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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.
| 63751. |
What is myelin sheath |
| Answer» Myelin is the insulating and protective sheath of axon which is made up of protein and fat. | |
| 63752. |
What are neurotransmitter |
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Answer» When signal is reached at end of the axon, it release tiny amount of chemical substance called neurotransmitters (acetylene) in the gap and reach at the destrites of next neuron Thwy are the chemicals that enable neurotransmission .it transmit signals across a chemical synapse such as neuromuscular junction from 1 neuron to another target neuron,muscle cell or gland cell |
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| 63753. |
What do you mean by hide brian |
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Answer» And it also help in involuntary action Its not hide brain its hind brain which consists of three parts pons , medulla and cerebellum it helps in balancing and maintaining body posture |
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| 63754. |
What happen when quicklime is added with water |
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Answer» It is an highly exothermic reaction and liberate carbon dioxide and it is a transparent solution. Ashmik gupta you are right kt becomes milky and it will gain co2 but by detoxification of o2 it will lose parts of treat in basic form and co2 is liberated. Faltu bakwas mat kar It becomes milky and CO2 is liberated If quick lime is added to water then the water becomes lime water |
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| 63755. |
Full form of Al2O3 |
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Answer» Alumina Aluminium oxide Aluminium plati stora 20 ascota oxygen |
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| 63756. |
Give the equation from where we can obtain formula of BAKING SODA |
| Answer» Na H CO³ + H+ions gives CO² + H²O +Sodium salt of acid. | |
| 63757. |
Name the two metals which are not corroded and found in free state?? |
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Answer» Gold and platanium Sometimes silver and copper are also found in free state Gold,silver,deca stom,platinum and postrate blot Gold Gold and platanium |
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| 63758. |
What is placenta and write the two functions of it?? |
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Answer» Placenta is in disc -shaped which connect with baby through umbilical cord. It provide nutrients to the baby and also help removing of wastage materials through its Mother\'s womb Covering of heart is known as placenta |
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| 63759. |
What is thalamus & hypothalamus |
| Answer» Endocrine glands | |
| 63760. |
What is mean by electrical resistivity of an material |
| Answer» Resistivity is the measure of a material’s ability to oppose the flow of current . Resistivity of a conductor is a property of the material of the conductor. Unit of resistivity is Ohm meter, Ω m . Resistivity of the material of the conductor changes with temperature. Resistivity of copper is 1.7 × 10 -8 Ω m at room temperature. There is nothing called resistivity of a circuit. | |
| 63761. |
Why salt dissolved in water but not in kerosin? |
| Answer» Sodium chloride is an ionic molecule. There exists electronegativity difference between Sodium and Chlorine, which gives polarity to the molecule. Thus sodium chloride is polar molecule. Generally polar molecules will soluble in polar solvents and insoluble in non-polar solvents. Non-polar molecules will soluble in non-polar solvents and insoluble in polar solvents. As sodium chloride is polar molecule it will be soluble in polar solvents like water. And insoluble in kerosene (as it is non-polar solvent). | |
| 63762. |
If planaria will cut vertically then it will regenerate or not? |
| Answer» Hmm | |
| 63763. |
Please someone tell the formation of CaCl2 ionic bond |
| Answer» Atomic number of calcium is 20.Electronic configuration of calcium: 2, 8, 8, 2Number of electrons in outermost orbit = 2Valence electron = 2Valence electrons of chlorine = 7Calcium loses two electrons in order to achieve stable electronic configuration. Each of the two chlorine atoms on the other hand gains one electron losing from calcium to get stability. By losing of two electrons calcium gets two positive charges over it. Each of the chlorine atoms gets one positive charge over it. | |
| 63764. |
Briefly explain hypothalamus and its functions |
| Answer» Controls the secretion of pituitary gland | |
| 63765. |
Why the total internal reflection takes place in rain drop and not in glass |
