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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.
| 5201. |
Homo genous |
| Answer» Mixtures which have uniform composition throughout are called Homogeneous Mixture. For example – mixture of salt and water, mixture of sugar and water, air, lemonade, soda water, etc.Mixture of salt in water is an example of homogeneous mixture. In this mixture, the boundary of salt and water cannot be differentiated. When a ray of light is passed through the mixture of salt and water, the path of light is not seen. | |
| 5202. |
What is difference between inertia and newton \'s first law of motion. |
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Answer» According to Newton\'s first law of motion if a body is in rest will remain at rest and if a body is in motion will remain in motion until or unless an external force is not applied.Inertia is a property of body by which a particular body resists to change its state of motion newton\'s 1st law describes that any body in rest it tends to in rest and any body in motion it tends to in motion.But inertia is the property of tendecy to being continued in that state. |
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| 5203. |
What is atomic number of carbon |
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Answer» 6 6 6 Atomic no. Is 6 and molar mass is 12 Simple,6 |
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| 5204. |
Mass is ----------- quantity and weight is ------------ quantity |
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Answer» Mass is scalar quantity and weight is vector quantity Scalar vector Weight is vector quantity Mass is scalar quantity and weight is scalar quantity Relative and absolute |
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| 5205. |
Proton discovered by |
| Answer» Ernest Rutherford | |
| 5206. |
How many megapixels have our eye? |
| Answer» There are 576megapixel in our eyes | |
| 5207. |
12 g of oxygen gas |
| Answer» | |
| 5208. |
Space around the nucleus where the probability of finding electron is maximum is called |
| Answer» An atomic oribital is defined as the three dimension region of space around the nucleus | |
| 5209. |
What is the theorm of sulphur oxide |
| Answer» It is a chemical formula is SO 2It is toxic gasBurnt match smell Other Names Sulphurorous anhysrieaseSulphur (4) Oxide | |
| 5210. |
What is the international system of namimg the eliments |
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Answer» It\'s International Union of Pure and Applied Chemistry(IUPAC) International union of pure and applied chemistry( IUPAC ) Binomial nomalcleature |
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| 5211. |
Name two categories of pure substances |
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Answer» Metal and non metal Matel and non matel |
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| 5212. |
in our body how many muscles are there |
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Answer» 700 muscles The muscular system is an organ system, involved majorly in the movement of the body. There are about 700 muscles that are connected to the bones of the skeletal system, which roughly half make up the human’s body weight. Every muscle is a different organ made of skeletal muscle tissue, blood vessels, nerves, and tendons. |
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| 5213. |
What is 1 cm = |
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Answer» 1cm = 10 mm 10 mm |
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| 5214. |
Define thrust and pressure |
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Answer» The force acting perpendicular to the surface of the object is called thrust. S.I. unit of thrust is Newton.Force per unit area is called pressure.S.I. unit of pressure is Pascal thrust - trust is a type of force which is exerted by a a body perpendicularly. Thrust is a force therefore the SI unit of thrust is Newton.pressure - pressure is defined as a thrust per unit area the SI unit of pressure is Newton per metre square or Pascal . pressure = thrust /area. .... Pressure is defined as thrust per unit area See lesson gavitional |
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| 5215. |
Is plants are parasytic . why they depend on water so why are they called parasytic???? |
| Answer» | |
| 5216. |
Naphthalene balls disappear with time without leaving any solid |
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Answer» Naphthalene balls sublime (change into gas) quickly without leave any solid Naphthalene balls are sublime substances the substances which convert directly from solid to gas by absorbing the heat from surrounding after few minutes and vice versa of it from gas to solids by absorbing the heat from surrounding without leaving any solid substance after few minutes does naphthalene balls disappear with time without leaving any solid substance Due to sublimation as naphthalene balls sublimes at room temperature |
