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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.
| 59001. |
What is the clotting time of the human beings??? |
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Answer» Thanks Clotting time is the time required for a sample of blood to coagulate in vitro under standard conditions. The expected range for clotting time is 4-10 mins. 8 to 15 minutes |
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| 59002. |
What are necessary conditions of photosynthesis |
| Answer» i) SUNLIGHT : Chlorophyll of the leaves of the plant trap sunlight and converts them into chemical energy during photosynthesis. Plant utilizes visible light only which is made up of 7 colours and green colour is least absorbed ( it reflects green the most - that\'s why the leaves appear green).ii) CHLOROPHYLL: Chlorophyll is a green pigment mainly present in the leaves of the plant. There are many types of chlorophyll named a, b, c, d, e and bacterio-chlorophyll. Chlorophyll a and chlorophyll b are most abundently present in the nature.iii)CARBON DIOXIDE: Plants take carbon dioxide through stomata to make glucose(food for the plants).iv) WATER: Water is absorbed by the roots of the plants through osmosis. Through xylem, water is tranported to all parts of the plant. | |
| 59003. |
How plants obtain CO2 and H20? |
| Answer» Co2 in gas form and H20 in water form | |
| 59004. |
mention the characteristics of image formed by concave mirror when an object is placed 2F |
| Answer» Position is infinity, real ,inverted | |
| 59005. |
What process would you considered essential for maintaining life |
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Answer» There are various life processes which are essential for maintaining life. Some of them are as follows:-a. Nutritionb. Respirationc. Excretiond. Transportation Are life processes bhi whi hote hai jo honey bol raha hao Honey shi bol rha h Life processes There are many processes which could be considered essential for maintaining life such as nutrition , respiration , digestion , etc etc etc. |
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| 59006. |
Why should a chemical equation be balanced |
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Answer» Chemical reaction has RHS reactants LHS product first you should see the element with high number of electron and try to blance it next blance other electrons for ex : For balancing H2 + O2----◆H20 2H2 + O2 -----◆ 2H20 So blance from the electron having high valency Maine bhi toh yhi btaya...khud hi btana tha toh pucha kiu..?? Chemical equation should be balanced in order to satisfy law of conservation of mass .i.e mass of reactent is equal to the mass of product in a chemical reaction In order to justify the law of conservation of mass...which state that the no. Of electrons on reactants side is equal to no. Of electon on products side. |
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| 59007. |
Light exists in particle form or wave form |
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Answer» Both particle |
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| 59008. |
What is law of conservation |
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Answer» The law of conservation of energy states that energy can neither be created nor be destroyed. It may be transferred from one of its forms to the other. If you take all forms of energy into account, the total energy of an isolated system always remains constant.Law of conservation of mass: It states that mass can neither be created nor destroyed in a chemical reaction. During any change, physical or chemical, matter is neither created nor destroyed. However it may change from one form to another. According to the law the total mass of product must be equal to the total mass of reactantOrthe number of atoms of each element of the reactant must be equal to the number of atom of each element of product |
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| 59009. |
what is the difference between caustic soda and Washing soda |
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Answer» The chemical formula for washing soda is Na2Co3..and it\'s chemical name is sodium carbonate decahydrate (NA2CO3.10H2O) Caustic soda is a very strong base and is also called sodium hydroxide with chemical formula NaOH.Washing soda is a weak base and is also called sodium bicarbonate with chemical formula NaHCO3. |
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| 59010. |
Kya hamara body cell v atom ka bana hai |
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Answer» Noap Nahi |
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| 59011. |
A wire of resistivity p is stretched to double its lenght . Ehat is the new resistivity |
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| 59012. |
Crop porduction explain? |
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| 59013. |
Why cell burn when it comes in contact with HCL???? |
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| 59014. |
I want to share with you my own science theory |
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Answer» Ohk....but how will you seprate?? Its seprating carbon and oxygen from carbon dioxide and prevention of depletion of ozone layer What\'s your theory?? That\'s created by me Rohit ???? But i have May i share it |
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| 59015. |
Na + O2 gives Na2O |
| Answer» 4 Na + O2 --> 2 Na2O..... | |
| 59016. |
How many types of chemical reaction? |
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Answer» There are five types of chemical reactions . They are as follows :1.Combination reaction2.Decomposition reaction3.Displacement reaction4.Double-displacement reaction5.Oxidation and Reduction reaction 4 types |
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| 59017. |
When we change feeble sound to loud sound we increase its ? |