| Answer» The formation of a rainbow involves a series of physical phenomena - reflection, refraction, dispersion and total internal reflection. The occurence of each of these is due to the interaction of light with air and water and the boundaries between them. As light enters the raindrop, it is refracted (the path of the light is bent to a different angle), and some of the light is reflected by the internal, curved, mirror-like surface of the raindrop, and finally isrefracted back out the raindrop toward the observer. | |
| 63766. |
My quetion is please gave another note of ch 11 |
| Answer» | |
| 63767. |
Why are not adding water to concentrated acid? |
| Answer» Water should not be added directly to any concentrated acid because there may be a sudden change in temperature of the mixture formed and may cause unfortunate accidenys like burns on the skin.. Etc.. We can add concentrated acid in water very slowly by continuously moving yhe test tube and mixing the mixture. | |
| 63768. |
trace the movement of oxygenated blood in the body |
| Answer» The oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. This blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. Left ventricle pumps oxygenated blood to different parts of the body. | |
| 63769. |
Formula of Alum? (phitkari) |
| Answer» K2so4.al2(so4)3.24h2o | |
| 63770. |
Explain how the human body responds with adrenaline is secreted into the blood |
| Answer» Yes | |
| 63771. |
How esters are formed? |
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Answer» Ester is sweet smell substance which are formed by the reaction of alcohol + carboxylic -------- ester + water Esters are sweet smelling substance that is formed by the ethanic acid . It is also used in purfume for the sweet smel that come from it When we react alcohol +carboxylic acid ~ Ester + water Esters are sweet smelling substances which are formed by the reaction of carboxylic acid and an alcohol. |
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| 63772. |
Perstaltic moment |
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Answer» Perstaltic movement is a movement of osophagus Rhythmic movement in small intsetine which helps in movement of food |
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| 63773. |
Explain difference between bar magnet and solenoid |
| Answer» Bar magnet It can\'t demagnetised easily It\'s strength can\'t increase through increase the current It is permanent magnet Solenoid (electromagnet) It can magnitised and demagnetised easily It is temporary It\'s strength is increase by increasing the current | |
| 63774. |
Why ionic compound dissolve in water but covalent compound not |
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Answer» R u from chhattisgarh Hii |
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| 63775. |
Explain ocean thermal energy |
| Answer» \tThe surface of the ocean is at a higher temperature than the layers below. This is because of the sun\'s heat warms up the upper layers of the sea.\tThis temperature difference is exploited to generate energy\tA minimum temperature difference of 20 degrees C is needed between water at the surface and at a depth of about 2 km.\tThis requires Ocean Thermal Energy Conversion plants which converts ocean thermal energy to electricity.\tThe water at surface of the ocean which is at higher temperature vaporizes liquid ammonia.\tThe vapour ammonia now moves the turbine which generates electricity.\tThe vapour ammonia then, is condensed using the water at the bottom layers of the ocean. It now again becomes liquid ammonia. | |
| 63776. |
Give differences between short circuiting and overloading |
| Answer» short circuiting - The intraction or meeting of uninsulated live wire and neutral wire with each other .overloading- It is a situation in which more current pass through the circuit due to connection of many appliance in a single circuit | |
| 63777. |
Explain sea wave and tidal energy |
| Answer» Tides are a regular phenomenon. They can be predicted over months and years in advance. This is why the energy from this massive movement of water can be harnessed and converted into a usable form of energy. The energy obtained from the rise and fall of tides is called the tidal energy. | |
| 63778. |
What is an effect of nuclear energy |
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Answer» Harmful radiation is produced through rxn which affect the life of organism Answer please |
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| 63779. |
What is the chemial property of metal and non metal |
