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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.
| 56051. |
What is the dot structure of methene |
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Answer» methne hota bhi hai kya jo puch rahi ho H-C=H there is one single bonded hydrogen atom above the carbon atom |
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| 56052. |
By what property magnet creats again its south and north pole after breakin it |
| Answer» | |
| 56053. |
What is trait? |
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Answer» Traits are characters that are inherited by the progeny.\tAcquired traits\tTraits acquired by organisms during their lifetimeNot passed from one generation to another\t\t\tInherited traits\tTraits controlled by genesPassed on from one generation to the next\t\tSome examples:Muscles of weight-lifters, scars, length of hair are examples of Acquired traits The first elenentandlast element is equal to middle element is called trait |
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| 56054. |
Give defination and show ohm,s law by graph |
| Answer» According to ohm\'s the current flowing through a conductor is directly propotional to potential diffference across its ends provided physical condition are save. Sorry,I unable to draw graph in this app and send you. | |
| 56055. |
What is allotrophs of carbon |
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Answer» Graphite,diamond and buckministerfullernce Graphite diamond and buckministerfullernce |
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| 56056. |
Uses of convex mirror in Daily life |
| Answer» For car bus etc to see backwart object | |
| 56057. |
Electric Pawer |
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Answer» The rate of production of heat in a resistor is called electric power The rate of a |
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| 56058. |
What is human skin |
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Answer» It work as a recptor Human skin is the outer covering of the body of humans (insaan) |
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| 56059. |
State Arrehenius concept of acid and base. |
| Answer» Uu | |
| 56060. |
Why do we use bifocal lens? |
| Answer» A bifocal lens is created with two different areas of vision correction, which are divided by a distinct line that sits horizontally across the lens. The top portion of the lens is used for distance, while the bottom portion of the lens is used for closer vision. Our regular bifocals are flat-top | |
| 56061. |
What are syllsbus of class 9for sessions 2018-19 |
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| 56062. |
Why carbon compounds called organic compounds? |
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Answer» The subject of carbon compounds is called organic chemistry because all known organisms, or living things, are made up of water and carbon compounds Because we get it from earth. |
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| 56063. |
What is the difference between spore formation and regeneration |
| Answer» Regeneration can occur in plants and animals both but sporeformation can occur in only plant | |
| 56064. |
Write three difference between artery and Vein? |
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Answer» There\'s one more point which could be of help:Arteries don\'t have valves since blood pumped with force but veins have valves since to avoid the backward flow of blood Artery: 1. They have thick wall2. They carry blood away from the heart.3. They carry oxygenated blood.Vein: 1. They have thin wall.2. They carry blood to the heart.3. They carry deoxygenated blood |
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| 56065. |
What are syllabus for class 9for sessions 2018-19 |
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| 56066. |
How is the required pH maintained in stomach and small intestine? |
| Answer» By taking antacids and basic food items like milk of magnesia,baking soda | |
| 56067. |
Can only studying by NCERT book of science get me good marks? |
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Answer» No you can got only 80% also solve sample papers or s chand Also solve the previous years board papers Yes Harshit you can definitely score good marks just make sure you should do everything from science ncert by heart . ? N0 |
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| 56068. |
Explain about double circulation |
| Answer» The heart at same time pumps oxygenated blood and receives deoxygenated blood . This is called double circulation | |
| 56069. |
What is the chemical composition of the plaster of paris? |
| Answer» Plaster of Paris is a white colour substance that becomes hard when come in the contact of water. it is prepared from the gypsum by heating it .Chemical name of \'Plaster of Paris\' is \'Calcium sulphate Hemi hydrate\'Formula : CaSO4.1/2H2O | |
| 56070. |
State the function of each 1.cornea2.iris3.pupil4.retina |
