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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.
| 62001. |
H2S +O2 GIVES H2O+SO2BALANCE THIS EQUATION |
| Answer» 2H2S+ 3O2=2H2O+2SO2 | |
| 62002. |
Balance Co2+H2>CH3OH |
| Answer» i think your question contains some defect please correct it first | |
| 62003. |
Define effective nuclear charge |
| Answer» The effective nuclear charge is the net charge an electron experiences in an atom with multiple electrons.Higher energy electrons can have other lower energy electrons between the electron and the nucleus, effectively lowering the positive charge experienced by the high energy electron.Examples: A 2s lithium electron can have 2 1s electrons between itself and the lithium nucleus. Measurements indicate the effective nuclear charge experienced by a 2s lithium electron is 0.43 times the charge of the lithium nucleus. | |
| 62004. |
What is electrostatic force ??????? |
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Answer» It is a force of attraction and repulsion. a force which is due to the movement of charges |
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| 62005. |
What is the finction of plastids ? |
| Answer» Function of Plastids:1) Chloroplasts trap solar energy and utilized it to manufacture food for the plant.2) Chromoplast impart various colour of flower to attract insect for pollination.3) They store food in form of carbohydrates, facts and proteins. | |
| 62006. |
The unit of specific resistance is.................... |
| Answer» Ohm meter | |
| 62007. |
Define 1 dioptre of power of lens |
| Answer» 1 dioptre means the focal length of lens is 1m | |
| 62008. |
How to make a model of nutrition in amoeba |
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Answer» the amobea make pseudopidia to get food from surrounding Endocytosis is the form of nutrition in ameba |
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| 62009. |
What is difference between magnification and linear magnification |
| Answer» The\xa0difference\xa0is that of measure;\xa0linear\xa0magnification\xa0is used when projecting an image on a screen and\xa0angular\xa0when viewing through an eyepiece. Linear\xa0Magnification\xa0is the ratio of the projected image size (measured with a ruler) over the actual size. Angular\xa0magnification\xa0is the ratio of the tangent of the angle subtended at the focal point of the eyepiece over the angle subtended at the focal point of the objective.\xa0Linear\xa0is clear and easy - but you cannot do a\xa0linear\xa0calcuation for a\xa0magnification\xa0system with an eyepiece as there is no screen so we use the ratio of the angles (or their tan) instead as this can be observed. If something without\xa0magnification\xa0covers 1 degree - with 5x\xa0Angular\xa0magnification\xa0it will appear to cover ~5 degrees (at low mag and angles you can almost ignore the tangent). | |
| 62010. |
How to make a water heater suggest me the model and the process? |
| Answer» | |
| 62011. |
Send me solutio of all activities as per given in ncert ch 12 |
| Answer» | |
| 62012. |
Sodium acts as an oxidizing agent while chlorine acts as a reducing agent in 2Na + Cl2= 2NaCl |
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Answer» Electron losing species is called reducing agent so sodium is reducing agent.electron accepting species is called oxidizing agent so chlorine is an oxidizing agent S. According to electronic concept of oxidation and reduction, oxidation is the process in which an atom or ion loses one or more electrons and reduction is the process in which an atom or ion gains one or more electrons. In the above reaction sodium loses electron and chlorine gains electron, |
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| 62013. |
Define alkali with an example |
| Answer» Water soluble bases are called alkalis. All alkalis are bases. But all bases are not alkalis. Example for alkalis sodium hydroxide potassium hydroxide | |
| 62014. |
What does the electric circuit means |
| Answer» a continuous and closed path of electric current is called electric circuit. | |
| 62015. |
Why are the walls of ventricles are thicker than Walls of atrium?????? |
| Answer» Because they have to pump blood to parts of the body | |
| 62016. |
Hormons in plants and explain it |
| Answer» Plant hormon (also know as phytohormon) are chemical that requlate plant growth. In the united kingdom, there are termed plant growth substance.... They effect which tissue grow up ward and which grow downward, leaf formation and stem growth development and ripening plant longitude and even plant death | |
| 62017. |
Draw a labelled diagram of human excretory system |
| Answer» Aade diagram jhandu banavega | |
| 62018. |
why unbalenced equation is known as skeletal equation????? |
| Answer» Because like a skeletal has no importance similarly in chemical equation unbalanced equation does not have any importance. | |
| 62019. |
What is the meaning of radox reaction |
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Answer» Reaction in which addition of oxygen or removal of hydrogen and addition of hydrogen and removal of oxygen takes place simultaneously is called redox reaction Such reaction in which one reactant get oxididised and the other gets reduced are called oxidation - reduction or redox reactions Redox is a type of reaction in which one substance is oxidized and another one is reduced . And REDOX means RED=reduced. And. OX= oxidized. Reaction in which both oxidation and reduction takes place |
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| 62020. |
Prooerties of chlorine |
| Answer» | |
| 62021. |
Can you please tell that which reference book is best for class 10 CBSE for 2019 board exam |
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Answer» It\'s ncert It is only for science and social science Evergreen self-study For maths ncert exemplar and r so agrawal |
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| 62022. |
Can a combination reaction be a redox reaction. |
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Answer» Of course Yes Yws |
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| 62023. |
What were tha limitation of newlands law of octaves |
| Answer» | |
| 62024. |
What is an electric fuse. |
| Answer» | |
| 62025. |
Mycbseguide.com, please provide so many numericles in physiccs gor board exam practice. |
