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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.
| 10101. |
What is the electric current |
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Answer» Electric current can also be defined as the amount of charge flowing through a unit cross section in per second. An electric current is the rate of flow of electric charge |
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| 10102. |
Preparation of POP |
| Answer» Plaster of paris is calcium sulphate hemihydrates. Its chemical formula is: CaSO4. ½H2O.It is prepared by heating gypsum to a temperature of 100°C in a kiln; it loses ¾ of its water of crystallisation and forms plaster of paris.\xa0Uses of Plaster of paris:(i) It is used as a fire proofing material.(ii) It is used in hospitals for setting fractured bones in the right position to ensure correct healing.Gypsum is calcium sulphate dihydrate. When gypsum is heated to a temperature of 100 °C, it loses ¾ of its water of crystallisation and forms plaster of paris. | |
| 10103. |
What do you mean by metabolic process? |
| Answer» the metabolic processes whereby certain organisms obtain energy from organic molecules; processes that take place in the cells and tissues during which energy is released and carbon dioxide is produced and absorbed by the blood to be transported to the lungs.Thanks . This is aayush lunia you can ask more question if you need.. best of luck . | |
| 10104. |
Why the chemical properties are same of all elements in same group ? |
| Answer» Elements present in the same group show the same chemical properties because they\xa0have\xa0the same number of valence electrons are present in the same group. So, all the elements in a group have similar electronic configuration.\xa0 | |
| 10105. |
What types of questions generally come in class10 acid base and salt? |
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| 10106. |
What happens to blue litmus when introduced to a solution of ferric chloride |
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Answer» Sorry,it yurn blue litmus into red No change |
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| 10107. |
What is the limitation of ocean thermal energy |
| Answer» \tCapital investment is very high.\tConversion efficiency is very low about 3-4% due to small temperature difference in between the surface water and deep water\tLow efficiency of these plants coupled with high capital cost and maintenance cost makes them uneconomical for small plants. | |
| 10108. |
Who is Johann Wolfgang Dobereiner |
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| 10109. |
SI unit of electric charge?_____ |
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Answer» Coulomb coulomb Coulomb |
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| 10110. |
What is the difference between organic acid and weak acid |
| Answer» In general,\xa0organic acids\xa0are\xa0weak acids\xa0and do not dissociate completely in water, whereas the\xa0strong\xa0mineral\xa0acids\xa0do. Lower molecular mass\xa0organic acids\xa0such as formic and lactic\xa0acids\xa0are miscible in water, but higher molecular mass\xa0organic acids, such as benzoic\xa0acid, are insoluble in molecular (neutral) form.\xa0A great\xa0way to identify\xa0whether or not you are looking at an\xa0organic acid\xa0is to find the carboxylic\xa0acid\xa0functional group, RCOOH. A\xa0weak acid\xa0is one that does not dissociate fully in water. ... Lactic\xa0acid, acetic\xa0acid, propionic\xa0acid, formic\xa0acid, butyric\xa0acid, valeric\xa0acid, oxalic\xa0acid, lactic\xa0acid, magic\xa0acid, citric\xa0acid, benzoic\xa0acid. | |
| 10111. |
What is chemical equation? Explain. |
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Answer» A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulae, wherein the reactant entities are given on the left-hand side and the product entities on the right-hand side. The process of representing a chemical reaction with the help of symbols is called a chemical equation. |
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| 10112. |
How to equation balance |
| Answer» To balance a chemical equation, start by writing down the number of atoms in each element, which is listed in the subscript next to each atom. Then, add coefficients to the atoms on each side of the equation to balance them with the same atoms on the other side | |
| 10113. |
Why do you think oxidation is good for metals justify your answer |
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| 10114. |
What is the Centre Of Curvature? |
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Answer» Thanks a lot the center of the circle whose center lies on the concave side of a curve on the normal to a given point of the curve and whose radius is equal to the radius of curvature at that point |
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| 10115. |
What is a electric current |
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Answer» The flow of electric charge is known as electric current. Electric current is carried by moving electrons through a conductor. By convention, electric current flows in opposite direction to the movement of electrons. Electric current is a flowing of a conductor is called a electric current |
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| 10116. |
Define the term elrctrical resistivity of material |
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Answer» Electrical resistivity is the reciprocal of electrical conductivity. It is the measure of the ability of a material to oppose the flow of current.\tMetals are good conductors of electricity. Hence, they have low resistivity.\tThe insulators like rubber, glass, graphite, plastics, etc. have very high resistivity when compared to the metallic conductors.\tThe third type is the semiconductor which comes in between the conductors and insulators. Their resistivity decreases with the increase in temperature\xa0and is also affected by the presence of impurities in them. Electrical resistivity, represented by the Greek letter ρ (rho), is a measure of how strongly a material opposes the flow of electric current. |