| Answer» Amplitude | |
| 59018. |
What is 1 volt electric current |
| Answer» One volt is the potential difference between two points in a current carrying conductor when 1 joule of work is done to move a charge of 1 coulomb from one point to the other. 1 volt = 1 joule/1 coulomb; 1 V = 1 J/ C. | |
| 59019. |
How do plant gets nutrition |
| Answer» Roots aur photosynthesis se... | |
| 59020. |
How the nutrition takes place in case of Amoeba? Explain step by step |
| Answer» Amoeba is a shapeless unicellular microscopic organism. It have a simple stucture of body for nutrition. It uses an special stucture known as pseudopodia for aquring food. When any organism came near it, pseudopodia surrounds it and then engulf it with its help. Then it follows the process of1.ingestion 2.digestion3.egestion The extra material which is useless is excreted by amoeba.#hope it help# | |
| 59021. |
Anyone help me in science 1 chapter |
| Answer» Yess whats the problem | |
| 59022. |
what is the relationship between magnification and focal length of convex lens? |
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| 59023. |
Difference between articles and venticles |
| Answer» Arteries Thick walled Deep seatedCarry blood away from the heart Valves are absent Carry oxygenated blood Veins Thin walled Superficial Carry blood to heart Valves are present Carry deoxygenated blood | |
| 59024. |
Explain breifly Potential Defference and its SI unit with the help of labbelled diagram. |
| Answer» The difference in the amount of electric potential energy between two points in an electric circuit is called ELECTRIC POTENTIAL DIFFERENCE.Electric potential difference is known as voltage, which is equal to the work done per unit charge to move the charge between two points against static electric field.SI unit of electric potential difference is volt and denoted by ‘V’. This is named in honour of Italian Physicist Alessandro Volta. | |
| 59025. |
How many types of acids |
| Answer» a. Organic acids: Acids derived from living organisms like plants and animals . For example: citric acid is present in fruits, acetic acid present in vinegar, oxalic acid present in tomato, tartaric acid present in tamarind, lactic acid present in sour milk and curd.b. Mineral acids: They are also called inorganic acids. They are dangerous Example sulphuric acid (H2SO4), hydrochloric acid (HCl) etc. | |
| 59026. |
What is Filament of bulb |
| Answer» \tThe bulb has two thick contact wires in the center with a thin wire attached between them. This thin wire is called filament.\tOne of the thick wires is connected to the metal case at the base of the bulb and the other is connected to the metal tip at the center of the base. These two form the terminals.\tWhen electricity is passed through the terminals of the bulb, the filament gets heated up and produces light.\tA bulb is said to be fused if the filament gets broken. Fused bulb doesn’t glow. | |
| 59027. |
Why does the colour of copper sulphate solution changes when an iron nails is dipped in it? |
| Answer» Copper sulphate solution is blue in colour but when iron is dipped into it, the iron displaces copper from its salt solution and copper sulphate solution changes to greenish colour. | |
| 59028. |
What is parallel beam |
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| 59029. |
An article on animal cell.Plz 11 baje se pahle bata do project file banani h kal jama hogi |
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| 59030. |
List two function performs pancreas in our body |
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| 59031. |
Why cloudy days are more warm than others day? |
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Answer» Because of humidity ?? Because of the humidity |
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| 59032. |
explain oxidation |
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Answer» The reaction proceeds by the addition of Oxygen (or) removal of hydrogen is called oxidation (or) Loss of electrons (or) the reaction proceeds with increase in the oxidation state (charge) of the central atom is called oxidation. Generally Oxidation reactions are exothermic reactions.Ex: C + O₂ → CO₂(i) In the above while burning Carbon, it under goes oxidation (addition of oxygen) producing carbon dioxide. The energy released during this reaction is used for our needs (cooking food, boiling water).(ii) In the formation of water, Hydrogen from Zero \' 0 \' oxidation state increased to +1. So, hydrogen is oxidised in the formation water. Reactions in which a substance gains oxygen and loses hydrogen is called Oxidation reaction. The addition of oxygen to a substance and removal of hydrogen from a substance is called oxidation. The process in which hydrogen are released or oxygen are absorbed are known as oxidation reaction |
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| 59033. |
C plus photo is equal to |
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| 59034. |
Why ammeter is always connected in series in a circuit |
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Answer» Are you satisfied mr Aryan rana An ammeter is connected in series with the circuit because the purpose of the ammeter is to measure current through circuit.since the ammeter is a low impedance device, connecting it in parallel with the circuit would cause a short circuit,damaging the ammeter and /or the circuit Because the resistance offered by ammeter is negligible |
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| 59035. |
Why ammometer is always connected in series in a circuit |
| Answer» The\xa0internal\xa0resistance\xa0of\xa0the\xa0ammeter\xa0is\xa0very\xa0low.If\xa0we\xa0connect\xa0it\xa0in\xa0series,\xa0then the\xa0maximum\xa0current\xa0can\xa0flow\xa0through\xa0it.\xa0So\xa0the\xa0accurate\xa0current\xa0should\xa0be measured.\xa0If\xa0we\xa0connect\xa0it\xa0in\xa0parallel\xa0then\xa0the\xa0accurate\xa0current\xa0can’t\xa0be measured. | |