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Answer» \tIrish: Irish is made of muscles. They control the size of opening of pupil.\tPupil: Pupil is the round black spot in front of eye. It regulates the amount of light entering the eyes. Pupil works like aperture of a camera. In case of dim light pupil dilate to allow more light to enter the eyes. In case of strong light pupil constrict allowing less light to enter.\tRetina: Retina works like a screen or camera film. Retina is full of light and colour sensitive cells. These cells, upon receiving image send electrical signals to the brain, which processes these information to make a mental image of what we see. The photoreceptor cells in the eye are of two types, viz. rod cells and cone cells. The rod cells are sensitive to dim light. The cone cells are sensitive to bright light and colour. 4.Retina : it receives the light and send the information to the brain. It consists of cones and rods |
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| 56071. |
Examples of corrosion with reaction |
| Answer» The addition of oxygen to a metal substance.Eg : ZN +O² ----> ZNO² | |
| 56072. |
What is bronchus |
| Answer» Singular of brnchi | |
| 56073. |
What is effersevevce |
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| 56074. |
Why C+O2 = Co |
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Answer» C +O2 = CO this reaction take place only when there is incomplete combustion. It is a prac tical |
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| 56075. |
Carbon can reduce copper oxide to copper but not cao to ca.why |
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Answer» Hey mate here is your answer C is a strong reducing agent and can reduce cuo as follows :cuo+c=cu+co |
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| 56076. |
Why life processes are necessary.? |
| Answer» life process are necessary to mantain our life and perform basic progresses in our body to live like respiration,excreation,transportation,reproduction. | |
| 56077. |
What is the difference between Acid, base and salt. |
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Answer» Acids are sour in taste and give H+ ion when dissolves in water ,Acids turns Blue litmus into Red and Bases are bitter in taste and produce OH- ion when dissolve in water, Bases turns Red litmus into Blue and Salts are salty to taste , Salts are produce when Acids react with Bases Acid are Sour in tasteBase are bitter in tasteSalts are salty in taste. |
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| 56078. |
Differentiate between ova and sperm. |
| Answer» Ova is produced by the female ovary but sperm is produced by the male testes | |
| 56079. |
Nutrients |
| Answer» The substances by which we obtain nutrition.. | |
| 56080. |
Momentum is most closly related to |
| Answer» | |
| 56081. |
If you are producer so how much energy will be provide to teritary if 20000 |
| Answer» It is called 10% law .only 10% of energy is transferred to another tropic level.As per your question: if 20000÷10 then it is 2000 will go to the consumer and the remaining will be with the producer for its reproductin, growth etc | |
| 56082. |
What is the mean of +1magnifgation |
| Answer» +1 magnification means that the image formed is virtual and erect and the image and object are on same distance from mirror but in opposite directions and both are of the same height | |
| 56083. |
Construction and working of solar cooker |
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Answer» Construction of a box-type solar cooker: A box-type solar cooker consists of the following components:\tBox (B): This is an insulated metal or a wooden box. It is painted black from inside because black surface absorbs more heat. The box may be provided with four roll-wheels.\tGlass cover (G): A cover made of two sheets of toughened glass held together in an aluminium frame is used as a cover of the box B.\tPlane mirror reflector ®: A plane mirror reflector fixed in a frame is fixed to the box B with the help of hinges. The mirror reflector can be positioned at any desired angle to the box. The mirror is positioned so as to allow the reflected sunlight fall on the glass cover of the box.\tCooking containers ©: A set of containers made of aluminium and blackened from outside are kept in the box B. These containers are also painted black because black surface absorbs more heat.Working: The food is cooked in a shallow vessel of the container. The box has a transparent covering of glass sheet over it. The solar cooker is placed in sunlight and reflector (plane mirror) is adjusted in such a way that a strong beam of sunlight enters the box through the glass sheet. The blackened metal surfaces in the wooden box absorb infra-red radiations from the beam of sunlight and heat produced raises the temperature of blackened metal surface to about 100°C.The food absorbs heat from the black surface and gets cooked. The thick glass sheet does not allow the heat produced to escape and thus, helps in raising the temperature in the box to a sufficiently high degree to cook the food. Teacher did not teach u |
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| 56084. |
When we nearer to the hydrogen gas the fire not burned continuously |
| Answer» Because hydrogen is inflammable | |
| 56085. |
What is olfactory indicaters? |
