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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.
| 66851. |
Out of zinc and copper vessel one will be more suitable to store 1M HCl and why ?? |
| Answer» Cu is good for storing HCl because Cu is less reactive and Zn and when metal react with acid is form salt and hydrogen | |
| 66852. |
Ammonia is a base but does not contain a hydroxyl group. Why? |
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Answer» Thank you As It is a weak base it does not have hydroxyl group in its formula but it gives OH- Ions when reacted with ? water Anyone who knows the answer of this question |
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| 66853. |
General Formula of Mr. Ketone? |
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Answer» C double bond O; C=O Ur, most welcome ........☺ Gives some Respect to Ketone also... CnH2nO General formula ketone ka, ye hai CH₃—C(=O)—CH₃ But, Mr. Ketone ka pata nhi.......?? |
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| 66854. |
1mA=?amphere |
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Answer» 10^-3 1ma =1/1000 ampere |
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| 66855. |
Write. Sign convention of both mirror and lens |
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Answer» Object distance(both)=(-),Image distance(concave if image is left side)=(-),Image distance(conave image left side)=(+),Image distance(convex)=(+),focal length (concave)=(+),Focal length (convex)=(-),Hieght of object =(+) in both mirror,Hieght of image( when above the principal axis)=(+) in both,Height of image (when below the principal axis)=(-), in both,Virtual and erect =(+)In both,Real and inverted=(-) in both, .......................it is in the case of mirror but lense ka koi idea nahi h ye bhi ho sakta h same Sign convention for lenses:1. All distances are measured from optical centres.2. The distance in the direction of incident ray is taken +ve and oppsite to the direction if incident ray is taken -ve.3. The distance above principal axis is taken +ve and below the principal axis is taken -ve Sign convention for spherical mirror:1. All distances are measured from pole.2. The distances in the direction of incident ray is taken positive and opposite to the direction of incident ray is taken negative3. The distances above the principal axis is taken +ve and below the principal axis is taken -ve |
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| 66856. |
The site of exchange of material between the blood and Surrounding cells in humam being |
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Answer» Capillaries Capillaries Capillaries are the site of exchange of material between blood and surrounding cells |
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| 66857. |
Limitation of newland law of octaves |
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Answer» The property of every 8th element havjng similar properties were exhibited only till calcium His law was only applicable upto carbon and after that it started showing differences He put Cobalt and nickel that is two different elements in same slot Cobalt and nickel were placed far away from the elements which resembles their property i.e Iron and placed with the inert gases |
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| 66858. |
Two components of lymph |
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Answer» Lymph is a clear-to-white fluid made of: White blood cells, especially lymphocytes, the cells that attack bacteria in the blood. Fluid from the intestines called chyle, which contains proteins and fats Protein ,fats |
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| 66859. |
What is the mode of nutrition in fungi ? |
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Answer» Saprophytic Saprotrophic nutrition Fungi are heterotrophic: they rely solely on carbon obtained from other organisms for their metabolism and nutrition. Saprophytic |
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| 66860. |
Information source for making proteins in the cell |
| Answer» DNA and genes | |
| 66861. |
Why the blue crystals of copper sulphate changes to colorless on heating |
| Answer» Due to loss of water of crystalisation | |
| 66862. |
Explain nuclear chain reaction ? And nuclear fission |
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Answer» Nuclear fission is bombarding the heavy nucleus of some atoms like uranium, thorium by which radioactive waves along with 3 neutrons and barium and krypton are released And if these 3 neutroms hit other nucleus then then is called a chain reaction Inter baunding between carbon and other elements |
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| 66863. |
What is rectified spirit....? |
| Answer» a mixture of ethanol (95.6 per cent) and water produced as an azeotrope by distillation. | |
| 66864. |
एल्केन श्रेणी के गुण स वावयन क्यों नहीं दिखाते |
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Answer» श्रेणी ka meaning pata hai, groups, bt वावयन ka meaning nhi pata...... श्रेणी और वावयन मतलब। |
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| 66865. |
Define respiration briefly. |
| Answer» respiration is the movement of oxygen from the outside environment to the cells within tissues, and the transport of carbon dioxide in the opposite direction. | |
| 66866. |
Name a comman nutrient that is absorved in the small intestine and reabsorbed by khe kandly tubules |
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Answer» Glucose Amino acids |
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| 66867. |
Does fertilisation take place in asexual reproduction????? |
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Answer» But they are not steryle Noo .... |
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| 66868. |
Why abscisic acid called stress hormone |
| Answer» Because it inhibits growth means it stop plants to growth | |
| 66869. |
How can we balance the equation |
