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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.
| 9951. |
Why do we see the water droplets on the outer layer of glass when we keep cold water |
| Answer» Due to the process of condensation | |
| 9952. |
Water is colourless? And air is also colourless but be can see water air is not seen? why? |
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Answer» If air is colourless then why do we see smoke from Cars? Sry vijayan but we can store air or gases as we store co2 remember Because water has volume but air does not have. We can store water but we can\'t store air..... |
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| 9953. |
What is the chemical symbol of tungsten |
| Answer» W | |
| 9954. |
Diagram of eukaryotic nucleus |
| Answer» | |
| 9955. |
What is the formula for concentration of solution? |
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Answer» And and mass by volume percent of a solution is equal to mass of solute by volume of solution in 100 and volume by volume percent of a solution is equal to volume of solute by volume of solution 100 and mass by mass percent of a solution is equal to mass of solute by mass of solution in 100 Mass by mass percent of a solution is equals to mass of solute by mass of solution into 100 Concentration of solution =Amount of solute /Amount of solvent ORConcentration of solution=Amount of solute/Amount of solution Concentration of solution=mass of solution/massof solute x 100 |
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| 9956. |
A=? |
| Answer» A=B | |
| 9957. |
What is the difference between boiling and evaporation |
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Answer» Boiling can occur only at the boiling point of a substance but evaporation can occur at any temperature. Boiling is a manmade process and it is fast process Evaporation is a natural process and it is slow process |
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| 9958. |
What is tje difference between distillation and fractional disttilation |
| Answer» Fractional distillation:\xa0Fractional distillation is the process of separation used mainly to separate liquid mixtures based on difference in boiling points.Fractional distillation is used only when the difference in boiling points of liquid components is less than 25⁰C.Ex: Separation of natural gas, kerosene oil…etc from petroleum done by using fractional distillation.Distillation: Simple distillation also used to seperate the liquid mixtures. But it can be used only when\xa0the difference in boiling points of liquid components is greater than 25⁰C. | |
| 9959. |
Name the factors which decides the movement of materials across the plasma membrane? |
| Answer» Osmosis is a factor decides the movement of water across the plasma membrane. | |
| 9960. |
A girl has 60kg mass |
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Answer» Yes Mass* No a human cannot have. The statement is wrong. A will have 60 weight instead of mass. Yes a girl has 60 kg mass |
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| 9961. |
What is the another name of epithelial tissue |
| Answer» Epithelium | |
| 9962. |
Please show how to do numerical of gravitation chapter |
| Answer» By usingformula 1.v=u+gt 2.h=ut+1/2gt 3.v^2=u^+2gh | |
| 9963. |
What is dermnal tissue |
| Answer» | |
| 9964. |
Define sublimetion |
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Answer» Direct change of solid to gas or gas to solid is calles sublimation The change in stste of solid to gas or vise versa , without changing into its liquid form is called as sublimation. The change of state of solid to gas without changing to liquid state is called sublimation |
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| 9965. |
What is the dispersion phase and dispersing medium in fog and cheese? |
| Answer» Fog= Dp=liquid.DM=GAS | |
| 9966. |
I did not understand the lesson of physics can you please explain me |
| Answer» Which lessons | |
| 9967. |
What did you know about \'fluid mosaic model of plasma membrane \' |
| Answer» | |
| 9968. |
What is cemical eqation and defineThe qusetion |
| Answer» | |
| 9969. |
What is interia? |
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Answer» The inability of any object to change its state of rest or of Uniform motion along a straight line is called inertia. Property of any object due to which the object opposes any change in its state of rest or motion The tendency of rubstance that resist any change in its state of motion or rest is called inertia. Inertia is like a hidden force that opposes force on opposite side of motion The tendancy to oppose the change in motion is called inertia The tendency of the body to resist any change in its state is K/A(known as) inertia. |
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| 9970. |
Prove v square = u square +2as |
| Answer» | |
| 9971. |
What is a nutrients |
| Answer» | |
| 9972. |
What is a sedimenteri |
| Answer» Sedimentary rocks are formed by the deposition and subsequent cementation on the material at the Earth’s surface within the bodies of water. These rocks are formed by four ways – deposition of weathered remains of other rocks, accumulation and the consolidation of sediments, deposition of the results of biogenic activity and lastly from precipitation from solution. Some common types of sedimentary rocks – limestone, chalk, clay, sandstone, and shale. These rocks cover 75% of the total earth’s surface. | |
