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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.
| 59701. |
what is meant by mitochondria |
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Answer» It is also known as powerhouse of the cell. An organelle found in large numbers in most cells,in which biochemical process of respiration and energy takes place. |
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| 59702. |
Image formation of concave and convex lens 6 daigram |
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Answer» Where is your answer Refer NCERT |
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| 59703. |
What happens when: 1) Lead nitrate is heated 2) crystals of iron sulphate is heated |
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Answer» Thanks nikita Written in ncert chemistry book. Ohk I dont know What ?\u200d♂️?\u200d♂️?\u200d♂️?\u200d♂️ |
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| 59704. |
How to easy summaries chapter 1 and 2 |
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Answer» Check summary of chapters in revision notes here :\xa0https://mycbseguide.com/cbse-revision-notes.html By the way GM Wats your full name But i am searching another way Thanks |
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| 59705. |
Why does lime water turn milky when CO2 is passed into it? |
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Answer» CO2 reacts with lime water to form insoluble CaCO3 which appears as a white precipitate.Ca(OH)2 + CO2 → CaCO3 + H2O Link pe jao maine photo dala hu notes ki https://drive.google.com/file/d/1hnxnSH7iT5NZfuKoufrJkn6PBHHIAIOh/view?usp=drivesdk Ye chemistry ka h sayad |
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| 59706. |
What is the resistance of wire when the diameter is doubled |
| Answer» Resistance/4 , if you are taking area = pie (r)2 | |
| 59707. |
What is a function of vasopressin hormone? |
| Answer» To dilute or concentrate urine acc. to access or shortage of water. | |
| 59708. |
Give one example of chemotropism. |
| Answer» Growth of pollen tube towards ovules. | |
| 59709. |
Explain kepers laws |
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Answer» By the way these laws are studied in class 9th. Kepler\'s laws:-1.) All the planets revolve around the sun in an eliptical path assuming sun is centred at one of the two foci. 2.) The line segment joining a planet and sun sweeps equal areas in equal time interval. 3.) Square of time period of revolution of a planet around the sun is proportional to the cube of semi-major axis of its orbit. Do you mean Kepler\'s laws Out of subject |
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| 59710. |
where is epiglottis present |
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Answer» Epiglottis present in troat and it separates food pipe from air pipe or trachea In throat |
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| 59711. |
Respiration is vital function of our body justify |
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Answer» Our body needs continous amount of energy for performing various matabolic function and that energy is provided to us by the process of resperation (as we all know that we dont have arc reactor for energy supply as Tony Stark have.) hi |
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| 59712. |
How to remember things |
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Answer» Exercise to clear your head.Write down what needs to be memorized over and over.Do yoga.Study or practice in the afternoon.Relate new things to what you already know. Stay away from multitasking. Which type of things ....? |
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| 59713. |
Na2 |
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Answer» Sodium Sodium What Na2 |
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| 59714. |
What is the difference between tropic movement and nastic movement |
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Answer» \tTropic movementsNastic movements1. It can be easily observed in stems and roots.1. It is clearly observed in bilaterally symmetrical organs such as leaves and petals of flowers.2. It is due to unilateral stimulus which causes unequal growth on the two sides of a stem, root and tendril.2. The movements occur due to stimulus of light and temperature.3. Movement is related to stimulus, i.e., plant organs either move towards source of stimulus or away from it. Stimuli which causes movements in plants are gravity, light, touch, water and chemical substances.3. Opening and closing of flowers of evening primrose and tobacco at the night and day respectively. This is due to unequal growth.4. Example: Bending of root towards gravity and shoot towards light.4. Example: Leaves of ‘touch-me-not’ plant bend and droop on touching.\t Thanks |
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| 59715. |
Will practical ques asked in scince exam |
