondria. The products formed depend upon the organisms’ type.- Aerobic respiration takes place in the presence of oxygen and converts private into carbon dioxide.- The three one is anaerobic respiration which occurs in the absence of oxygen and convert pyruvic acid into ethyl alcohol or lactic acid | |
| 67912. |
The sun appear reddish in morning why |
|
Answer» Hinglish language......???? Yahi toh apna style hain wow wonderful use of hinglish language...... Subah mein sun horizon ke door hota hain aur usse aane wali prakash keerne eksaath nikalte hue prithvi ke paas aati hain. When these rays passes thru the atmosphere they disperse and all the blue colour light disperse first than the red one and we see only reddish color of the sun |
|
| 67913. |
please anyone tell me important part of ch.. Heredity |
| Answer» Chromosome, gene, dominant gene, recessive gene, geno type ,phenotype,f1generation and f2 generation _ definations? Difference between inherited and acquired traits? *** determination? Speciation and its factors which will lead to rise of new species? Evolution and its two types- homolgus and analogus.? Mandel\'s contribution-1 pea plant and yellow and round seeds and green and wrinkled seeds? And last fossils? | |
| 67914. |
Tell me the blua print of social studies |
| Answer» | |
| 67915. |
How are alkenes converted into alkanes? |
|
Answer» By applying the process of hydrogenation Ur most wlcm........☺ Thank u puja By the process of hydrogenation...... |
|
| 67916. |
Ethanol is a liquid at room temperature. discuss its physical and chemical properties |
|
Answer» Thank you yati ? Thank you puja ? Physical properties of ethanol are :-1) colourless 2) melting point is 156k and boilng point is 351k3)common name of ethanol is alcohol 4) liquid at room temperature 5) used in medicines and cough syrup too Chemical properties of ethanol are :-1) reaction with sodium: C2H5+sodium gives sodium ethoxide +hydrogen gas2) reaction with H2SO4: C2H5 gives in the presence of hot concentrated H2SO4 gives C2H4+H2OHope it helps you.. Physical properties of Ethanol:(i) Pure ethanol is colorless liquid.(ii) It has specific smell and burning taste.(iii) It is soluble in water.......................... Chemical properties of Ethanol : (i)Ethanol burns in air to give CO2 and H2O.(ii)Shows no reaction with baking soda.(iii)Reacts with ethanoic acid(in the presence of H2SO4) to form sweet smelling substance ester........ |
|
| 67917. |
Why do all the gametes formed in human females have an X chromosome? |
| Answer» Thats how tue body is...girl?? | |
| 67918. |
Sarah rani u r online |
|
Answer» Yes Yes |
|
| 67919. |
What is phytogeny? |
| Answer» | |
| 67920. |
Experiment to determine the equivalent resistance of two resistors connected in prallel |
| Answer» Textbook khol adi bhai | |
| 67921. |
Generally metals are not in free state. give reasons. |
|
Answer» Thnx Honey is right As it depends upon their reactivity , most of the metals are very reactive and only few metals ate there which are vey inert in nature and can be obtained in free states like gold , silver etc Little space between molecules present in them |
|
| 67922. |
Type of lens used in presbyopia? |
|
Answer» Bifocal lens Bifocal lens..... that has both type of lens..... Concave and convex lence 2 On the upper side concave lens and on the lower side convex lens |
|
| 67923. |
What is accurate meaning of PNS in short |
|
Answer» Peripheral Nervous System Peripheral nervous system Peripheral nervous system it consist all nerves of our body like cranial nerves spinal nerves and visceral nerves Peripheral nervous system Pns conect cns to sensory organ |
|
| 67924. |
What is different between asexul.and. sexual reproduction.??? |
|
Answer» Or ap book me se dekh lijiyega..... hope it will help yu...... Asexual Reproduction1. It involves the participation of single individual parent.2. It generally occurs without the formation of *** organs.3. It does not involve meiosis or reduction division.................. Sexual Reproduction1. It involves participation of two separate parents.2. It ususally requires the formation of *** organs.3. It involves meiosis. |
|
| 67925. |
Bio learn nhi ho rha Koi tips hai kisike pas its urgent plzz frnds help |
|
Answer» Ur very kind?? Ur most welcom......☺☺☺ Kk thnx puja Just kidding, just ckear yur concepts and try to understand not to learn everything.......?? Phone rkho pehle or book pkdo??? |
|
| 67926. |
Hiiiiiiiiiiii............!? |
|
Answer» Kya ho Gaya aaj sabko koi mere se baat kyu nhi kr raha Hlo Paii |
|
| 67927. |
Function of armature in ac generator |
| Answer» The armature is a conductor or a conductive coil.\xa0which carries current.\xa0the arrangement of magnets, coil, spilt rings is called armature.Armature is the rotating part of the motor. In DC motors ,the armature is supplied with current. When this current carrying armature is kept in a magnetic field it will experience a torque and starts to rotate. | |
| 67928. |
Function of slip ring in ac generators |
|
Answer» Slip rings are two hollow rings to which two ends of the armature coil are connected. These rings rotate with the rotation of the coil.\xa0Its purpose is to allow for electrical contact with the brushes. Wo Split ring hota h |
|
| 67929. |
Hello friends I am here come and join me.?? |
