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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.
| 53051. |
What are neutralisation reaction? |
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Answer» It is a reaction between an acid and a base forming salt and water.NaOH+ HCl- NaCl+ H2O. The reactions in which an acid reacts with a base to form salt and water are known as neutrilisation reactions.For example, Hydrochloric acid +sodium hydroxide-------->Sodium Chloride + Water |
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| 53052. |
Preview autotrophic nutrition in Amoeba and human beings. |
| Answer» This question is not correct. Amoeba and human beings are heterotropic. The kind of nutrition of depend other organisms. | |
| 53053. |
Write the chemical equation for above reaction |
| Answer» Which reaction? | |
| 53054. |
Can any disease be caused in absence of aqueous humour and vitreous humour? |
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| 53055. |
Exercise 5.6 3rd question |
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| 53056. |
What is law of conservation of mass |
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Answer» Mass can neither be created nor be destroyed in a chemical reaction \'Law of conservation\' of mass states that mass can neither be created nor be destroyed in a chemical reaction. Mass nither be created nor be distroyed Mass can nighter be created nor can be destroyed in a chemical reaction\xa0 |
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| 53057. |
How can we maintain a potential difference across a conductor |
| Answer» By using battery or cell | |
| 53058. |
Meaning of lacetal |
| Answer» Priyanshu ,I think it\'s acetal not lacetal. An acetal is an organic molecule where two separate oxygen atoms are single bonded with a central carbon atom | |
| 53059. |
Draw magnetic field lines around a bar magnet? |
| Answer» magnatic field lines like a circle around magnet they are in curve in shape | |
| 53060. |
Structure of methyl and ethyl |
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| 53061. |
How many type of Chemical Reaction.? |
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Answer» Types of chemical reaction are. 1. Combination reaction- in which two or more substance combine together to form a new substance.C+O2-CO2. 2. Decomposition reaction- in which a substance is broken into two or more subatances.CO2-C+O2. 3. Displacement reaction- in which more reactive element displaces less reactive element.CuSO4+Zn-ZnSO4+Cu. 4. Double displacement reaction- in which ionic compounds are exchanged.AgNO3+NaCl-AgCl+ NaNO3. 5. Precipitation reaction - in which precipitates are formed.Ca(OH)2+CO2-CaCO3 +H2O. 6. Neutralisation reaction - reaction between an acid and base forming salt and water .NaOH+HCl- NaCl+H2O. 7. Exothermic reaction- in which heat is given out.C+O2-CO2+heat. 8. Endothermic reaction- in which heat is absorbed.C+H2O+heat-CO+H2. Five types of chemical reactions are there 1 combination2 decomposition 3 displacement4 double displacement 5 oxidation and reduction |
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| 53062. |
What is cross section area ? |
| Answer» Area of wire | |
| 53063. |
What are the advantages of bio-gas over traditional fuels |
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| 53064. |
What is rusting of iron? |
| Answer» Rust is an iron oxide, a usually red oxide formed by the redox reaction of iron and oxygen in the presence of water or air moisture. Several forms of rust are distinguishable both visually and by spectroscopy, and form under different circumstances. | |
| 53065. |
Pepsin and trpsin are same work digest protien but how they are defferent |
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Answer» Pepsin breakdown protein in stomach in acidic medium and trypsin breakdown protein in small intestine in alkaline medium. Pepsin partially breakdown protein whereas protein is completely broken down by trypsin Pepsin digest food slightly but trypsin digest food partially |
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| 53066. |
What is the working of an electric bulb and fuse wire |
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| 53067. |
What are all the uses of veins in human heart? |
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Answer» 1. It carry deoxygenated blood from all parts of body to the heart.2. It carry deoxygenated blood execpt pulmonary vein which carry oxygenated bood. it transport deoxygenated blood to lungs from heart. Impure blood transport in lungs |
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| 53068. |
Is photosynthesis necessary for opening and closing of stomata? Explain giving reason. |
| Answer» Yes it is necessary for opening and closing of stomata because if a plant lose water through stomat (transpiration) below the point necessary for photosynthesis, then the stomata closes and prevent transpiration | |
| 53069. |
What is the relationship between resistant and resistivity ? |
| Answer» \tResistanceResistivity1. Resistance of a conductor is the the obstruction by the conductor in the flow of current through it. It is measured by the potential difference needed across the conductor to flow one ampere current through it.1. Resistivity the property of the conductor due to which it offers resistance to the flow of current throgh it. It is measured by the resistance offered by 1 m length of wire of that material of area of cross section 1 m2.2. The resistance of a conductor depends upon its material, temperature, length and area of cross section.2. Resistivity of the material depends only on its material and temperature.3. SI Unit of resistance is ohm3. SI unit of resistivity is ohm-metre.\t | |
| 53070. |
What is the relationship between resistant and resistivity |
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Answer» Resistance = resistivity * length of wire/area of cross section of wire. Please answer this question help me |
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| 53071. |