| Answer» Chemical properties of metal\tThe density of metals is usually high.\tMetals are malleable and ductile.\tMetals form an alloy with other metals or non – metals.\tSome metals react with air and corrode. For e.g. Iron.\tMetals are good conductors of heat and electricity. Lead is an exception.\tGenerally, metals are in a solid state at room temperature. Except for Mercury. Mercury is in a liquid state.\tMany metals produce metal oxide by burning in the oxygen of the air. Highly reactive metals react violently when they’re burnt in oxygen.\tMetals like sodium and potassium are stored in oil as they react with air in seconds. They’re highly reactive metals.\tLess reactive metals like gold, silver, platinum, etc do not tarnish easily. They stay shiny and lustrous.\tMetals produce metal oxide and hydrogen gas while reacting with water.\tSoluble metal oxides dissolve in water and create metal hydroxide.Chemical properties of Non metal\tNonmetals are poor conductors of heat and electricity. Graphite and Gas carbon are exceptions.\tUnlike metals, nonmetals aren’t malleable and ductile.\tNonmetals react more with metals than with nonmetals.\tUsually, nonmetals react with other nonmetals in high temperature.\tMost nonmetals do not react with air in room temperature.\tWhite phosphorus is the only nonmetal that reacts with air to form its oxide by burning.\tUsually, nonmetals do not react with water. Except for Chlorine, chlorine dissolves in water to form an acidic solution.\tNonmetals have a low density.\tThey do not form alloys. However, nonmetals like carbon, silicon and phosphorous.\tNonmetals exist in all states of matter at room temperature. | |
| 63780. |
What is cloar alkali process |
| Answer» Electrolysis of sodium chloride solution is called chloro alkali process | |
| 63781. |
How is co2 and o2 transparted in human beings |
| Answer» O2 is transported in human beings through the nostrils and then it goes into the lungs, as soon as o2 reaches to the alveolis, co2 gets sucked in through diffusion and this process continues... | |
| 63782. |
What is cyitoplasm |
| Answer» The cytoplasm is the jelly-like substance that fills the cell. It consists of up to water. It also contains dissolved nutrients and waste products. Its main function is to hold together the organelles which make up the cytoplasm. It also nourishes the cell by supplying it with salts and sugars and provides a medium for metabolic reactions to occur.\tThe cytoplasm provides mechanical support to the cell by exerting pressure against the cell\'s membrane which helps keep the shape of the cell. This pressure is known as turgor pressure.\tIt is the site of most cellular activities including metabolism, cell division and protein synthesis.\tThe cytoplasm contains ribosomes which assist in the synthesis of protein.\tThe cytoplasm acts a storage area for small carbohydrate, lipid and protein molecules.\tThe cytoplasm suspends and can transport organelles around the cell. | |
| 63783. |
How long are various non biodegradable sustances expected to last in our environment |
| Answer» It contains materials like Glass, plastics etc. which do not get decomposed by microorganisms or non-biodegradable material does not decompose naturally.eg: Plastic toys, Glass, Steel, Rubber (Synthetic), Fertilizers (Chemical compounds and stuff) etc...Average time to break down the materials:- Leather shoes: 25-40 years- Nylon fabric: 30 to 40 years- Plastic bags: 10-20 years- Styrofoam cup: 1-100 years- Aluminum soda can - 350 years-Cardboard milk cartons-5 years-Plastic containers- 50-80 years-Glass bottle -500 years-Plastic soda -450 years-Marine Debris states -1,000,000 years. | |
| 63784. |
What is the function of armature |
| Answer» Armature is the rotating part of a motor or a generator. In a motor the armature rotates when electricity is provided thus it converts electrical and magnetic energy into mechanical energy. | |
| 63785. |
What is the real theory of light ? |
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| 63786. |
chemcial reaction why |
| Answer» | |
| 63787. |
Will internal marks be added in class 10 board exam |
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Answer» Yes marks out of 20 that you will get will be added Yes |
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| 63788. |
If the magnification of mirror is +2/3. Which type of mirror is this and explain how?? |
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Answer» The mirror is a convex mirror as convex mirror always forms a virtual erect and diminished image of an object since magnification is less than 1 therefore the image formed will be diminished and we know that concave mirror produces virtual image in only one case and that is also enlarged one so the answer is convex mirror. Concave mirror |
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| 63789. |
Write down three basic charactisc of cell |