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| 10117. |
ohm law ke bare mei btao |
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Answer» Ohm law states that potential difference across the end of conductor is directly proportional to electric current flow through it V=RI V=RI |
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| 10118. |
What is bloody rain and how it occur |
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Answer» Tumne mujhe pahchana kaise? Yeah There is now a scientific consensus that the blood rain phenomenon is caused by aerial spores of green microalgae Trentepohlia annulata What is going on here????? |
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| 10119. |
What is Ohm\'s Law????? |
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Answer» Thanks a lot OHM’s law states that under no same temperature, electric current flowing through an ideal conductor is directly proportional to the potential difference across its ends.V ∝ IV = IR, R – Resistance |
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| 10120. |
Write the limitations of wind mills |
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Answer» There are only limited areas available where high sp3ed winds flow One of the main disadvantages of wind turbines is the noise pollution they generate |
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| 10121. |
How the fats of our body digested? Where this process are happen? |
| Answer» Fats are present in the form of large globules in the small intestine. The small intestine receives the secretions from the liver and the pancreas. The bile salts (from the liver) break down the large fat globules into smaller globules so that the pancreatic enzyme lipase can easily act on them. This is referred to as emulsification of fats. This process takes place in the small intestine. | |
| 10122. |
How can we identify atomic number of any element? |
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Answer» The number of protons is always equal to the atomic number The number of protons is equal to atomic numbet |
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| 10123. |
To plot the magnetic field pattern due to a bar magnet by using a compass |
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| 10124. |
Mean of land |
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| 10125. |
How were the positions of cobalt and nickel resolved in the modern periodic table |
| Answer» Cobalt has an atomic number 27 and nickel 28. According to the modern periodic law elements are arranged in the order of increasing atomic number. So, cobalt is placed before nickel even though their atomic masses are not in increasing order. | |
| 10126. |
what is magnetic? |
| Answer» Magnetic refers to exhibiting or relating to magnetism.\xa0Iron,\xa0cobalt\xa0and nickel, as well as alloys composed of these ferromagnetic metals, are strongly attracted to magnets. Other ferromagnetic metals include gadolinium, neodymium and samarium. Paramagnetic metals are weakly attracted to magnets, and include platinum, tungsten, aluminum and magnesium. | |
| 10127. |
Respiration is which type of chemical reactions |
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Answer» Exothermic reaction Respiration is an exothermic reaction There are two types of respiration:Aerobic respirationIt is a type of cellular respiration that takes place in the presence of oxygen to produce energy. It is a continuous process that takes place within the cells of animals and plants. This process can be explained with the help of the chemical equation: |
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| 10128. |
Why the windmills cannot be established at every place? |
| Answer» Because it needs high speed wind for running the fans of windmills and this condition is available everywhere, it is only operated at mountainous areas. | |
| 10129. |
What is bio- catalysts |
| Answer» Enzymes | |
| 10130. |
Whatis amalgam |
| Answer» An Ore of Hg and silver | |
| 10131. |
Variable resistence means |
| Answer» Changing resistance according to situation applied. | |
| 10132. |
Write a very short structure of heart for 3 marks |
| Answer» The heart is an organ that pumps blood throughout the body. It comprises four chambers:\tAtria (upper chambers)\tVentricles (lower chambers)The wall of the heart is made up of three layers:\tEpicardium-\xa0This is a protective layer made of connective tissues.\tMyocardium-\xa0This layer forms the heart muscles.\tEndocardium-\xa0This is the innermost layer and protects the valves and the heart. | |
| 10133. |
Applications of oxidation. |
| Answer» The losing of one hydrogen loss and gain of oxygen is called oxidised and this process is called oxidation....Hope this helps you.... | |
| 10134. |
kidney location in human being |
| Answer» The kidneys are bean-shaped organs (about 11 cm x 7 cm x 3 cm) that are located against the back muscles in the upper abdominal area. | |
| 10135. |
How to draw ray diagrams |
| Answer» There are many concepts—1. The the incident ray it should be always be parallel to the the principal axis mens should be straight.2.when incident day 4 on mirror it will reflect back and it will always pass through the focus.And the the secondary which we will pass through the the object it will we pass through the point which is next to the object if we placed the object beyond see it will pass through see if we put the object at see it will pass through if if put object if we will it will pass through f | |
| 10136. |
20 example of evolution of gas |
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Answer» Magnesium reacts with dilute acid to evolve hydrogen gas Dilute sulphuric acid reacts with zinc to evolve hydrogen gas |