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Answer» When it will be provided, in 2020??? S Chand numerical. Ok we will |
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| 62026. |
i want help from physics |
| Answer» | |
| 62027. |
Why should a magnisium ribbon be cleaned before burning in air |
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Answer» By rubbing it with sand paper which removes the oxide layer of magnesium Because the oxyen is present on it so it can take more time to burn but if we clean with sand paper before burning Becaz it gets reacted with oxygen present in the air and becomes magnesium oxide Magnesium is very reactive element. When stored , it react with oxygen and a layer of magnesium oxide on its surface and protect magnesium from further reaction with oxygen. Thus magnesium ribbon is cleaned before burning in air to remove this layer. |
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| 62028. |
What is the diagram of animal and plant cell |
| Answer» You have already studied it in class 9 | |
| 62029. |
What is the meaning of ecosystem |
| Answer» Eco system is a living organismlike plant and animal and micro organism and non living thing like soil ,water ,air both are interconnectec directly and indirectly | |
| 62030. |
List the 5 uses of concave and convex lens. |
| Answer» | |
| 62031. |
Cell that surround a stomatal pore? |
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Answer» Guard cell It\'s answer is guard cell....... Guard cell Gaurd cell. |
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| 62032. |
The cell organelle where photosynthesis occurs |
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Answer» Plastids called chloroplasts present in leaf Mesophyll cell Chloroplasts Photosynthesis occurs in chloroplast.... Chloroplasts |
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| 62033. |
A silver wareis kept in a solution of CUSO four(aq). what change do u except |
| Answer» | |
| 62034. |
An example of double decomposition reaction |
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Answer» Many double decomposition reactions are precipitation reactions.AgNO3(aq)+NaCl(aq)→AgCl(s)+NaNO3(aq)Others are acid-base neutralization reactions.HCl(aq)+NaOH(aq)→NaCl(aq)+HOH(l) CaCO3 is not the example of double displacement reaction AgNO3+ NaCl~AgCl+NaNo3 CaCo3(s) ~ CaO + Co2 |
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| 62035. |
What are juices secreted by the stomach |
| Answer» Juices secreted by stomach are:- hcl acid,trypsin,mucus secreted in gastric gland | |
| 62036. |
How much energy is given to each coulomb of charge passing through 6V battery |
| Answer» V=6v Q=1cW=?V=w/q6=w/16×1=wW=6j | |
| 62037. |
Name the various types of chemical reaction |
| Answer» Combination reaction Decomposition reaction Displacement reaction Double displacement reaction Redox reaction | |
| 62038. |
Two electric fan of rating 80W each for 12 hours each day |
| Answer» Q. Is not complete | |
| 62039. |
State John\'s law .weight necessary condition for its validity |
| Answer» | |
| 62040. |
Is plant consumer of oxygen?give anawer with respect to ls. Our environment |
| Answer» As we know plant do aerobic respiration and aerobic respiration will happened in the presence of oxygen . Thus plant consume oxygen but in very low amount . In our environment trees like peepal uses oxygen in night as well | |
| 62041. |
Is plant consumer and producer of oxygen |
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Answer» Yes it perform both activity.It consume oxygen during respiration and produce oxygen during photosynthesis Yes it is both consumer as well as producer of oxygen it is consumer during respiration while producer during photosynthesis |
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| 62042. |
What do you mean by workdone |
| Answer» Work done is product of the force and the distance over which the force is applied. Work is done when a force is applied to an object and the object is moved through a distance. For example, when you lift a load you are applying a force over a distance so you are doing work. | |
| 62043. |
Give any 5 example of displacement reaction? |
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Answer» Mg + 2hcl- mgcl2+ h2NAOH + HCL - nacl+ h2oCuo+zn-zno+cu Cu + H2so4- cuso4 + h2 |
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| 62044. |
What is break down of glucose by various pathways |
| Answer» In the presence of oxygen Glucose - pyruvate+ energy in the presence of oxygen co2 +6 water + 36 ATP In the absence of oxygen Glucose - pyruvate + energyin the absence of oxygen in yeast 2 ethanol+ 2co2 +2ATPIn lack of oxygen in muscels cellsGlucose - pyruvate + energy - 2lactic acid + 2ATP | |
| 62045. |
How does the respiration take place in grasshopper |
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Answer» Can you clearify ur answer Pulmonary respiration |
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| 62046. |
Name one parasitic plant |
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Answer» Cuscuta Rafflesia arnoldii is a parasitic plant. |
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| 62047. |
what is the difference between methanoic and formic acid? |
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Answer» Both are same Both are same Formic acid (systematically called methanoic acid) is the simplest carboxylic acid. It is an important intermediate in chemical synthesis and occurs naturally, most famously in the venom of bee and ant stings. The principal use of formic acid is as a preservative and antibacterial agent in livestock feed. |
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| 62048. |
What is the meaning (aq) |
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Answer» Aqueous Aqueous solution Aqueous (aq) it is denoted to identify liquid/ dissolved with water It means aqumous/water. Aq= aqueous The (aq) sign stands for aqueous in water and means the compound is dissolved in water. |
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| 62049. |
What makes stainless steel not rust? |
| Answer» Prevention are add a coat of paint in it.. | |
| 62050. |
In 1 minute how many times we breathing |
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Answer» 20 to 40 times 72times 12 to 20 times. 16 to 18 times |
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