6 into 10 ki power 17 electrons cross through and area per minute what is the electric current |
| Answer» 1.6×10^-3 A | |
| 53072. |
Why is occasional coughing and sneezig is beneficial to us? |
| Answer» Because from these all the unwanted toxicants of our throat get out. | |
| 53073. |
How marking is done |
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| 53074. |
How to fill rechecking form |
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| 53075. |
What is magnetism |
| Answer» a physical phenomenon produced by the motion of electric charge, which results in attractive and repulsive forces between objects. | |
| 53076. |
Whati s defination of Electronic Confrigation |
| Answer» Separate the electron in an atom through the octate rule is termed as electronic configuration | |
| 53077. |
How autotrophs obtain carandioxide and nitrogen to make food? |
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Answer» It needs nitrogen because it is the major component of chlorophyll Plants take CO2 from atmosphere with the help of stomata and nitrogen from the soil with the help of some bacterias like Rizobium. It doesn\'t need nitrogen |
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| 53078. |
What is respiratory gases |
| Answer» The gases involve in the process of respiration are called respiratory gases. | |
| 53079. |
Difference between iodine and iodide |
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Answer» Iodine is atom iodide is an ion There valencies are different |
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| 53080. |
2. In which biochemical form the photosynthate moves in phloem tissue? |
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| 53081. |
Can a body in rest and in mottion at a time |
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Answer» Yes if a body is at rest with respect to a tree then it is at rest but it is in motion with respect to moon and other celestial object No because when we are in motion we cannot in rest and when we are in rest then it is obviously we are in motion No |
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| 53082. |
Twinkling of stars |
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| 53083. |
Do the board paper would contain the question from the NCERT book or some other too? |
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Answer» 95percent from book and 5 percent outside Nothing will be out of syllabus everything which will be in exam paper somehow we have understood in our school class or self study or in tution class only thing which you have to do is understand everything by own and apply so that you can catch it betterly and strongly after it you can face any exam. 70 pct from book 30 pct outside |
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| 53084. |
What is micells ? |
| Answer» an aggregate of molecules in a colloidal solution, such as those formed by detergents. | |
| 53085. |
What is quanta ? |
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| 53086. |
A wire.has resistence of 1o ohm if it is streched by 1/10of its length find new resistence |
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| 53087. |
All formulas in electricity |
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| 53088. |
diff. b/w diffusedand regular reflection |
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| 53089. |
How do we learn modern periodic table |
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Answer» Learn them by groups it\'ll be easier way Tricks No way |
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| 53090. |
mechanism of opening and closing of stomata? |
| Answer» Opening and closing of stomata is regulated by guard cell when water flows over them they become curve by the process of osmosis and pores of stomata get opened .Similarly when plant have to conserve water the guard cell become shrink and pores get closed. | |
| 53091. |
What is optium temperature |
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| 53092. |
What is the functional difference between the four chambers of heart |
| Answer» Right atrium and right ventricle transort deocyginated blood while left atrium and left ventricle carry ocygenated blood . Left atrium push blood into left ventricle and left ventricle push blood into aorta . Right atrium receive deoxygineted blood from all over the body and push it to right ventricle and right ventricle push blood to lungs for getting oxygenated | |
| 53093. |
Why nitric acid doesn\'t donate Hydronium ions? |
| Answer» Because , as soon as the ions r released, they reacts and form water.. | |
| 53094. |
How can we generate induced current in a circuit? |
| Answer» According to lenz law. | |
| 53095. |
Advisor or all in one |
| Answer» Yep thats a good bood to prepare just before exam s | |
| 53096. |
What is seive plate |
| Answer» A sieve plate is a perforated wall between the sieve elements in vascular plants. They are the outer end wall of a sieve-tube element, and contain many pores through which nutrients are transported. | |
| 53097. |
Which is the best book for science |
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Answer» Ncert is the best best book.... All books are best but study from ncert as exam will be from it Ncert and Schand Every book is best it depends upon you how you are reading????? Dinesh NCERT Lakhmeer singh is best book . Isme chapters detail m h yahi use kro S chand Dinesh |
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| 53098. |
Extra questions of 10 chapter 12 elrtricity |
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| 53099. |
Where is blood absorbs oxygen in our body |
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Answer» from alveoli By alveoli diffusion of gas take place and oxygen is absorbed by blood |
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| 53100. |
Why female are better in colour differenciation than males? |
| Answer» This is a question from the chapter human eye and the colourful world | |