| Answer» By hit n trial method or mathematical method | |
| 66870. |
What is the function of testis in reproduction? |
| Answer» Functions of testis:\tMale gametes called spermatozoa are produced by the testis through the process of spermatogenesis.\tThe leydig cells of the seminiferous tubules of testis produces male *** hormone called testosterone. Testosterone in addition to the process of spermatogenesis also helps in the development of secondary sexual characteristics in males. | |
| 66871. |
Describe the way to preventing pregancy |
| Answer» 1)Barrier Method: The physical devices such as condom(male)and diaphragm(female-covering on ******)are used.\xa0They prevent the meeting of sperm and egg.2)Chemical Method: The female uses 2 types of pills-oral and ******.\xa0Oral pills are made of specific hormones which prevent release of egg into oviduct. Vaginal pills contain chemical which kill the sperm.3)Intra-uterine contraceptive device(IUCD)or copper-T :\xa0The use of IUCD is placed inside the uterus.It prevents the implantation of fertilised egg in uterus.4)Surgical method : In male a small portion of sperm duct is removed by operation and both the cut ends are tied property.This prevents sperm from coming out.(VESECTOMY) | |
| 66872. |
What changes occur during puberty? |
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Answer» Thanks for your answer • The onset of puberty is marked by physical changes.• Sweat glands become active and start producing more sweat.• Pimples or acne appear due to increased action of sebaceous glands or oil glands.• The *** organs grow and become functionally active. The testes start producing male gametes, called sperms. The ovaries grow and release one mature ovum in a periodic cycle of 28 days.• Puberty is marked with an increase in size of the ***** with respect to different ages in males. The development of breasts is observed in females.• Brain is very active and so will have a greater capacity to learn.• Puberty also results in mental and intellectual maturity. |
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| 66873. |
Whatvis reflex action |
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Answer» It is an automated spontaneous nerve mediated response. A sudden reaction for an external stimuli |
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| 66874. |
What is the principal of an electric motor. |
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Answer» It is based on the principal of ectromagnetic induction Electric motor is a device that converts electricity into mechanical energy.\xa0Working principle of electric motor: \xa0Electric motor works on the principle that when an insulated conductor coil is placed in a magnetic field and the current is passed through it, a force acts on the coil which rotates continuously. |
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| 66875. |
Explain the LPG |
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Answer» Liquefied petroleum gas or liquid petroleum gas, also referred to as simply propane or butane, are flammable mixtures of hydrocarbon gases used as fuel in heating appliances, cooking equipment, and vehicles. LPG is Liquid Petroleum Gas. It is a petroleum product used mainly for heating purposes.The gas is liquified through compression . That is why large quantity of it is able to store in one single cylinder. It is smokeless hence it doesn\'t produce air pollution.It is obtained through the fractional distillation of petroleum. It is a very neat and clean fuel. |
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| 66876. |
Define paternal and maternal chromosome? |
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Answer» 1.“Paternal” is something that pertains to a father whereas “maternal” would pertain to a mother.2.“Paternal bond” refers to the relationship between the father and his child while the “maternal bond” refers to the relationship between a mother and her child.3.Paternal chromosomes are heterogametic while maternal chromosomes are considered homogametic. • Paternal Chromosomes are the chromosomes from male.• Maternal Chromosomes are the chromosomes from female. |
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| 66877. |
Who is the father of genetic? |
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Answer» Gregor Mendel Mendel |
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| 66878. |
2.3 activity |
| Answer» | |
| 66879. |
Will diagram of heart or brain be asked in exams |
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Answer» Heart will be asked But brain does not matterJo kha rahe hai brain is importent Toa apna brain nikal ke laga lege ?? Nikita sharma, diagram of brain is easy in s chand\'s book you can try from s chand book of biology Can u tell me easy way to draw it Diagram of heart is very imp. Yes....it\'s important.... Yes |
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| 66880. |
What is the common name of baking soda |
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Answer» The chemical name of baking soda is sodium hydrogen carbonate. The formula of baking soda is NaHCO3. It is prepared by reaction of cold and concentrated solution of sodium chloride with ammonia and carbon dioxide. Common name of Baking soda is baking soda.......but if u are asking for its chemical name then I can tell you......it\'s sodium hydrogen carbonate.....NaHCO3 Sodium hydrogen carbonate |
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| 66881. |
please provide me chapter wise weightage of class 10 annual question paper. |
| Answer» It is provided in this app | |
| 66882. |
What is ozone layer? How it affects the environment |
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Answer» When O2 breaks down into O and O .then O2 combine with O and form O3 (OZONE) It protect environment from uv rays. Ozone layer is a form of oxygen. It\'s formula is O3. It protects us from harmful UV rays of sun which can cause skin cancer, cataract, etc. |
