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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.
| 63951. |
What is the difference between reflex arc and reflex action |
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Answer» Reflex action is an immediate action taken by organism without its will and it is controlled by spinal cord.whilereflex arc is pathway followed by nerve to carry the impulses Readghjvbnkjh |
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| 63952. |
How is iron protected even if zinc covering breaks |
| Answer» | |
| 63953. |
How will you show that inner surface of a curved spoon acts as a cocave mirror? |
| Answer» You will get an inverted image and concave mirrors usually produce real and inverted images. | |
| 63954. |
Don bosco school se koe padta hai plese batana jarur |
| Answer» | |
| 63955. |
If 5 a current is passing through 2 omh resistance for 30 min .find energy? |
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Answer» 90 Kj 90000J |
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| 63956. |
Should the resistance of ammeter high or below?Give reasons |
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Answer» Resistance is always >1 It haslow resistance because ammeter is always connected in series. If resistance is high in it then most of the current is eaten by the it result that appliance do not work properly |
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| 63957. |
What is fedralism |
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Answer» A federalism is a form of government in which power is divided into different levels of the government. A system in which some power is taken by the central and state govn .and gives to the local govn. A system of government in which power isdivided into central authority and its many constitution unit is knowns as fedralism |
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| 63958. |
When sulpur react with oxygen what it is form |
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Answer» SO2; SO3 ; SO4 Sulphur oxide Sulphur dioxide Sulphur oxide |
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| 63959. |
Name the chemical property of a material whose symbol is omega |
| Answer» Resistance | |
| 63960. |
What do you mean by harmones write the charaterstics features of harmones? |
| Answer» Harmones are chemical substances that help in control and coordination in our body.it,s features see in book | |
| 63961. |
Light reflection and refraction,10th lesson |
| Answer» | |
| 63962. |
List the major stes involved in formation of urine |
| Answer» filteration\'reabsorption and filteration are involed in formation of urine | |
| 63963. |
What is the resistivity of conducter |
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Answer» It is metallistic property of conductor on which resistance is depend. Resistivity is the resistance of a conductor of unit length and having unit cross section area. Resistivity is the nature of conductor though with it can oppse the flow of current Resistivity of conductor is to avoid the flow of current through conductor in copper 1.77×10^-8 |
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| 63964. |
What are strong acids and weak acids |
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Answer» Strong acid are those acid which give more hydrogen ion and less hydroxide ion .Weak acid are those base which give h ion but in very less amount Strong acids are the one which when dissolved in aq. Solution of water complete ionisation takes place whereas on the other hand if we dissolve weak acid in aq. Solution partial or no ionisation takes place Strong acids are strong which have more H+ ions and weak acids are weak which has less H+ ions. Strong acids are strong and weak acids are weak when we drop a drop into it weak acids turn into pink |
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| 63965. |
What is magnitude? |
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| 63966. |
Schematic diagrams of double circulation |
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| 63967. |
What are the advantages of non biodegradable waste |
| Answer» Biodegradable waste is decompose into harmless material | |
| 63968. |
What are the properties of ionic compounds also explain them |
| Answer» Properties of ionic compounds are as follows.\tIonic compounds are solids and hard due to the strong attracting force between the positive and negative ions. These compounds are generally brittle and break into pieces on application of pressure.\tIonic compounds have high melting and boiling points because a application of significant amount of energy can break the strong inter-ionic attraction.\tIonic compounds are soluble in water but insoluble in solvents like kerosene, petrol, etc.\tConduction of electricity through a solution is possible when there is movement of charged particles. Ionic compounds in the solid state do not conduct electricity because movement of ions in the solid is not possible due to their rigid structure.\tA solution of an ionic compound in water contains ions, which move to the opposite electrodes when electricity is passed through the solution. Ionic compounds conduct electricity in the molten state as in the molten state the electrostatic forces of attraction between the oppositely charged ions overcome due to the heat. Thus, the ions move freely and conduct electricity. | |
| 63969. |
Ehat is plaster of paris ? Its compoud name ? |
| Answer» Plaster of paris is a hydrated salt of calcium sulphate. CuSo41/2H2O. | |
| 63970. |
Why should we conserve fotest and wildlife |
| Answer» Naturally occurring plants and animals are the flora and fauna of the forests. Forests are biodiversity hotspots. The loss of forests and wild life leads to the ecological imbalance. Hence, it is important to conserve forests and wild life. | |
| 63971. |
Defind atomic mass |
| Answer» F2f | |
| 63972. |
What is anallotrope? |
| Answer» Allotrope are the compounds whose chemical properties is same but physical properties are different . For example - allotrope of carbon are diamond and graphite . They both have same chemical formula \'c\' but thier physical appearance is different . ? | |
| 63973. |
What is hydronium ions |
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Answer» ❤️ ??\u200d♀️ they are the h positive ions. H30+ ?? Hydronium is the common name for the aqueous cation H₃O⁺ |
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| 63974. |
Fe+H2o=? |
| Answer» 3Fe + 4H2O → Fe3O4 + 4H2 | |
| 63975. |
define:-solonoid,magnetic field lines,quarks |
| Answer» The solenoid is a long cylindrical coil of wire consisting of a large no. of turns bound together very tightly. Solenoid is a coil of a number of turns of insulated copper wire closely wrapped in shape of a cylinder. Solenoid behaves like North Pole and the other end behaves like the South Pole. Magnetic field lines inside the solenoid are in the form of parallel straight lines.The path along which north pole moves in a magnetic field is called magnetic lines of force or magnetic field line. | |
| 63976. |
Write methods to prevent rancidity |
| Answer» 1 By Adding antioxidants. 2 Keeping food in air tight containers. 3 Replacing Air by nitrogen. 4 Refrigeration | |
| 63977. |
This app is provided by cbse |
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Answer» I think no No not think so No |
