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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.
| 10051. |
What happrns when the milk is lift at room temprature during summer? |
| Answer» When the milk is left at room temperature during summer season the oxidation reaction occurs and the growth of microorganisms occur due to which it gets sour. | |
| 10052. |
Define the following -1. Life2. Life processes3. Nutrition4. Nutrients |
| Answer» The basic functions performed by living organisms to maintain their life on this earth are called life processes.Nutrient: A nutrient can be defined as a substance which an organism obtains from its surroundings and uses it as a source of energy or for the biosynthesis of its body constituents.Example: carbohydrates and fats are the nutrients which are used by the organism mainly as a source of energy.Proteins and mineral salts are nutrients used by organism for the biosynthesis of its body constituents like skin, blood, etc.Nutrition:Nutrition is the process of intake of nutrients (like carbohydrates, fats, proteins, minerals, vitamins and water) by an organism as well as the utilization of these nutrients by the organism. | |
| 10053. |
Balance the equationBacl2 + Al2(So4)^3—BaSo4+Alcl3 |
| Answer» 3Bacl2 + Al2( So4)^3-3Baso4+2Alcl3 | |
| 10054. |
Write any two applications of biogas |
| Answer» Biogas is produced from waste which is further used for the growth of plants. The various applications of biogas are:\tBiogas is usable in generating electricity.\t\xa0Biogas helps in reducing the global climate change.\tBiogas can generate one billion kilowatt hours of electricity.\tThis is quite enough to power millions of homes.\tThis is done by converting cow waste into methane with the help of anaerobic digestion process. | |
| 10055. |
How do we tell the difference between what is alive and what is not alive? |
| Answer» To tell something is alive or not are as follows:-1)All living things breathe.2)All living things repair and reproduce.3)All living things have a definite lifespan.4)All living things grow.5)All living things have the ability to evolve. | |
| 10056. |
What is biogas??? |
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Answer» Biogas is a gaseous fuel, especially methane, produced by the fermentation of organic matter. gaseous fuel, especially methane, produced by the fermentation of organic matter. |
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| 10057. |
What is the significance of baking soda in fire extinguishers |
| Answer» Baking soda, (sodium bicarbonate) is used in class C fire extinguishers. When sodium bicarbonate (baking soda) is heated by the fire it becomes sodium carbonate. ... The carbon dioxide starves the fire of oxygen smothering the fire and the water that is released cools the heat source. | |
| 10058. |
At which electrodes hydrogen and oxygen are released during electrolysis of water.? |
| Answer» Hydrogen on cathode and oxygen on anode | |
| 10059. |
What happen to the resistance of a circuit if the current through it is doubled ? |
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Answer» Thanks Half Thanx Half Resistence also get doubled because |
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| 10060. |
What is vital force of theory |
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Answer» Thanks sanket vital force theory, it was believed that living organisms could create organic compounds from non-organic ones, and this was the only way for organic compounds to be created. |
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| 10061. |
What is incineration and pyrolysis? |
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Answer» Pyrolysis is the thermal decomposition of materials at elevated temperatures in an inert atmosphere. Incineration is a waste treatment process that involves the combustion of organic substances contained in waste materials. |
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| 10062. |
Why carbon form mainly covlent bond |
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Answer» Low melting point and boiling points And have low melting and boiling points They are poor conductor of electricity Sorry for wrong ans Because they can share electrons |
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| 10063. |
10class oxford public school pillu khera mandi jind ma konsi books lagagi |
| Answer» | |
| 10064. |
How can we find out that precipitate is formed in the compound or not |
| Answer» | |
| 10065. |
How can find out that given solution is aqueous or not |
| Answer» | |
| 10066. |
How can we find out the valency of compound |
| Answer» Valency is defined as the combining capacity of an atom or a molecule. There are different ways to determine the valency of a given atom and they are:\tOctet rule:\xa0According to the octet rule, a compound is said to be stable when the outermost shell of the compound is having eight electrons. If the number of electrons in the outer shell is between one to four, the compound is said to have positive valency. For compounds with electrons four, five, six, or seven, the valency is determined by subtracting the electron from eight. All noble gases except for Helium have eight electrons.\tPeriodic table:\xa0Periodic table consists of elements that are arranged in such a way that, the valency of a given element can be determined. Metals in column 1 have a valency of +1 while the noble gases in column 18 have a valency of 0 and are inert.\tValency from the chemical formula:\xa0This rule is based on the octet rule and by observing the combining of an element, the valency can be determined.Therefore, these are the ways or methods that are used for calculating the valency. | |
| 10067. |
What is a chemical change? Give an example |
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Answer» Eg.:- burning of wood , cutting of trees. It is a change which chemical properties are involved .and it is irreversible.it is the permanent change A usually irreversible chemical reaction involving the rearrangement of the atoms of one or more substances. Ex-change of milk in curd |
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| 10068. |
Symbol of nio penten |
| Answer» What is a chemical change ? Give an example | |