| 9973. |
If we put some acetone,petrol,etc. On our hand , we feel cool .Why???????? |
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Answer» This is due to latent heat present in petrol or acetone If we put some acetone or petrol on our hand , it evaporates. During evapouration, particles of liquid absorb energy from the surroundings or the surface of the hand to compensate for the loss of energy, making the surrounding cool. Hence our hand feel cool. if we put acetone or petrol on our hand we feel the surface of hand cool because it gains energy and evaporates .thus,this makes surface cool if we put some acetone or petrol we feel cool because when it evapourates and our body has heat in it so we feel cool |
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| 9974. |
Whate will happen when dilute H2 SO4 is added to a mixture of iron feeling |
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Answer» FeSo4+H2 fe so4 + h2 |
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| 9975. |
Whate prequation are to be taken while preparing a true solution |
| Answer» Precautions\tUse test tube holder for heating/boiling of water.\tDo not waste the chemicals and distilled water. Use it wisely.\tAlways stir the contents in the test tube nicely and gently.\tUse only distilled water to make solutions. | |
| 9976. |
What change in colour is observed when copler sulphate is heated |
| Answer» No colour i think | |
| 9977. |
How we will make numricles |
| Answer» | |
| 9978. |
Mention two ways to liquify atmospheris gases |
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Answer» By increasing pressure and decreasing temperature Increase pressure and decrease the temperature |
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| 9979. |
Write the intercointerconverstion of three state matter (with diagram and defination) fif1.9 |
| Answer» Any state of matter can be converted into other state with the help of temperature or pressure. Different terminology for the Interconversion of states of matter is given below:(i) Solid to Liquid: Fusion(ii) Liquid to Gas: Vaporisation(iii) Gas to liquid: Condensation(iv) Liquid to Solid: Solidification(v) Solid to Gas: Sublimation(vi) Gas to Solid: Sublimation | |
| 9980. |
What is the function of mitochondria |
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Answer» Mithochondria is known as powerhouse of cell. And also helps in formation of lysosomes synthesise energy in form of ATPand release it whenever needed |
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| 9981. |
How electron are around the nucleus |
| Answer» Due to centrifugal force. | |
| 9982. |
What is homogenens mixture |
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Answer» Homogenens means when mixture is dissolved and you cannot see it be nacked eyes .Example -salt +water . A mixture which has a uniform composition throughout is homogenous mixture Mixtures which we cannot see with our naked eyes A solution is a homogenens mixture |
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| 9983. |
What type of mixtures are separated by the technique of crystallisation? |
| Answer» Salt from ocean water | |
| 9984. |
What do you mean by Newton 1st low of motion |
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Answer» According to this law "the rate of change of linear momentum is directly proportional to the applied unbalanced force applied on a body in the direction of net force." It states that an object will continue it\'s state of rest or motion until and unless compelled by an external unbalanced force... Remember:A definition of any law starts with \'It states that\' First ans is good for all readers A object continue to be in the state of rest or uniform motion until a external unbalanced force is applied An object remains in a state of rest or of uniform motion in a straight line unless compelled to change that state by an applying force. |
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| 9985. |
Why nepathlen ball disappear after some time |
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Answer» Because they are volatile substance and evaporates easily at normal temperature naphthalene is a world title solid organic compound which can undergo sublimation the solid naphthalene balls keeps playing slowly and after 1 written time the next line balls subliminal completely forming napkin papers and hence they disappear without leaving any solid news Because they are volitle substance and evaporates easily at normal temperature . Naphthalene is a volatile solid organic compound which can undergo sublimation. The solid naphthalene balls keep subliming slowly and after a certain time, the naphthalene balls sublime completely forming naphthalene vapors and hence they disappear without leaving any solid residue Because it shows sublimation(Solid - gas) |
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| 9986. |
An astronaut in space is away from his spaceship how can he return to his spaceship |