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Answer» Yes 10 marks are for that Yapp,.. May be practical based section in exam will be upto 10 to 12 marks. Yes, of course Yes practical questions can be asked. |
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| 59716. |
Kya scince exam me practical question ayega |
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Answer» Ha practical questions per 10 marks haa Ham 10 to 12 marks taak ka hoga practical section exam main... Some Yes only some questions will come in paper |
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| 59717. |
Fe2O3 + 2AL = AL2O3 +2Fe it is which reaction |
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Answer» Displacement reaction It is a displacement reaction as the (Fe)iron dispaces from O3 and Al is reacted with O3 Displacement reaction Displacement reaction Displacement reaction as m ore reactive metal (Al) take palace of less reactive metal in compound. Displacement reaction |
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| 59718. |
How is heat proportional to resistance |
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Answer» Heat is directly proportional to resistance. Yes you are right heat is directly proportional to resistance Am I right Directly prportional |
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| 59719. |
Name two consituant of biogas |
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Answer» Methane,Co 2 Two constituent of biogas are-MetaneOxygen The constituent of biogas is methane, carbon dioxide, hydrogen, hydrogen sulphide,oxygen. In some cases biogas contain siloxanes biogas |
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| 59720. |
Differntiate between single and double circulation found in vertebrates |
| Answer» \tSingle CirculationDouble Circulation 1.\xa0In this type of blood circulation which the blood passes through the heart only once during a complete circulation of the body.\xa01.\xa0In this type of blood circulation in which the blood passes through the heart two times during a complete circulation of the body.2.\xa0Occurence: Only in fishes. 2.\xa0Occurence: Only inamphibians, reptiles, birds and mammals.\xa03. Nature of the blood: only venous blood passes through the heart.3. Nature of the blood: Mixed or oxygenated blood passes through the heart.4. It is less efficient mode of circulation.4. It is more efficient mode of circulation.\t\xa0 | |
| 59721. |
What is the main difference between artery and vein? |
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Answer» ARTERIES:-*Arteries have thick and elongating walls*Arteries carry blood away from heart (oxygeneted blood)*presence of BPVEINS:-*Veins are thin walled*Carries blood to heart (deoxygeneted blood)*Valves ensures the movement of blood to one direction Arteri pumps blood from heart to various parts of bodyVeins pumps blood from various parts of body to heart 1.) Aetries carry oxygenated blood from heart to the different parts of the body.But in case of viens it carry deoxygenated blood from different body parts back to the heart.2.) In artery Blood flows under high pressure.But in vien Blood flows under low pressure.3.) Atreis have thick and elastic wall.But wall of vien is thin and non elastic as compared to artery.4.) Arteries are usually positioned deeper within the body.But Veins are usually positioned closer beneath the surface of the skin.5.) Artery doesn\'t contain valve as the pressure from the heart is so strong that ghe blood is only able to flow in one direction.But viens contain valve to prevent the backward flow of blood.6.) Ateries do not have blood but viens are filled with blood even after death. Arteries carry oxygenated blood away from the heart to the body, and veins carry oxygen-poor blood back from the body to the heart. Artery is thick and vein is thin |
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| 59722. |
why air is not visible ,can only be feel ? |
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Answer» thankyou Air is considered as force which tend to move dust particle present in environment that colide woth our skin give us it feel.And we all know that force is not visible that\'s why we can\'t see air only observe it |
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| 59723. |
How do amoeba obtain its food |
| Answer» Amoeba\xa0takes in food using temporary finger-like extensions of the cell surface which fuse over the food particle forming a food-vacuole as shown in figure. Inside the food vacuole, complex substances are broken down into simpler ones which then diffuse into the cytoplasm. The remaining undigested material is moved to the surface of the cell and thrown out.\xa0 | |
| 59724. |
Did electrons move in circuit or protons |
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Answer» Electrons move in a circuit.. protons are stationary in the nucleus of atom and electrons revolve around it. This shows that electrons moves in a circuit. Electrons |
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| 59725. |
What is the equation to describe formation of sodium bicarbonate |