| 10069. |
Balance chemical equationZinc+silver nitrate +zinc nitrate + silver |
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Answer» Thanks Zn+2AgNo3--->Zn(No3)2+2Ag |
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| 10070. |
State the type of respiration in which ATP is broken down to give rise to fixed amount of energy |
| Answer» ATP hydrolysis is the catabolic reaction process by which chemical energy that has been stored in the high-energy phosphoanhydride bonds in adenosine triphosphate (ATP) is released by splitting these bonds, for example in muscles, by producing work in the form of mechanical energy. | |
| 10071. |
What do u mean by detoxification?? |
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Answer» Detoxification is process of removing toxic sibstances Detoxification or detoxication (detox for short) is the physiological or medicinal removal of toxic substances from a living organism, |
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| 10072. |
Why do acids not show their acidic nature in the absence of water???? |
| Answer» The acidic behaviour of acid is due to the presence of hydrogen ions. The acids will not show its acidic behaviour in the absence of water, this is because acids do not dissociate to produce H+(aq) ions in the absence of water. | |
| 10073. |
birds have how many teeth in mouth |
| Answer» Birds do not have teeth | |
| 10074. |
How are chemical reactions expressed in the shortest way? |
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Answer» In chemical equation In chemical equation |
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| 10075. |
Tell the composition of soap |
| Answer» Soaps are made from fats and oils, or their fatty acids, by treating them chemically with a strong alkali. | |
| 10076. |
What is caring |
| Answer» The definition of caring is someone or something that shows kindness and concern for others. A person who is concerned about others and who does kind things for them is an example of someone who would be described as caring.An example of care is how someone feels about the well being of their pet. An example of care is someone paying special attention to how they are driving in unfavorable weather. An example of care is someone leaving their children to be watched over by another. | |
| 10077. |
Calsium sulphate react with copper and form ......... |
| Answer» No reaction take place because copper is less reactive than calcium | |
| 10078. |
Calsium sulphate react with copper and form....... |
| Answer» | |
| 10079. |
Name the component of eye that is responsible for the adjustment of eyelens? |
| Answer» Ciliary muscles | |
| 10080. |
Is gavava tree parastic plant |
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Answer» No No |
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| 10081. |
Why solid do not conduct electricity in ionic compound |
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Answer» Ionic compounds are formed by attraction between the positive and negative ions. These ions cannot move out of their fixed positions. Thus, solid ionic compounds do not conduct electricity.When ionic compounds are in molten state or dissolved in water forming a solution, the ions can move. Then ionic compounds conduct electricity. They do not ha e tendency to conduct electricity Because they have not the tendency and they have a fixed shape |
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| 10082. |
Why iodine less reactive than chlorine |
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Answer» Chlorine has a higher effective nuclear charge, and therefore should be more oxidizing than iodine.The nuclear charge of chlorine is less shielded by intervening electrons. Thus chlorine gas should be a better oxidant.If we turn to reduction potentials, which we should do as scientists because scientists must utilize quantitative data, we find: |
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| 10083. |
What are the components of the transport system in highly organized plants ? |
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Answer» In highly organized plants, vascular tissues (Xylem and Phloem) are the main components of transportation system. In general, xylem carries the water and minerals from roots to the aerial parts of the plants, whereas phloem carries food from leaves to other parts of the plants.Xylem are lignified tissues and are characterized by tracheids and vessels. Evaporation of water from leaves (transpiration) creates a suction or pull that enables xylem to pull water from roots. Sometimes, the water may also move into roots due to osmosis and this will create a positive pressure on xylem to transport water. Xylem transports water and soluble nutrients, in response to transpirational pull and water osmosis, by capillary action and is capable of transporting water to great heights within tall plants.Phloem are non-lignified tissues and transport soluble products of photosynthesis. They are characterized by living cells and transport the sugars by the process of translocation. Unlike xyle, phloem carries out multi-directional flow by using hydrostatic pressure. Xylem And phloem |
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| 10084. |
Why it is necessary to separate oxygenated and deoxygenated blood in mammals and birds ? |
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Answer» It is necessary to separate oxygenated and deoxygenated blood in mammals and birds because . When oxygenated blood is separated it produces a. High amount of oxygen which is a requirement for the mammals and birds because they have to maintain their body temperature Because if deoxygenated blood is transfer to organs than it cause the problem of lac of oxygen And if this problem increase than it may cause death |
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| 10085. |
What is tectonic plate? |
| Answer» A tectonic plate ( also called lithospheric plate ) is a massive , regularly shaped slab of solid rock , generally composed of both continental and oceanic lithosphere . | |
| 10086. |
What is glycoprotein |
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Answer» Glycoproteins are proteins which contain oligosaccharide chains (glycans) covalently attached to amino acid side-chains Hii |
