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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.
| 66751. |
Uses of AgCl2 |
| Answer» Uses-many of the application of agcl are based on its light sensitive convention to metallic silver, such as preparation of photographic flims and photochromic lenses. It is an important reference used in electrode used in cells ,and is also used to prepare pottery glazes and stained glass. | |
| 66752. |
What are main questions in chapter 1 chemical reactions? |
| Answer» Go through all the activities .. | |
| 66753. |
How to find ph values |
| Answer» pH is the measure of power of Hydrogen in an aqueous solution having the values from 0 to 14. To find the pH of an aqueous solution first you need to\xa0know the concentration of the hydronium ion in moles per liter (molarity). The\xa0pH\xa0is then calculated using the expression:pH\xa0= - log [H3O+]. | |
| 66754. |
Difference between homologous and the analogous? |
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Answer» homologous- having similar structure but perform different function.Analogous-having dissimilar structure but perform same function. Thanks ? *Homologous Organs :-Homologous\xa0organs are those , with same body structure .The functions performed by them is different.Their appearances are different.They have a common ancestor.Eg : Forelimbs of humans, reptiles ( they have same structure, and different functions)*Analogous Organs :-Analogous organs are those , with different body structure .The functions performed by them is similar (same).Their appearances are also similar.They do not have a common ancestorEg : Wings of a bat ; and the wings of a butterfly ( same function,different structure) |
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| 66755. |
Practical based question on respiration |
| Answer» U cn get it frm practical book | |
| 66756. |
Photosenthesia |
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Answer» Chrophyull Photosynthesis is the process used by plants, algae and certain bacteria to harness energy from sunlight and turn it into chemical energy. It\'s photosynthesis I think |
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| 66757. |
What is the concept of electrilysis process |
| Answer» Electrolysis is the process by which ionic substances are decomposed into simpler substances when an electric current is passed through them. The process is carried out in an electrolytic cell, an apparatus consisting of positive and negative electrodes held apart and dipped into a solution containing positively and negatively charged ions. | |
| 66758. |
Why a solar cooker painted black from outside |
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Answer» Black colour is a good conductor of heat so it helps in cooking faster Black colour absorbs the most sunlight and reflects back the least amount of it. Hence, solar cookers are painted black from outside. Black colour can absorb heat so solar cooker can absorb heat easily |
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| 66759. |
Is there any ion inch3cooh?? |
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Answer» When ch3cooh is in water it dissociates partially to give out----- ch3coo(-) + H(+) I don\'t think so |
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| 66760. |
How hypermetropia can be corrected, show with the help of the diagram |
| Answer» Hypermetropia or farsightedness as it is known, can be corrected by using a converging (convex) lens of suitable power. The defect leads to the image of the close by objects being formed behind the retina of the eye. The covex lens focuses the rays of light from a close by\xa0object\xa0such that they fall on the retina.I don\'t know how to insert a picture, otherwise I\'d have attached the ray diagram. | |
| 66761. |
On which basis a strong or aweek acid is saperated?? |
| Answer» Concentration of H+ | |
| 66762. |
In previous time how the Mattel reaarrang |
| Answer» Didn\'t able to understand ur question | |
| 66763. |
Silk is misnomer explain |
| Answer» | |
| 66764. |
Name the largest cell in human body |
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Answer» Neuron Female ovum Cells are of different shapes and sizes. Different shapes and sizes are due to different functions performed by different cells. The smallest cell is Mycoplasma (PPLO-Pleuro pneumonia like organims). It is about 10 micrometer in size. The largest cells is an egg cell of ostrich. The longest cell is the nerve cell. The largest cell in the human body is female ovum. Smallest cell in the human body is male gametes, that is, sperm. |
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| 66765. |
Water for all |
| Answer» What is this....write complete ques | |
| 66766. |
activity to show micells formation |
| Answer» Micelle are the spherical aggregate of saop molecules in colloidal solution.The hydrophobic part is directed inward whereas hydrophillic part is directed outward.due to repulsion between negative ions they doesn\'t meet. | |
| 66767. |
define neutralization reaction |
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Answer» when an acid react with base to produce salt and water.. is called neutralisation reaction.. ? When acid react with base it produced salt and water it is known as neutralization reaction You are right... When acid react with base it will neutralise and give salt and water is called neutralization When an acid react with base to give salt and water then the reaction occurs is a neutralisation reaction |
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| 66768. |
Suggest some environmental protection measure in school ? |
| Answer» | |
| 66769. |
What is the difference between voluntry action and reflex action |
| Answer» Reflex action are sudden and unconscoius automatic response to some change in environment .It is controlled by spinal cord like watering in mouth and voluntry action are in our control and are according to our will like walking ,eating etc. | |