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| 5217. |
A element X which valency is 3. Write the chemical formula of its oxide |
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Answer» X²O³ X2O3 X |
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| 5218. |
Name the two types of mixture |
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Answer» Homogeneous and homogeneous mixtures \xa0A mixture is a combination of two or more substances (elements or compounds) which is not done chemically.\xa0Mixtures are two types Homogeneous Mixtures and Heterogeneous mixtures.Homogeneous Mixtures: A Homogeneous mixture has a uniform composition of its components throughout its mass. It does not have visible boundaries of separation between the various components. For example a sugar solution or a salt solution.\xa0Heterogeneous Mixtures: \xa0A Heterogeneous mixtures does not have a uniform composition throughout its mass also it has visible boundaries of separation between various components. For example mixture of sand and water. |
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| 5219. |
A element X which valency is 3. Name the element |
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Answer» Aluminium (Al) There are many elements whose valency can be 3.. But the most common ones are aluminium (al^3+) , promethium etc |
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| 5220. |
What is difference between an atom of hydrogen and a molecule of hydrogen |
| Answer» A hydrogen atom has only one atom of hydrogen and may not have independent existance but a Hydrogen molecule has two atoms of Hydrogen which has stable existance. Similarly all unstable atoms and elements have more than one atom. | |
| 5221. |
How humidity and wind speed affect rate of evaporation |
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Answer» welcome and wind : when wind speed increases , rate evaporation also increases. Humidity:when the humidity of air is low ,evaporation rate is increased.more humidity , less evaporation |
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| 5222. |
Difference between gravitation and gravitatinal constant g |
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Answer» \tGravitation Constant (G)Gravitational acceleration (g)Its value is 6.67×10-11Nm2/kg2.Its value is 9.8 m/s2.It is a scalar quantity.It is a vector quantity.Its value remains constant always and everywhere.Its value varies at various places.Its unit is Nm2/kg2.Its unit is m/s2.\t Gravitation is not fixed it changes from place to place. Like on the equator the gravitation force is 0 while on the poles it is high.Gravitational constant g is fixed. |
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| 5223. |
What is the relation between capital G and small g¿¿?? |
| Answer» G stands for Newton\'s universal gravitational constant, whereas g stands for the acceleration due to gravity at a certain point.G =\xa06.67300 × 10-11\xa0N.m2.kg-2.\xa0G is a constant throughout space and time.g = 9.8 m.s-2. g is a variable quantity.G is a scalar quantity whereas g is a vector qualtity.\xa0\xa0(According to Newton\'s law of universal gravitation the force of attraction between two bodies is given by F = GMm/r2, where the symbols stand for their usual well known meanings. Also the weight of a body of mass m is F = mg.So mg =\xa0GMm/r2,\xa0or g = GM/r2g is a constant at a given location, which depends upon M and r.) | |
| 5224. |
How reproduction in plant and animals is happend |
| Answer» Reproduction in plants is mainly done by budding and binary fission.Reproduction in animals is done sexually. | |
| 5225. |
Why do we need periodic table |
| Answer» to understand easily | |
| 5226. |
How many bone in our body |
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Answer» No there is 300 born in a new born baby and 206 in an adult 206 in adults WRONG........There are actually 305 bones in an average new born babies and 206 in adults....??? Right 270 in birth and 206 in adult |
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| 5227. |
What are xerophytes |
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Answer» \xa0These plants grow in dry conditions where water is limited. In dry regions all plants not con\xadfined to the sides of streams or lakes are considered xerophytes whereas in the regions of high rainfall, xerophytes would likely be represented only by some shallow-rooted plants in light sandy soils, by the vegetation on dry hill-tops and the cryptogamic flora of lichens, algae and mosses. A plant which needs very little water |
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| 5228. |
What is the recruitment of cells to an infected part by the active immune system called |
| Answer» Immunity | |
| 5229. |
Type of axexual reproduction |