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Answer» The substance in which add acid or bases and change its colure known as olfactory indicaters Some substances whose odour changes in acidic or basic media (medium) . These are called olfactory indicators.Eg- vanilla,onion,clove(Lóñg) Some substance whose odour changes in acidic or basis nature is known as olfactory indicater.Eg- clove,onion,vanilla. |
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| 56086. |
Which animal give both milk and egg ? |
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Answer» Duck Billed Platypus found in Australia Duck Billed Platypus Platypus |
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| 56087. |
Blood pressure is controlled by which organ in human ?? |
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Answer» It is controlled by medulla oblongota in our brain.... Nerves |
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| 56088. |
Achievment of mendeleev\' s periodic table |
| Answer» Achievements of Mendeléev’s periodic table\telement with a slightly greater atomic mass were placed\tbefore an element with a slightly lower atomic mass with an inverted sequence so as to group the elements with similar properties. For example, cobalt with atomic mass 58.9 was placed before nickel with atomic mass 58.7.\tHe left some gaps in the Periodic Table with the prediction of\texistence of some elements that were not discovered at that time.\tHe named the future elements by prefixing a Sanskrit numeral, Eka (one) to the name of preceding element in the same group.\tFor instance, scandium, gallium and germanium, discovered later, have properties\tsimilar to Eka–boron, Eka–aluminium and Eka–silicon, respectively.\tNoble gases like helium (He), neon (Ne) and argon (Ar) were discovered\tlater as they are present in exceptionally low concentrations in the atmosphere due to their inertness. | |
| 56089. |
Kya reflection ka chapter 10board me h ya nhi |
| Answer» Ya it is included already from pervious years | |
| 56090. |
What is the raw materials for photosynthesis? |
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Answer» Carbondioxide,water,sunlight and chlorophyll Carbon dioxide and water |
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| 56091. |
How we get a child |
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Answer» Bhola mat ban tujhe bhi pata hai By the process of reproduction |
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| 56092. |
How formation of fruit and seeds takes place in plants |
| Answer» By the process of fertilisation | |
| 56093. |
Is anyone student of RC 10TH here |
| Answer» Yes | |
| 56094. |
What is the function of bowman\'s capsule? |
| Answer» Bowman\'s capsule is a cup like structure formed by the proximal end of the nephron.The lumen of Bowman\'s capsule extends through the renal tubule. Bowman\'s capsule encloses a tuft os capillaries called as glomerulus.Bowman\'s capsule and glomerulus have semipermeable walls. The glomerulus, is a tuft of capillaries contained in Bowman\'s capsule. The water and dissolved substances (wastes and useful) are filtered into the Bowman\'s capsule and from here they are filtered into the tubule. Thus, both the structures act as filtering apparatus. | |
| 56095. |
What is aquea regia which metal dissolve on it |
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Answer» Gold ?? Aqua Ragia is a mixture of 1 part of Nitric acid (HNO3) and 3 part of Hydrochloric acid (HCl) . It can dissolve hardest metal even gold and platinum . It is also called royal water.It is freshly prepared by mixing con. HCL& con. HNO3 in the ratio of 3:1It can dissolve gold and platinum. ? Gold |
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| 56096. |
Why sunlight appears white? |
| Answer» At noon, the sun is overhead and the light coming from the sun travels a relatively shorter distance through the atmosphere to reach the earth. In this case the blue light is not sacttered much. As the light coming from the overhead sun contains almost all its compont colours in the right proportion, the sun appears white to us at noon. | |
| 56097. |
Explain the function of bladder |
| Answer» The bladder is connected to the kidneys by two long tubes called ureters. When urine is produced by the kidneys, it travels down the ureters to the bladder, where it is stored. The bladder has four layers.The other parts of the bladder are located at the bottom of the sack. An opening at the bottom of the bladder is connected to the urethra. A circular, muscular sphincter pinches tight to keep the opening and the urethra from leaking urine. When a person urinates, the detrusor muscles contract to squeeze the urine out of the bladder while the sphincter relaxes to open the opening of the bladder and urethra. The opening at the bottom of the bladder empties urine into the urethra, where it then empties from the body. | |
| 56098. |
What do you mean by chlor-alkali process? |
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Answer» Not for NaOH it is used for manufacturing NaCl... It is the process in manufacturing of NaOH. |
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| 56099. |
What is soda ash? |
| Answer» Washing soda is also called soda ash | |
| 56100. |
Which of the following is a conventional source of energy - renewable or non-renewable? |
| Answer» Non renewable | |