| 59036. |
write four characterstics which shows chemical change has taken place |
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Answer» 1change in colour2change in temperature3change in state4evolution of heat 5formaion of precipitate 1. Change in state.2. Change in colour.3. Change in temperature.4. Evolution of gas. |
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| 59037. |
May I know this times syllabus for annual exams? |
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Answer» 9+10 ka course 9+10+11 class ka course... |
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| 59038. |
Can a body grow after growth plate are closed |
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| 59039. |
How is the chemical reaction done plz explain tge rules of it |
| Answer» According to the law of conservation of mass, when a chemical reaction occurs, the mass of the products should be equal to the mass of the reactants. ... A balanced chemical equation occurs when the number of the atoms involved in the reactants side is equal to the number of atoms in the products side..... visit book or Wikipedia for the rules of CR.. Okay | |
| 59040. |
Ingestion defination |
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Answer» Ingestion: The process of taking food into the body is called ingestion. In human beings, food is ingested through the mouth. The food is put into the mouth with the help of hands. Intake of food into the body of an organism is known as ingestion |
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| 59041. |
What will happen if we not clean Magnesium ribbon |
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Answer» \xa0Magnesium ribbon is a very reactive metal. When stored it reacts with oxygen to form a layer of magnesium oxide on its surface. This layer of magnesium oxide being a stable compound prevents further reaction of magnesium with oxygen. The magnesium is cleaned before burning in air to remove this layer so that the metal can be exposed to air properly. We don\'t get desired chemical reaction as the mg ribbon has a layer of mgo ... |
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| 59042. |
What is the process of digestion in animals? |
| Answer» Digestion:\tThe digestion of food begins in the mouth itself.\tThe teeth cut the food into small pieces, chew and grind it. (Physical digestion)\tThe salivary glands in our mouth produce saliva (watery liquid) which contains an enzyme salivary amylase which digests the starch (carbohydrate) present in the food into sugar. (Chemical digestion)\tOur tongue helps in mixing this saliva with food.\tThe digestion of food remains incomplete in mouth. | |
| 59043. |
In what case of when we called redox reaction |
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Answer» \tA redox reaction is a type of electrochemical reaction where oxidation and reduction occur simultaneously. Redox is the short form for “reduction and oxidation”.\tAccording to it oxidation is defined as ‘addition of oxygen or an electronegative element to a substance (or) removal of hydrogen (or) an electropositive element from a substance’.\tReduction is the opposite of oxidation.\xa0Reduction can be defined as‘removal of oxygen (or) an electronegative element from a substance or addition of hydrogen (or) an electropositive element to a substance’.\tThus according to the classical concept, redox reactions can be defined as” the reactions in which both oxidation and reduction takes place simultaneously”. When oxidation and reduction both are taking place... |
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| 59044. |
Valency of all chemicals |
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| 59045. |
What is human reproduction |
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Answer» Reproduction in human beings is by sexual reproduction where both the male and female gametes fertilize to give rise to an embryo. The fertilization of human embryo occurs inside the body of the female. Thus, it is called Internal Fertilization. Human Beings are viviparous organisms who give rise to Embryos directly instead of laying eggs. Human reproduction is any form of sexual reproduction resulting in human fertilization, typically involving sexual intercourse between a man and a woman. |
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| 59046. |
List the sign convention for reflection of light by spherical mirror with ray diagram. |
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| 59047. |
What is physical and chemical changes? |
| Answer» The physical property of the substance get changed and no new substance is formed is called physical changeThe chemical property of the substance get changed and one or more new substances are formed is called chemical change | |
| 59048. |
The addition of hydrogen to a substance is called |
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Answer» Reduction Reduction reaction Reduction |
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| 59049. |
WHY IS DOUBLE THE AMOUNT OF GAS COLLECTED IN ONE OF THE TEST TUBES IN THE ACTIVITY, NAME THIS GAS? |
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Answer» The gas is hydrogen Because water have 2 atoms of hydrogen while 1 of oxygen hence the test tube containing hydrogen gas contains gas which is double the amount than that contained by the test tube containing oxygen gas. Thanks Na(sodium) Sodium |
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| 59050. |
What is meant by magnification of mirror ? |
| Answer» Magnification produced by a spherical mirror gives the relative extent to which the image of an object is magnified with respect to the object size.\tA negative sign in the value of the magnification indicates that the image is real.\tA positive sign in the value of the magnification indicates that the image is virtual. | |