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| 10087. |
what is call |
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Answer» In which we are talking to our friends , relatives etc an houror more than that. Kon see call miss call , video call etc Or cell |
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| 10088. |
What is saprophitic nutrition |
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Answer» Those organisms who feeds on dead and decaying plants or animals material known as saprophytes and those organisms follow this mode of nutrition called saprophytic nutrition e. g. -fungi ,bacteria. Ya insta. Pr |
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| 10089. |
Give two examples of organisms carrying out holozoic nutrition |
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Answer» Human being dog ,cat, bat Amoeba ad dogs Amoeba,paramecium,etc Human beings and dog Holozoic nutrition is a method of nutrition that involves the ingestion of organic material, as animals do. Example - All animals, amoeba |
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| 10090. |
Why light travels in a straight path? |
| Answer» Every electromagnetic radiation tends to move in a straight line unless an external force is applied to it.light travels in a straight line but it bends when it comes in contact with the astronomical objects. also light bends due to atmospheric refraction. but this bending is very small and we need very sharp and highly precise instruments to see this. | |
| 10091. |
Balance the equation MnO2 + Al = Mn + Al2O3 |
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Answer» 3Mno2 +4Al=3Mn+2Al2 o3 3Mn O2 + 4Al = 3Mn + 2Al2 O3 |
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| 10092. |
Define ATP ?? |
| Answer» Andinosine triphosphate is the energy currency of cell made by mitrochondria. | |
| 10093. |
Why are decomposition reactions called the Opposite of combination reaction ? |
| Answer» Because in combination reaction two or more reactant combined and make single product but in decomposition reaction single reactant divide into two or more product | |
| 10094. |
when hcl added zinc granules |
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Answer» Thanks Zncl2+H2 forned |
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| 10095. |
Explain functioning of human heart |
| Answer» The function of human heart :-* It is a four chambered structure consisting - the right auricle , the left auricle , right ventricle and left ventricle.* The Auricles are smaller and placed above the ventricles. Auricles are partitioned by a muscular called septum.* The right auricle receives the deoxygenated blood from all parts of the body except the lungs. It pumps this blood into the right ventricle. Then , the right ventricle pumps the deoxygenated blood to the lungs. The left auricle receives oxygenated blood from the lungs through pulmonary veins. It pumps this blood into the left ventricle. The left ventricle pumps the oxygenated blood to the distant organs in the body.* Each auricle communicates with the ventricle of its side by a pore which is guarded by valves. These valves allow the blood to flow from the auricles to the ventricles but check its return to the auricles. Thus , the heart there is a complete separation of oxygenated and deoxygenated blood. The heart is enclosed in a double membrane called pericardium. It contains fluid which protects the heart from any shock or mechanical injury.*The heart collects blood through both the auricles and then distributes it through ventricles. The action of heart includes contraction and relaxation of the auricles and ventricles.* A contraction of heart is called systole and diastole. The contraction and relaxation occur in an automatic rhythmic fashion. The auricles and ventricles contract alternately. The rhythmic contraction and relaxation of heart is called a heart beat. | |
| 10096. |
How to balance equation in simple way |
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Answer» Ny making equal number of atom both sides. by making = no. of atoms both side |
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| 10097. |
Pivotal role means |
| Answer» A pivotal role, point or figure in something is one that is very important and affects the success of that thing. | |
| 10098. |
What is pyurvate |
| Answer» Pyruvate is the end product of glycolysis , which is converted into acetyl coA that enters the Krebs cycle when there is sufficient oxygen available. When the oxygen is insufficient , pyruvate is broken down anaerobically , creating lactate in animals (including humans) and ethanol in plants | |
| 10099. |
Structure of leaf is complementary to its function .Explain |
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Answer» Thank you Leaf is a flattened and thin structure of higher plants which perform functions like photosynthesis and transpiration.Leaves have adapted their structure which complement their functions:Large surface area: The flattened structure increases the surface area of the leaves so that more light falls on the leaves. It increases the rate of the photosynthesis.Thin structure: The thin structure of the leaves helps in the diffusion or exchange of the gases between atmosphere and cells of the leaves.Veins: these are structures which help in transportation of water and food.Stomata: These are tiny pores present in the surface of leaves which help in exchange of gases and water. |
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| 10100. |
A glass rod is rubbed with silk. State the charge acquired by glass and silk |
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Answer» The glass rod is negatively charged On rubbing a glass rod with silk, the electrons from the glass rod get transferred to the silk. The silk now has an excess of electrons and so is negatively-charged. On the other hand, the glass rod is deficient in electrons and hence is positively-charged.In the above example, the silk undergoes negative electrification.Hence, silk obtains negative charge and glass retains positive charge. |
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