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| 63978. |
how to balance equation NAOH + Al ----- NaAlO2 +H2 |
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Answer» Al + NaOH +H2O ~ NaAlO2 +H2 Your reaction is incomplete 4NaOH +. 2Al =. 2NaAlO2+2H2 |
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| 63979. |
Difference between an acid and base |
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Answer» Any substance which release H ion in aqua sol. is an acid AndAny substance which release hydroxide ions in aqua sol. is a base Acids are those substances which are sour in taste and give hydronium ion when dissolved in water |
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| 63980. |
Why blood is called red river of life. |
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Answer» Blood is liquid and red just like a red river. And for human without blood there is no life because there is nothing to transport nutrients and oxygen to the body cells. Hence blood is the red river of life. Because the amount of water in blood is more so it can flow eaisly andddd the red colour is because of hemoglobin |
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| 63981. |
what are phytoharmones name any three phytohamone and their functions |
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Answer» Hormones present in plants are known as phytohormones.phytohormones are of four types - 1)auxins2)gibrellins3)cytokinin4)absisic acid The hormones present in plants and are responsible for growth excretion etc. Three phytohormones are 1.cytokinin responsible for cell division. 2auxin responsible for growth of tip of plants. 3 absisicacid responsible for falling of leaves |
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| 63982. |
mention three kind of cell present in blood .write one function of each |
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Answer» Red blood chromosomes White blood chromosomes Platelates RBC , WBC and platelets Red blood cell. White blood cell. Platelets. |
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| 63983. |
What is Ohm\'s law ? |
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Answer» It is a constant physical quantity, in which Pd is directly proportional to current flowing in that conductor equal to constant Same as above According to ohm if in any conducter the current is flowing & if we kept its physical conditions constant then current flowing in that conducter will be directly proportional to pd of that conducter. |
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| 63984. |
What do you mean by water shed management system ? |
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| 63985. |
Name the hormones secreted by pituitary gland also write function? |
| Answer» Growth hormone helps for grwth of body | |
| 63986. |
Why poles of a magnet cannot be separated |
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| 63987. |
Why the end of freely suspended maget always point towards north-south direction? |
| Answer» It is because earth is also behave like magnet | |
| 63988. |
Describe the central nervous system in human brain |
| Answer» Nervous system in which nerves arisses from the brain to parts of the body is known as central nervous system. Cranial nerves > spinal cord > motor nerve > effector | |
| 63989. |
Why carbon has so many compounds?? |
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Answer» Because carbon has the property of tetravalency. It can gain the electron and also loss it. Because of its valancy that is four and of its small size as compared to sillicon this is the reason that carbon has so many compounds Compounds of carbon are defined as chemical substances containing carbon. More compounds of carbon exist than any other chemical element except for hydrogen. Organic carbon compounds are far more numerous than inorganic carbon compounds. In general bonds of carbon with other elements are covalent bonds. Carbon is tetravalent but carbon free radicals and carbenes occur as short-lived intermediates. Ions of carbon are carbocations and carbanions are also short-lived. An important carbon property is catenation as the ability to form long carbon chains and rings. |
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| 63990. |
DefIine Tropic level ? properly |
| Answer» The trophic level of an organism is the position it occupies in a food chain. A food chain is a succession of organisms that eat other organisms and may, in turn, be eaten themselves. The trophic level of an organism is the number of steps it is from the start of the chain. A food chain starts at trophic level 1 with primary producers such as plants, can move to herbivores at level 2, predators at level 3 and typically finish with carnivores or apex predators at level 4 or 5. The path along the chain can form either a one-way flow or a food "web". Ecological communities with higher biodiversity form more complex trophic paths. | |
| 63991. |
Why diamond is a hardest natural substance? |
| Answer» ,Diamond is a solid form of carbon with a diamond cubic crystal structure. At room temperature and pressure it is metastable and graphite is the stable form, but diamond almost never converts to graphite. Diamond is renowned for its superlative physical qualities, most of which originate from the strong covalent bonding between its atoms. In particular, it has the highest hardness and thermal conductivity of any bulk material. Those properties determine the major industrial applications of diamond in cutting and polishing tools and the scientific applications in diamond knives and diamond anvil cells. | |
| 63992. |
100/3=0.3 |
| Answer» It is not possible mathmatically. | |
| 63993. |
How to determine that whether how strong or weak a given acid or base is |
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Answer» By pH scale By Ph value To determine how strong or weak an acid is by using the universal indicator pH paper |
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| 63994. |
what is a vascular cambium |
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| 63995. |
What is pulse |
| Answer» It is the no. Of atrical blood pressure which happens due to heartbeat.For a normal person it is 72 per minute | |
| 63996. |
What is reflection explain using diagram give its laws |
| Answer» The bouncing back of light from a reflecting surface is known as reflection of light.There are two laws of reflection:-1)angle of incident is always equal to angle of reflection 2)incident ray,normal,reflacted ray,angleof incident,angle of reflection and point of incidence all lie on the same plane | |
| 63997. |
it is given in S CHAND of physics.It is numerical of"The Human Eye". Page No.278 |
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| 63998. |
What is the common between convex lens and concave lens |
| Answer» CONCAVE:-A spherical mirror whose Reflecting surface is termed Inwards is called a concave Mirror. CONVEX:-A spherical Mirror whose Reflecting outwards is called a convex Mirror | |
| 63999. |
One industrial application of rancidity |
| Answer» Answer de | |
| 64000. |
What is eurochrome? |
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Answer» hey can you tell where you red it? I dont know eurochrome Erichrome means complexotheric indicator is uses and chemical formala is c20h12n3o7sna do you mean urochrome? |
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