| Answer» NaCl+H2O+NH3+CO2--------->NaHCO3+NH4Cl | |
| 59726. |
What is circulayion |
| Answer» | |
| 59727. |
What is full form of IUPSC? |
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Answer» Ohh thanks for correcting The international union of pure and applies chemestry And you type IUPSC instead of IUPAC |
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| 59728. |
Why bubbles are formed in soap solution |
| Answer» | |
| 59729. |
Which effect of current is utilised in the working of electric fuse? |
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Answer» Heating effect Heating effect of electric current |
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| 59730. |
DefinePhototropismGeotropismChemotropism |
| Answer» | |
| 59731. |
What is osmoregulation.What is serum |
| Answer» Osmoregulation is the maintenance of the ionic and tconcentration and amount of water and salts in the body of the organism. It is the regulation of the osmotic pressure of an organism\'s body fluids to maintain the homeostasis of the organism\'s water content and the concentration of salts and ions | |
| 59732. |
Give reason:Respiratory surface of earth worm is its skin |
| Answer» The respiratory system of earthworm is its skin called cuticle called cutaneous respiration because they are lower level organism and they don\'t have complex structures. | |
| 59733. |
Show CO2 is released in respiration by activity |
| Answer» During the respiration , CO2 is released.During exhalation take a test tube containing Ca(OH)2 near your mouth...You will saw that the Ca(OH)2 becomes milky...Ca(OH)2 becomes milky only in presence of CO2 ...Therefore, co2 is always released during respiration... | |
| 59734. |
Mind map of life processes |
| Answer» | |
| 59735. |
Why pH of NaCl is neutral? |
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Answer» Faisal is right Bhumika and jyoti u were close Becaise a salt has a ph of 7 NaCl is formed by the reaction between NaOH and HCl which are strong base and strong acid respectively. So they will completely dissociate and neutralise each other. So the pH will be 7 NaCl is salt and its pH value is always 7 |
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| 59736. |
Indicate the flow of energy in an ecosystem |
| Answer» Only 50% of the incident solar radiation is photosynthetically active radiation. Out of this plants capture about 2 to 10% of the energy. This small fraction of energy is what sustains life on the earth. The energy flows from produces (green plants) to consumers or to detritus. The flow of energy follows 10% rule. As per this rule 90% of the energy is spent in metabolic activities by an organism and only 10% is available for the next component of the food chain.Producers{tex} \\to {/tex}Primary consumers {tex} \\to {/tex}Secondary consumers {tex} \\to {/tex}Tertiary consumersBecause of this 10% rule a food chain can have limited number of levels. Numerically also the number of organisms in a particular level will be less than that in the previous level | |
| 59737. |
What is the causes of charging |
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Answer» The cause of charging is the transfer of electrons from one body to the other. The charging are moveing one body to another body transfer electrons so that is called charging |
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| 59738. |
Write reaction of acid with metal carbonate and bicarbonate |
| Answer» HCl +NaCO3- NaCl+ CO2+H2OandHCl+NaHCO3-NaCl+H2O+CO2 | |
| 59739. |
General formula of detergent |
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Answer» This is washing soda Na2co3.10H2o CaOCl2.... Think so It is given in the textbook page.no.30 |
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| 59740. |
State the conditions on which resistance of a conductor depends |
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Answer» On the length of the resistance, area,nature of the material,temperature Area and length or the nature of matrial one more that is temperature. 1.) Its length, 2.) Its area of cross-section, 3.) The nature of the material of the conductor. Resistance of a conductor depends on the length of the conductor and area of cross section Area, length, temperature |
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| 59741. |
Define the unit of charge ? |
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Answer» When 1 amphere charge transfer in 1 sec it mean the conductor have 1 coulomb chargeQ = IT Define one coulomb ? A unit charge refers to a charge of one coulomb which is also the SI unit of charge. |
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| 59742. |
What is chemical reaction? Write the types of chemical reaction |