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Answer» An astronaut can\'t swim in space because there is no air to push against such that he will move forward. But if he throws a heavy object with a large force in the opposite direction in space, an equal and opposite force will act on him (Newton\'s 3rd Law of Motion) and he\'ll move in the other direction, towards the spaceship. Because there is a type of tubular structure is connected to the spaceship which will prevent astronaut from going Easily he will swimm..and will reach the spaceship...???? |
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| 9987. |
Describe the cause of tyndall effect in the forest. |
| Answer» In a forest, there are water particles suspended in the air in the form of water vapor. These particles create a colloidal solution and hence shows Tyndall effect by scattering the light rays. | |
| 9988. |
Air and soil are homogeneous or heterogeneous mixture? |
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Answer» Air is a homogeneos mixer of the gases substances Nitrogen Oxygen and smaller amounts of other substances and soils are heterogeneous mixture because not to Nexus soil sample seal have the precious proportion of its inherent Air is a homogeneous mixture of the gaseous substances nitrogen, oxygen, and smaller amounts of other substances.And soils are heterogeneous mixtures because no two nature soil samples will have the precise proportions of its inherent components |
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| 9989. |
Why some of the leaves may get detached from a tree if we vigorously shake its branch |
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Answer» Due to Inertia of rest This is due to inertia of rest,When we shake branch of tree vigorously, the branch of tree becomes in motion but the leaves tends to remain in rest Due to inertia of rest,and direction. |
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| 9990. |
What is the dispersing phase and dispersing medium in fog and cheese? |
| Answer» Fog:Dispersed phase : LiquidDispersing medium: GasCheese:Dispersed phase: LiquidDispering medium: Solid | |
| 9991. |
difference between solution and suspension |
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Answer» This answer is very right for all readers Solution is a homogenous mixture the size of the solid particles is in the order of 10to the power -7 to 10 to -9 m (nanometer) in diameter. suspension is a hetrogenous mixture in which the solid particles are suspended throughout the mixture. the size of the solute particle lie between 10 to the power minus 5 to 10 to the power minus 3 metre in diameter |
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| 9992. |
Matter and their types |
| Answer» Anything that occupy space and has mass is known as matter. matter has three states 1.solid2.liquid 3.Gas Eg.of matter are table ,chair,ball etc.Everything all around is matter.. | |
| 9993. |
Which tissue is called as middle man |
| Answer» Intercalary | |
| 9994. |
How can we write scholarship exam in my cbse guide app |
| Answer» | |
| 9995. |
What is mitochrondia |
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Answer» Mitochondria has the double layer around it the inner surface of Mitochondria have deep in folds called cristae. It is a site of cellular respiration. It is called SEMI AUTONOMUS CELL because it has its own ribosomes and DNA ( DEOXYRIBONUCLEIC ACID) It is also called powerhouse of cell because the cristae has oxysomes on its body which trap the oxyzen and breaks the stored glucose which produces energy in form of ATP (ADENOSINE TRIPHOSPATE) A cell organelle which stores energy in the form of ATP which is used to bring energy requiring activities of the cell |
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| 9996. |
How much time child take to come outside from stomach |
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Answer» For a perfect mature delivery it is 9month 9days and 9hours 9 months for mature snd 7to 8 months for imature Fnfhchchuccjjcbcbfvct????????????????????????????????????????cjchxhxh gt t?????????????????????????????????????️??????️?????????????????????????????????????????????????????????????????️???️???✨?✨?????????????✨?✨?✨??️???️?️???️?️????????????✨✨?✨?✨?✨?✨?️✨?️??️?????️??????????????????????????????✨✨?️✨?✨??✨✨?✨?️✨?️✨?️??✨✨?✨?✨?✨?✨?✨✨?✨?✨?✨?✨✨?✨?✨?✨✨?✨?✨?✨?✨?✨?✨?️✨✨?️?✨?✨?️✨?️✨??✨?️✨?✨?✨?✨?✨?✨?️✨?️✨✨?️✨?️✨✨?️✨?️✨?️✨?️✨✨?️✨?️✨?️✨✨?️✨?️✨?️✨✨?️✨?️✨?️✨?️✨?️✨✨?️✨?️✨?️✨?️✨?️✨✨?️✨?️✨?️✨?️✨✨?️✨?️✨?️✨?️✨?️✨✨?️✨?️✨?️✨?️✨✨?️✨?️✨?️✨✨?️✨?️✨?️✨✨?️✨?️✨ It took 9 months for a child to come outside from stomach 9 months |
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| 9997. |
What is a matrix of a bone |
| Answer» The deposition of calcium and phosphorus makes the matrix of the bone hard. | |
| 9998. |
What is plasma membren |
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Answer» Plasma membrane is the outer covering of the cell also known as the selectively permeable membrane .it allows only some materials to enter and exit the celland also protects the cell Plasma membrean protect the cell |
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| 9999. |
Why Clouds were does not come down |
| Answer» Because the clouds are too light | |
| 10000. |
Can someone give me the question paper of science??? |
| Answer» | |