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| 66883. |
What is meant by geotropism |
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Answer» Movement of plant towards gravity Root system grows towards gravity The response of plant part to gravity is called geotropism |
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| 66884. |
Ethanol is liquid at room temperature. Discuss its physical and chemical properties |
| Answer» C2H5OH | |
| 66885. |
Science practicals are also available in this app |
| Answer» | |
| 66886. |
Name any three components of neuron and its function |
| Answer» Dendrites _ acquires information Cell body _ information travels as an electric impulseAxon _ transfer information to another neuron | |
| 66887. |
Mention the international efforts of ozone depletion |
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Answer» In Canada Montreal protocol was signed to stop the cfcs production in other countries so as to stop the Ozone Layer depleting substances and in 1987 the United Nations environment programme succeeded in forging agreement to freeze cfcs production Act 1986 levels. IN 1987, the united nations environment programme (unep) succeeded in forging an agreement to freeze CFCproduction at 1986 levels.ALL CLEAR..!!! The international efforts are as follows:- In 1985, the Vienna Convention for the Protection of the Ozone Layer formalized international cooperation on this issue. In 1992, the Parties to the Protocol decided to alter the terms of the 1987 agreement to end production of halons by 1994 and CFCs by 1996 in developed countries. |
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| 66888. |
Please gave me the blue print of science. .. it can help a lot for the annual exams ... plz ?????? |
| Answer» Which chapter | |
| 66889. |
What drawback of mendleev periodic table????????? ???? |
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Answer» 1.In his periodic table hydrogen was missing 2.isotopes were also missing3.he placed heavier metals before lighter one 4.uncertainity in atomic masses First he does not define the position of hydrogen second he does not define the isotope |
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| 66890. |
What reaction take place during digestion |
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Answer» Endothermic reaction in decomposition reaction Decomposition reaction Decomposition reaction. |
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| 66891. |
What is alkali and alkaline |
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Answer» Alkali is a strong base with ph 7 and are soapy in nature. Alkali is a base that dissolves in water they are soapy in touch,bitter and corrosive. |
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| 66892. |
How the alveoli design maximise the exchange of gases |
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Answer» Alveoli are present at the terminal of bronchioles. They are balloon shaped structures which increase the surface area for the exchange of gases and are richly supplied with blood vessels. Thank you?? Alveoli is a balloon like structure. The alveoli provide a surface for the exchange of gases can take place .The wall of the alveoli contain extensive network of blood capillaries and have thin wall which maximise the exchange of gases. |
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| 66893. |
What are the substuition Reaction explain with example |
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Answer» Substitution reaction is a type of chemical reaction in which an atom or a functional group is replaced by another atom or functional group.E.g. CH4 + Cl2 -> CH3Cl + HCl Ch4 +cl2 ____ ch2cl+cl2 |
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| 66894. |
What do you mean by resistivity |
| Answer» Resistivity is a resistance of a substance which have length is 1 metre and their area is 1 m square | |
| 66895. |
What is smeel law |
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Answer» According to snell law the ratio of sin I and sin a is remains same in given set The ratio of sin of angle of incidence to the sin of angle of refraction is a constant for the light of a given colour and for the given pair of media.This is called snell\'s law of refraction. Sin i/Sin r = constant |
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| 66896. |
Any body has over thier model exam RSPL/2 |
| Answer» | |
| 66897. |
What is lateral invension? |
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Answer» It is the phenomenon of left-right inversion of the image. If we see our image in mirror then our right side appears to be left and left appears to be right When the image of an object is erect but is inverted in the lateral side it is called lateral inversion ie the left side comes to the right and the right comes to the left............. |
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| 66898. |
Science supplementary papers |
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| 66899. |
Define Detergents |
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Answer» Detergent is a mixture of ammonium or sulphonate salts of long chain carboxylic acid which contain cleanshing property in water. Detergents is a substance that can be used to remove permanent hardness of water like sulphates and chlorides of various salts like magnesium sulphate. Detergent is a substance that is used for cleaning. Detergent is similar to soap, but it is stronger and dissolves more completely in water. Detergents are special, powerful cleansers that can break up dirt, oils, and grease in clothing. |
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| 66900. |
Whats the most important topic in chapter 12 |
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Answer» Ohm\'s law, VI graph, heating effect & joules law of heating Numericals and definitions?? All the numericals are important of every topic |
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