| Answer» | |
| 67930. |
My insta id name devil766492 |
| Answer» | |
| 67931. |
Hello everyone...Kabir paii hor aggu kithe ho tussi dohe?? |
|
Answer» Oh sorry mai bhul gi k maine hi mana kiya h apko mujhse baat krne se Ji mainu pta hai je tussi online ho...mai unki gal kr rya je online ni hai!! Shayad aaj aap meko bhul gye |
|
| 67932. |
Why saturated fatty acids harmful as comparisonto unsaturated..? |
| Answer» | |
| 67933. |
Online for time pass |
|
Answer» Hii sharma Hi |
|
| 67934. |
State any 4 disadvantages of vegetative propagation |
|
Answer» DISADVANTAGES;*It induces over crowding.\xa0*there is no genetic variation.so there is less adaptability to the environment.*the disease of parent plant gets transferred to the offspring.*the plants lose vigor. Plzzz answer my ques.... |
|
| 67935. |
What happens when zinc is added to the aqueous solution of cpper sulphate |
| Answer» Displacement reaction can be seen as zjnc been highly reactive dispalce scopper from its solution | |
| 67936. |
Give reason :- ionic compound have a higher melting point sodium is kept emerge in kerosene oil |
| Answer» Ionic compound has high melting point because they have strong force of attraction between their atoms. Sodium is kept emerge in kerosene oil because it give vigorous reaction with air | |
| 67937. |
What is ethonic acid |
| Answer» systematic chemical name for acetic acid. | |
| 67938. |
maximum power of accomodation. |
| Answer» power of accommodation. Define power of accommodation of human eye and Calculate its value for a normal human eye. The process by which the ciliary muscles change the focal length of an eye lens to focus distant or near objects clearly on the retina is called the accommodation of the eye.Hiii mate I think this will help you | |
| 67939. |
Maine niche ek shayari likhi hai..saare jrur padhyo..bahut cantt hai |
|
Answer» Sorry,replace merit by meri Merit sunoge Achi h |
|
| 67940. |
Are bye to bol do logo ab nhi aungi tumhe pareshan karne |
| Answer» | |
| 67941. |
Why carbon has versatile nature? |
|
Answer» Carbon has versatile in nature due to its properties of catenation, tetravalency,ablity to form multiple bond , 1. Because it is tetravalent.2. It shows catenation .3. And it has small size.❤ |
|
| 67942. |
How does urine regulated |
| Answer» The amount of urine produced depends on the amount of excess water and dissolved wastes present in the body. Some other factors such as habitat of an organism and hormone such as Anti-diuretic hormone (ADH) also regulates the amount of urine produced. | |
| 67943. |
How is *** determinated in humans |
| Answer» It is determined in humans by the chromosome present in humans If males we have X Y chromosome and in females they have X X chromosomes | |
| 67944. |
Is geothermal energy received his energy from sun |
|
Answer» No no Nopes |
|
| 67945. |
Pickles and Curd not stored in copper utensils.Why? |
|
Answer» They both contain acids when acid react with copper they form a poisonous salt which is harmful for our body. Pickel and curd contain acid and when acid react with metal to produce salt and hydrogen gas.when acid(present in curd and pickel) react with copper utensils to produce poisonus salt .which is harmful for our health.thats why it is not stored in cu utensils Bcause the metal react with acid an form co2 Pickles & curd contain acid which with come in contact with cu than form poisonous salt |
|
| 67946. |
HoW tO blood formed in our body??? why blood importnt for as |
|
Answer» Blood form b/w bones You are in class 10^th and right now it ain\'t necessary for us to know how blood is formed in our body.Blood is formed in bone marrow this much information is enough for now. |
|
| 67947. |
In flowering plant summarize the events that take place after fertilisation |
|
Answer» Dividing of embroye Formation of zygote and then embryo The ovary is converted into a fruit and the ovule is converted into a seed |
|
| 67948. |
How age of fossils determined |
|
Answer» Age of fossil fuel is determined by following ways{1}. If the fossil is burried deep inside the earth then it is aged or older fossil while the fossil burried not more deep insid earth are not aged or older.{2}. And we also can find information about age of fossil by carbon dating method. Age of fossils nhi age of rocks* 1)by determining the age of fossils2)carbon dating method3) potassium argon method By carbon dating method or relating method By 2 methods 1st is carbon dating and 2nd is layering |
|
| 67949. |
List three main factors responsible for the speciation and briefly describe each one of them . |
|
Answer» Genetic Drift: Random change in the frequency of genes.Natural Selection : Nature selects the fittest individual in a population.Reproductive Isolation : When two individuals are geographically isolated and natural selection operates upon them differently leading to inability of the individuals to interbreed. Go to Google we are not mendel |
|
| 67950. |
Does all non renewable sources of energy falls in the category of conventional sources of energy?? |
|
Answer» In sci only chemistry Yes,all non renewable sources of energy are conventional as well as exhaustible sources of energy, you can also refer to our geo chp : minerals and energy resources, it\'s given . Or sabhi ki board ki tayari Kasey chal rahi hai Ya |
|