| 66770. |
What is cupric oxide |
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Answer» Cupric Oxide is an oxide of copper .It is formed when copper reacts with oxygen . Cu2o |
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| 66771. |
Guys....wanna motivation.....me so scared....?? |
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Answer» Watch the motivation video of sandeep maheswari Bt motivation is prirotic.......tends u to do whatever the thing ur most scared of...?? Please do not waste time to stay motivated to show that you are scary it is your mistake so i recommend you think about those children who are known to be illiterate one ( aur kehte hai khushi ko jaya kiya jaye par gam ko nahi) Motivation for what....? |
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| 66772. |
Why do fire flies glow at night???? |
| Answer» Due to oxidation of protein lucifarin | |
| 66773. |
Which is more reactive in Francium or Potassium and why? |
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Answer» But according to the modern periodic table when we come down in group 1 the reactivity increases and Fr is present at last so Fr should be more reactive but K is more reactive . Why? Potassium is more reactive because it is the first group of the member Potassium Francium is more reactive than Pottasium . Potassium |
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| 66774. |
Ecplain the term blind spot with refeeence to eye |
| Answer» The place where optic nerve and retina meets and no light -sensitive cells are present here is blind spot | |
| 66775. |
Cells which produce electric charges by coming in light |
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Answer» Photons Solar cells. |
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| 66776. |
Define is reproduction?Why is it important? |
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Answer» Reproduction is the process by which a living organism is able to produce new individuals of its own kind. Unlike other life processes such as nutrition, respiration etc. It is not essential to maintain the life of an indivudual organism. But it is important for the existence and continuity of the species. Reproduction is important for the survival of all living things. Without a mechanism for reproduction, life would come to an end. |
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| 66777. |
Growth harmone |
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Answer» Pituitary gland secrets growth harmone In humans , Pituitary gland secrets growth hormone .In plants , growth hormone is Auxin. Secreated by anterior pitutary helps to regulate body growth |
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| 66778. |
Mirage |
| Answer» A mirage is a naturally occurring optical phenomenon in which light rays bend to produce a displaced image of distant objects or the sky. | |
| 66779. |
Which nutrient is absorbed by our small intestine |
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Answer» I think nutrients m lipids hoskta h...to iska ans lipids ho haina Nutrients m kya hoskta h....small intestine m viilli hota h vo to hlp krta h food ko absorb krne m Hmm amino acid protein hojayega .... Note amino acid bro i asked for nutrient Glucose/Amino acid Glucose |
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| 66780. |
Write about induce current... |
| Answer» Jo bhi iss question ka answer de please short way mai de | |
| 66781. |
Which of the following hydrocarbons will give substitution reaction and why? |
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Answer» No option Complete your question! |
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| 66782. |
What is meant by heating effect of current |
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Answer» The phenomenon of production of heat in a resistor by the flow of an electric current through its called heating effect of electric current. When current flows through a conductor, heat energy is generated in the conductor. The heating effect of an electric current depends on three factors: The resistance, R of the conductor. A higher resistance produces more heat....The amount of current, I....The time, t for which current flows. |
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| 66783. |
Write characteristics of ionic compounds..?? |
| Answer» Some important characteristics of ionic compounds are as follows.1. Ionic compounds are hard and rigid due to strong forces of attraction between the oppositely charged ions.2. Ionic compounds have high melting and boiling points, again due to strong forces of attraction between the ions.3. Ionic compounds dissolve easily in water. | |
| 66784. |
What are covalent bonds..?? |
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Answer» Whenever a non metal combines with another non metal , sharing of electrons takes place between their atoms and a covalent bond is formed. The bond which is formed by the mutual sharing of electrons of two different atoms is called covalent bond. For example : oxygen molecule, methane. |
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| 66785. |
Why is tydel energy not likely to be a potential source of energy |
| Answer» The tidal energy is not likely to be a potential source of energy in future due to the following limitations:1. Less availability of suitable sites for building tidal barrages around the world.2. The rise and fall of sea water during high and low tides is not enough to generate electricity on a large scale.3. Start up costs to build a tidal energy plant is high. | |
| 66786. |
What is the colour produced on universal indicator by dilute hydrochloric acid |
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Answer» Ref Red colour |
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| 66787. |
Optical density what |
| Answer» | |
| 66788. |
Formation of ester with reactions & uses |