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Answer» Chemical rxn is a rxn in which two or more substance reacted with each other to form a new product .There are mainly 4 types of chemical rxns.1.combination rxn 2.decomposition rxn 3.displacement rxn 4.double displacement rxn. A chemical reaction is the process by which atoms of one or more substances are rearranged to form different substances. Types of chemical reaction:- 1.) Combination reation.2.) Decomposition reaction.3.) Displacement reaction.4.) Double displacement reaction.5.) Precipitation reaction.6.) Combustion reaction.7.) Redox reaction.8.) Neutralisation reaction. |
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| 59743. |
Write the principle and construction of moter state the function of its part |
| Answer» Principle of electric motor:- when a current carrying wire is placed in a magnetic field,it experiences a force on it. | |
| 59744. |
What is good and bad conductors? |
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Answer» Good conductor means it conducy electricity Good conducted conduct electricity and heat. Bad condecter didnt conduct electricity and heat .... All metal are good condecter of electrical and heat |
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| 59745. |
Why is photosynthesis considerd as endothermic reaction |
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Answer» Photosynthesis is an endothermic reaction because sunlight energy is absorbed during the process of photosynthesis by the plants.And our definition says that when in a reaction heat is absorbed it is termed as endothermic reaction. Bcoz heat energy is absorbed during photosynthesis |
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| 59746. |
Give three types of decomposition reaction. |
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Answer» Thermolysis,electrolysis,photolysis CaCO3 - - - > caO+CO22kclo3 - - - > 2kcl+3022feso4 - - > feo3+so2+so3Here are the 3 examples of decomposition reactions In electrolysis of water ,why is the molecule of gas collected over one electrode double that of other electrode. Thermo decomposition, electrical decomposition ,photo decomposition |
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| 59747. |
Give one use of quick lime |
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Answer» For making our home,s wall its react with cement It is used:(i) in the preparation of cement, glass and calcium carbide.\xa0(ii) in the purification of sugar(iii) in drying alcohol and non-acidic gases like ammonia etc.,(iv) in softening of hard water.\xa0(v) as a flux in the extraction of metals.\xa0(vi) in agriculture as a fertiliser, disinfectant and germicide. Cao is used for Making calcium hydroxide and calcium hydroxide is used for (putty) plane the surface of walls It can be added to rivers after acid rain to control the ph of acid present in water. |
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| 59748. |
What are the functions of heart? |
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Answer» Our heart is 4 chamberd . It have superior and inferior vena cava which contains deoxygenated blood from our body and pass it to the left ventricle than it pass it into the left atrium than blood is at lunges through pulmonary artery into lungs our deoxygenated blood convert into oxygenated blood than blood is at right atrium through pulmonary veins than our going into right ventricle than blood is distributed to our body part through aorta.? Following are the main functions of the heart:\tOne of the primary functions of the human heart is to pump blood throughout the body.\tIn the process, the human heart also aids the body’s transport system – blood, by delivering oxygen, hormones, glucose etc to various parts of the body.\tThe heart also ensures that adequate blood pressure is maintained. Heart pumps the blood into our body |
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| 59749. |
What is lymph?state two function of lymph. |
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Answer» The liquid which circulates and carries materials in the lymphatic system is called lymph. Two functions of lymph are follows: 1.Lymph protects the body by killing the germs drained out of the body tissues with the help of lymphocytes contained in the lymph nodes , and making antibodies. 2.Lymph helps in removing the waste products like fragments of dead cells,etc. Lymph is a fluid containing infection fighting wbc throughout the body and function is it transport wbc to and from the lymph nodes into the bones one more lymph is responsible for the removal of interstitial fluid from tissues |
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| 59750. |
How do metal carbonates and metal hydrogencarbonates react with acids |
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Answer» The acid react with metal car bonate and metal hydrogen carbonate to produce salt water and carbon dioxide Example_2hcl+na2co3=2nacl+h2o+ co2Hcl +nahco3=nacl+h2o+co2 The reaction with metal carbonates and hydrogen carbonates limestone, chalk and marble are different forms of calcium carbonate. Acids react with metal carbonate and hydrogen carbonate to produce corrosponding salt,carbon dioxide and water |
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