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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.
| 37901. |
Why water can\'t be written as OH2 instead of H2O? |
| Answer» Because water contains 2 molecules of hydrogen and one molecule of oxygen. | |
| 37902. |
Acide present in tomato |
|
Answer» Oxalic present in tomatoooo Oxalic acid |
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| 37903. |
What is nonmetallic compound |
| Answer» A non metallic compound is a compound that contains no metal elements.Some example are: Carbon DioxideCO2 ,Water H2O, Ethanol C2H5OH ,Sulphor dioxide SO2 | |
| 37904. |
what is molecular formula of ethanol |
|
Answer» c2h5oh C2H60 C2H5OH |
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| 37905. |
What is,atmospheric refraction |
| Answer» The refraction takes place in the atmosphere is known as the atmospheric refraction | |
| 37906. |
Which signal will get disrupted in a case of a spinal cord injury |
| Answer» | |
| 37907. |
Why a glass slab cant show dispersion |
| Answer» | |
| 37908. |
How does fe2o3 made can you explain |
| Answer» | |
| 37909. |
Derivation of mirror formula |
| Answer» 1/v +1/u = 1/f | |
| 37910. |
अगर space voccum है तो sun burn kaise karta hai? |
| Answer» | |
| 37911. |
What do you mean by refraction |
|
Answer» When Ray of light enter from one medium to another it deviates from its path When a light enters from one medium to another medium it will bend is known as refraction |
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| 37912. |
Difference between binary fission in ameba and planaria |
| Answer» Planaria reproduces by regeneration not by binary fission | |
| 37913. |
Justify solar energy and nuclear energy are the two faces of the same coin. |
| Answer» | |
| 37914. |
Which vertigial organ in man suggest that he is a descendend of harbivirous mammals |
| Answer» Back bone | |
| 37915. |
Defination of rarer and denser medium |
| Answer» Rarer means jo medium ka density kam hota hai and denser means jo medium ka density jyada hota hai as compared to the first medium... | |
| 37916. |
Which act implement the right to work |
| Answer» | |
| 37917. |
Which book is batter for science |
|
Answer» for learning :HC VERMA Reliable or oswaal Xam idea or pradeep |
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| 37918. |
What is linear magnification?Give some example. |
| Answer» It is the ratio of height of image to the height of object | |
| 37919. |
which type of question coming in cbse 2018 exam |
| Answer» | |
| 37920. |
I don\'t know that what of questions are coming in 2018 cbse board exam. Please tell me some clues. |
| Answer» | |
| 37921. |
Relation between workdone and potential difference |
| Answer» When charge is constant then work done is directly proportional to potential difference | |
| 37922. |
Periodic table of chemistry chapter 5 |
| Answer» | |
| 37923. |
How exchange of gases take place in plant at night time? |
| Answer» | |
| 37924. |
What is permagnate |
| Answer» | |
| 37925. |
What is alloys? |
| Answer» Alloy is a homogeneous mixture of two or more metals , non metals, metal or non metals | |
| 37926. |
Ph of sugar |
|
Answer» 7 hai Sugar has no ph yarr |
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| 37927. |
Is burning of candle ,a physical change or chemical change? |
| Answer» In a burning candle, there are both physical and chemical changes. The melting of the solid wax to form liquid wax and the evaporation of liquid wax to form wax vapour are physical changes. The burning of the wax vapour is a chemical change. | |
| 37928. |
Tyndal effact |
| Answer» The Tyndall effect is the scattering of light as a light beam passes through a colloid. The individual suspension particles scatter and reflect light, making the beam visible. The amount of scattering depends on the frequency of the light and density of the particles.Tyndall effect is similar to Rayleigh scattering, in that the intensity of the scattered light depends on the fourth power of the frequency, so blue light is scattered much more strongly than red light. The longer-wavelength light is more transmitted while the shorter-wavelength light is more reflected via scattering | |
| 37929. |
What is the difference between pepsin and trysin ? answer in one word and one sentence |
| Answer» \tSl.NoPepsinTrypsin1.It is an enzyme which is secreted by the stomach.It is an enzyme secreted by pancreas.2.It is involved in digestion of proteins which are found in ingested food.It also helps in digestion of partially digested proteins in the stomach and then converts them into dipeptides.3.It is secreted as an inactive zymogen known as pepsinogen.It is secreted as an inactive form known as trypsinogen.\t | |
| 37930. |
What is angle of deviation |
| Answer» The peculiar shape of the prism makes, the emergent ray bend at an angle to the direction of the incident ray. This angle is called as angle of deviation. | |
| 37931. |
Nomenclature ki detonation |
| Answer» | |
| 37932. |
What do you mean by anodising in chemistry |