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| 10137. |
Qhat is the function of pharynx and larynx? |
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Answer» how\'s that red The larynx, commonly called the voice box, is an organ in the neck of mammals involved in protecting the trachea and sound production. It manipulates pitch and volume.The pharynx is the part of the neck and throat situated immediately behind the mouth and nasal cavity. The pharynx is part of the digestive system and respiratory system of many organisms. |
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| 10138. |
What is the current through 5 ohm |
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Answer» 1/5 hoga Volt kaha h?? |
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| 10139. |
What does one mean by exothermic and endothermic reactions?Give examples |
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Answer» Exothermic reactions are the reaction in which heat is released by endothermic reaction in which heat is absorbed Exothermic reactions are those reactions in which heat is released.For eg. Carbon burns in oxygen to form carbon dioxide and heat energy is produced. C + O2 → CO2 + HeatEndothermic reactions are those reactions in which heat is absorbed.For eg.When nitrogen and oxygen are heated together to a particular temperature of about 3000oC, nitric oxide gas is formed.N2 + O2 + Heat → 2NO |
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| 10140. |
Difference between Aves and mammals |
| Answer» (a) Aves also known as birds are group of vertebrates that can fly. While mammals are group of vertebrates that have mammary glands.(b) Aves lay eggs while mammals give birth to babies.(c) Aves have wings whereas mammals have hands, hooves, and paws.(d) Aves have feathers while mammals have fur or hair.(e) Aves have dual respiratory cycles whereas mammals have single respiratory cycle. | |
| 10141. |
What are the steps involved in the process of photosynthesis |
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| 10142. |
What is the system that is developed because of this difficulty in those organisims |
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| 10143. |
What happen the milk is left at room temperature during summer |
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Answer» When the milk is left at room temperature, the oxidation reaction occurs and the growth of microorganisms occur due to which it gets sour. It will spoil |
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| 10144. |
Defination of orak pills used forpreventing pregnancy |
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| 10145. |
Defination of condoms |
| Answer» Condomns are the safety devices act as a physical barrier and help in preventing unwanted pregnancy. | |
| 10146. |
Describe ohm\'s law |
| Answer» Ohm\'s law states that current flowing through the conductor is directly proportional to the potential difference or voltage across the two ends of the conductor,provided all the physical conditions are constant like temperature.ohm\'s law is not applicable for superconductor and semi conductor | |
| 10147. |
Balance the chemical reactionHNO3+Ca(OH)2=Ca(No3)2 +Ho2 |
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Answer» 2HNO3+Ca(OH)2=Ca(NO3)2+2H2O H2O✔ HO2??❌ Hey! I think that this equation should be like this:- HNO3+Ca (OH)2=Ca (NO3)2+H2O |
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| 10148. |
what is atomecit? |
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Answer» what about having 5 or more atom The number of atoms present in a single molecule is termed as its atomicity. It can be classified into three types.The molecules of many elements are composed of only a single atom of that element. They are termed as monoatomic. For instance, Ar (Argon), He(Helium). So their atomicity is one.On the other hand the molecules of many elements are composed of two atoms of that element. For instance, oxygen can never exist independently and exist as O2 molecule known as diatomic So its atomicity is 2.The molecules of many elements are composed of three atoms of that element. They are termed as triatomic For instance, O3, CO2. So their atomicity is 3.The molecules of many elements are composed of four atoms of that element. They are termed as tetra atomic For instance, P4, SO3. So their atomicity is 4.\xa0 |
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| 10149. |
Difference between non metal and metalloid. |
| Answer» Non metal\tThey occupy the right hand side of the Periodic Table.\tMost non-metals are brittle and are not malleable or ductile.\tAt room temperature, they are usually solids or gases.\tThey usually have low boiling and melting points (except carbon and boron).\tThey are poor conductors of heat and electricity.\tThey are usually less dense when compared to metals.\tThey tend to gain electrons during chemical reactions.Metalloid\tMetalloids exhibit some properties of metals as well as of non-metals. Hence, they are also known as semi-metals.\tBoron, silicon, germanium, arsenic, antimony, and tellurium are the most commonly recognized metalloids.\tThese elements run diagonally across the Periodic Table.\tThey may have a metallic or dull appearance.\tThey are usually brittle and are fair conductors of electricity.\tThey may gain or lose electrons during chemical reactions.\tThey form alloys with metals.\tThey are used as catalysts, biological agents, flame retardants, alloys and semiconductors in industries due to their unique properties | |
| 10150. |
We need to balance a skeletal equation . Justify the statement by giving example. |
| Answer» An equation must be balanced in order to comply with the " Law of Conservation of Matter " which says that matter is neither created nor destroyed in the course of a Chemical Reaction. An unbalanced equation would imply that atoms have been created or destroyed. | |