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Answer» Esters are used in making perfumes and some sort of chocolates Acetic acid +ethanol - Ester+ waterIts use is for sweet smelling |
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| 66789. |
Write about froth flotation..?? |
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Answer» Froth flotation ---- it is specially meant for sulphide ores. Firstly water is qdded to ore then pine oil or eucalyptus oil is added and mixed they evaporate after some time as they are volatile. Excess of air is passed through it when it is boiled. The ore which is oil soluble mixes with the ore and forms froth or better called foam. This froth then comes to surface which van be then removed and the gangue remains below.........hope this helps you..... This method is employed for the concentration of sulphide ores. The finely powdered ore is added to water in a tank containing pine oil. The mixture is agitated by blowing a blast of air. The ore particle preferentially wetted by oil come to the surface with froth while impurities which are wetted with water become heavier and settle at the bottom. The oil froth containing mineral particles which floats on froth containing mineral particles which floats on the surface of the water can be skimmed off easily.Ex : The concentration of copper pyrites, galena are done by this method. Here concentration means removal of gangue from the ore and froth flotation is mainly used for sulphide ores .....ab clear hai?? Thanks but can you explain it more Froth flotation is used for concentration process of sulphide ores.... |
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| 66790. |
Explain giving chemical equation any two uses of chemical decomposition reaction in industry |
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Answer» Sry bt a small correction it is not fe2so4-- fe2+so4The right eqn is 2feso4--- fe2O3+so2+so3 Decomposition reaction is used in black and white photography chemical reaction...... chemical reaction: 2AgBr= 2Ag +Br2 Fe2SO4=Fe2 + SO4 |
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| 66791. |
Function of capilliaries |
| Answer» Capillaries deliver nutrients and oxygen to tissues and remove the byproducts of cellular reactions, such as carbon dioxide and water. With the exception of the lungs, where the opposite is true, capillaries bring oxygenated blood, blood-carrying oxygen, to organs and carry away deoxygenated blood, blood with the oxygen removed. | |
| 66792. |
what is the function of Petal and how it protect the flower |
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Answer» Petals are sometimes very colourful and also scented so as to attract insects or any other creatures towards them so that these creatures become the medium for the transfer of pollen grains from anther to stigma which will result in fertilisation. Petals: This layer lies just above the sepal layer....... They are often bright in colour as their main function is to attract pollinators such as insects, butterflies etc to the flower..... The petals are collectively known as the corolla...... |
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| 66793. |
Differentiate a real image from a virtual image giving two point of difference |
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Answer» \tReal ImageVirtual image1. The image can be captured on screen .\xa01.The image cannot be captured on screen .2.The image is always inverted\xa02.The image is always erict.3. Light ray actually meet to form a real image.3.Light ray do not meet to form a Virtual image\xa0\t Real image is inverted in nature .....where as virtual image is erect in nature.... real image can be obtained on a screen ...but virtual cannot be obtained on a screen....... |
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| 66794. |
Explain the working of electric motor.. Plzz |
| Answer» Electric motor is a electric device which converts electrical energy into mechanical energy.Electric motor works on the principal in which when a soft iron core coil is placed in magnetic field,when current is flow through the coil then it experience equal and opposite force on it which makes it rotating continuesly.Direction of force is determined by fleming\'s left hand rule.My Blog www.baamaasbeta.blogspot.comREAD MY BLOG PLZZ..? | |
| 66795. |
Recombination of glass prism |
| Answer» Take 2 glass prism p1and p2 and place the second prism p2 upside down with respect to the first prism p1 . Then allow a beam of white light to fall on the first prism p1. The prism split the white light in 7 colours .when these colours fall on the prism, it recombines all the colours into whute light and we observed a patch of white light on the screen. | |
| 66796. |
Explain cleansiny reaction of soap. |
| Answer» \tWhen soap is dissolved in water, its hydrophobic ends attach themselves to dirt and remove it from the cloth.\tFirst, the molecules of soap arrange themselves in micelle formation and trap the dirt at the centre of the cluster.\tThese micelles remain suspended in water like particles in a colloidal solution.\tThe various micelles present in water do not come together to form a precipitate as each micelle repels the other because of the ion-ion repulsion.\tThus, the dust particles remain trapped in micelles (which remain suspended) and are easily rinsed away with water.\t\xa0Hence, soap micelles remove dirt by dissolving it in water. | |
| 66797. |
What do you understand by tje yerm substitution reaction.write the chemical reaction involved in it. |
| Answer» | |
| 66798. |
Write down structure formula of ethyl methyl ketone.write its IUPAIC name. |
| Answer» | |
| 66799. |
Write common name of methanol and ethanol.write its structure |
| Answer» common name of ethanol is ethyl alcohol nd methanol is methyl alcohol | |
| 66800. |
Formation of esters . Define reaction . |
| Answer» When ethanol is added to ethanoic acid it forms ester or ethyl ethanowte and water this is known as esterification | |