| Answer» The 3 basic character of cell that:1) All known living things are made up if 1 or more cells.Orgainsms made up of one cell are called unicellular.Organisms made up of more than one cell are called multicellular..2) The cell is the vasic structural and functional unit of all living things.3) All cells arise from pre existing cells by division.. | |
| 63790. |
What are alkalies? |
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Answer» The base which is soluble in water is knon as alkali In chemistry, an alkali is a base consisting of alkali metal or alkaline earth metal chemical element. Some authors also define an alkali as a base that dissolves in water. A solution of a soluble base has a pH greater than 7.0. The solution of bases are alkalies The bases which are disolvable in water are usually known as ALKALIS. |
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| 63791. |
Sign conventions fir conacve n vonex lens and mirrior |
| Answer» Sign convention in the case of concave mirror:\tSince, object is always placed in front of the mirror hence the sign of object is taken as negative.\tSince, the centre of curvature and focus lie in front of the concave mirror, so signs of radius of curvature and focal length are taken as negative in the case of concave mirror.\tWhen image is formed in front of the mirror, the distance of image is taken as – (negative) and when image is formed behind the mirror, the distance of image is taken as + (positive).\tHeight of image is taken as positive in the case of erect image and taken as negative in the case of inverted image.Sign convention in the case of a convex mirror:\tSince, object is always placed in front of the mirror hence the sign of object is taken as negative.\tSince, the centre of curvature and focus lies behind the convex mirror, so sign of radius of curvature and focal length are taken as + (positive) in the case of convex mirror.\tIn the case of convex mirror, image always formed behind the mirror, thus the distance of image is taken as positive.\tIn the case of a convex mirror, always an erect image is formed, thus the height of image is taken as positive. | |
| 63792. |
What is manetic effect pf current |
| Answer» An electric current flowing in a wire produces a magnetic field around it. | |
| 63793. |
Name and write chemical formula of the green coating form on metal |
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Answer» तामबे (copper )के बरतन Its formula is CuCO3.Cu(OH)2 NOT CUO When copper is left exposed to air, it\xa0forms\xa0a\xa0green\xa0coating .\xa0The\xa0green coating\xa0is Copper carbonate CuO . No its not CUO . ITS is copper carbonate Name is copper oxideChemical formula is CuO Copper R u asking the formula of basic copper carbonate which gets deposited on copper metals |
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| 63794. |
How many stages are there in dna copying |
| Answer» 3 stages | |
| 63795. |
Proper definition of nutrition ?? |
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Answer» Thank you ?? Nutrition is the process of intake of nutrients and utilization by an organism in various biological activities....... |
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| 63796. |
Name the device that helps to maintain a potential difference across a conductor. Explain how. |
| Answer» device is a "cell" | |
| 63797. |
What is ohm\'s law and law of heating effect |
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Answer» At constant temperatures potential diffrence across the ends of a conductor is directly propotional to the current flowing through it while the temperature and pressure remain constant When eloctron passes through the particles their is friction produce. We know that when friction is produce then the temperature get rise At constant temperature the current flow through a conductor is directly proportional to its potential difference |
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| 63798. |
Why is DNA called blue print of the life |
| Answer» Because it contains genes which carry important traits of the parents to the new child . | |
| 63799. |
Why in secondary rainbow have upper color is violet and lower color is red |
| Answer» The sequence for rainbow colors is always the same – red, orange, yellow, green, blue, indigo and violent – because different colors of light have different wavelengths. Red always appears first, forming the rainbow\'s outer arc, because it has the longest wavelength of around 650 nanometers. Because light bends at 42 degrees to produce this color, you can almost always see it in a rainbow, even if the other colors in the rainbow are not as obvious. | |
| 63800. |
Why is the DNA blue print of life? |
| Answer» | |