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Answer» It is a process used to increase the thickness of natural oxide layer on the surface of metal parts . anodising increases the resistance to corrosion. Coat (a metal, especially aluminium) with a protective oxide layer by an electrolytic process in which the metal forms the anode. |
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| 37933. |
Which fluid are filled in brain meninges. |
|
Answer» Cerebrospinal fluid CSF |
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| 37934. |
Name any two elements which are later fixed in mandleev periodic table |
| Answer» Chemically inert elements | |
| 37935. |
How respiration is exothermic process ? |
| Answer» After breaking down of glucose into energy there is heat evolved and the reaction in which heat evolved in known as exothermic reaction | |
| 37936. |
What is alleles? |
| Answer» Each of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome. | |
| 37937. |
What is Alles |
| Answer» Each of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome. | |
| 37938. |
Describe a method to find the focal length of a concave mirror |
| Answer» Material Required -A concave mirror, a mirror holder, a white screen fixed on a stand or a white wall, an object (candle) and a metre scale.Procedure - Fix concave mirror to mirror holder and place it on table.Turn the face of mirror towards a distant object (a candle in this case). The selected object should be visible with your naked eyes.Adjust the position of the screen in such a way that it forms a clear image of the candle on the screen.Measure the distance between the concave mirror and the screen with a metre scale. Record your observations in observation table. Repeat the experiment two or three times and find the mean value of the focal length.\u200bAs performed in the simulatorDrag the screen by clicking on point A of the screen till you get a sharp image of the object.Measure the distance between the concave mirror and the screen with given metre scale. This measured distance is focal length of concave mirror.Repeat the process two or three times. Take the mean of the measured focal length. | |
| 37939. |
What will happen if we kill all the organisms in one trophic level. 2mrks |
| Answer» The next tropic level organisms will not exist. | |
| 37940. |
Why fire flies glow at night |
| Answer» Fireflies produce a chemical reaction inside their bodies that allows them to light up. This type of light production is called bioluminescence. The method by which fireflies produce light is perhaps the best known example of bioluminescence. When oxygen combines with calcium, adenosine triphosphate (ATP) and the chemical luciferin in the presence of luciferase, a bioluminescent enzyme, light is produced.Fireflies appear to light up for a variety of reasons. The larvae produce short glows and are primarily active at night, even though many species are subterranean or semi-aquatic. Fireflies produce defensive steroids in their bodies that make them unpalatable to predators. Larvae use their glows as warning displays to communicate their distastefulness. | |
| 37941. |
What will happen when egg is not fertilised |
| Answer» When egg has not fertilized, body will stop releasing the hormones, that was being secreted to prepare the uterus in anticipation of the developing egg. As a consequence the uterine lining will be shed. The unfertilized egg will get dissolved, and pass down the uterus, along with this uterine wall,ultimately coming out with blood. Henceforth, the next menstrual period will begin. | |
| 37942. |
In which female reproductive organ does the embryo get embedded. ... |
| Answer» In womb | |
| 37943. |
What is gaunge |
| Answer» The unwanted impurities present in ore......???? | |
| 37944. |
Eletronegative |
| Answer» | |
| 37945. |
Metals and non metal |
| Answer» A solid material which is typically hard shiny, mellable, fusiable, ductile and electrical and thermal conductivity is called matals . eg aluminum iron etc. | |
| 37946. |
What is. Meant by perptose |
| Answer» | |
| 37947. |
What is hymen? |
| Answer» The hymen is a membrane that surrounds or partially covers the external vaginal opening. It forms part of the vulva, or external genitalia, and is similar in structure to the ******. The most common hymen is shaped like a half moon . This shape allows menstrual blood to flow out of the ******. | |
| 37948. |
How does gene get expressed itself |
| Answer» | |
| 37949. |
Function of cornea? |
| Answer» It is a thin ,transparent membrane bulged outside which helps in entering of light | |
| 37950. |
What is the difference between regeneration and fragmentation ? |
| Answer» Fragmentation is when an organism is split into fragments, and each fragment grows into complete, individual organisms that are clones of the original organism.The difference is that fragmentation specifies two parts each growing into complete organisms, but regeneration is simply a general process of regrowth. | |