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Answer» \tFission: In the process of fission a unicellular organism split to form two or more new organism.\tBudding : In budding a small part of a body of parent organism grows out as a bud which then detaches and become a new organism.\tFor Example: Hydra, yeast reproduce by budding.\tSpore formation: In spare formation, the parent plant produces 100 of microscopic reproductive units called “spores” with in the spore case. When the spore case burst, then the spores spread into air. When these air borne spores land on food or soil, under favorable condition they germinate and produce new plants for example: Most of the fungi such as Rhizopus ( bread mould) ,mucor, bacteria, non-flowering plants, ferns and mosses.\tRegeneration: The process of getting back off full organism from its body part is called regeneration. For example simple animals like Hydra and Planaria show regeneration.\tFragmentation: The breaking up of body of simple multicellular organism into two or more fragments or maturing, each of which subsequently grows to form a new complete organism is known as fragmentation.\tVegetative Propagation: In vegetative propagation new plants are obtain from the parts of old plants (stem, leaves, or root) without the help of any reproductive organ. Binary fission |
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| 5230. |
An electric heater is rated 1500w how much energy does it used in 10 hours? |
| Answer» Given:Power=1500W=1500/1000=1.5kWtime=t=10hours.Energy=Power x t=1.5 X 10=15kWhHence , the energy consumed by the heater in 10h is 15kwH | |
| 5231. |
What is chrophylll |
| Answer» The green pigment which is present in leaves and this pigment prepare glucose in leaves | |
| 5232. |
What does tetra stands for ? Think , it is very easy basic concept |
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Answer» It stands as 4 atoms Tetra stands for more than 3 atoms of an element Tetra pack |
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| 5233. |
Which particle is fastet than the speed of light and who discovered it ?? YOU SHOULD KNOW THIS? |
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Answer» Feredick reines discovered neutrino Who discovered it Neutrino |
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| 5234. |
How to find valency number |
| Answer» We need to complete octate(8 electrons in outer orbit) of each atom to make it ion(except first five elements they need to completed duplate).Atom can release or gain only 3 electrons.e.g - magnesium(mg) whose atomic no.=12 2nd 1st and 2nd orbit is complete 3rd has just two atoms so it needs to release 2 electrons so it\'s valency is 2plus | |
| 5235. |
What is formal charge? |
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Answer» The formal charge over an atom of a polyatomic molecule or ion is the difference between the valence electron of that atom in the elemental state and the number of electrons assigned to that atom in Lewis structure.Mathematically, it can be expressed by following formula:F.C. = [Total no. of valence e– in free state] – [total no. of e– assigned in Lewis structure]F.C. = [Total no. of valence e– in free state] – [total no. of non-bonding pair e– (lone pair)] – 1/2 [total no. of bonding e–]The factor of ½ is attached to the no. of bonding e– because bonding e– is shared between two atoms. Patanahi |
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| 5236. |
How to calculate value of g |
| Answer» To calculate the value of g ....u have to put the value of G...R...and M....in g=GxM/R square.......it will come out 9.8 m/s square | |
| 5237. |
Define. HIERARCHY |
| Answer» | |
| 5238. |
Flotation chapter note |
| Answer» | |
| 5239. |
Define the term tissu |
| Answer» A tissue\xa0is a group of cells that have a similar structure and act together to perform a specific function.\xa0Different types of tissues can be found in different organs. In humans, there are four basic types of tissues:\xa0\tEpithelial tissues\tConnective tissues\tMuscular tissues\tNervous tissue tissues | |
| 5240. |
Why do we fall ill (science) |
| Answer» 1st read the chapter, then only u can understand | |
| 5241. |
Mention the values shows by nita |
| Answer» | |
| 5242. |
What will happen if electrones of an atom combines with it\'s neucleas????? |
| Answer» It will never happen bcoz it revolves in discrete orbits.and if it happens then the atom will not exist | |
| 5243. |
Write a short note on disease caused by pathogens |
| Answer» तबदक्ष | |
| 5244. |
What is Methogens,Thermoacidophiles,Halophiles |
| Answer» | |
| 5245. |
What is cyanobactaria ? |
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Answer» The class test is suspended for sat.on 3 .11. 2018 Bacteria which lives in the roots of cycas plants nd converts nitrogen into nitrates |
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| 5246. |
What are berzelius atomic symbols |
| Answer» For example, carbon would be denoted as C and oxygen as O. If elements had the same first letter, such as gold ( aurum ) and silver ( argentum ), Berzelius decided that the symbol would be the first two letters of the name: Thus, gold would be known as Au and silver as Ag. | |
| 5247. |
What is adese |
| Answer» | |
| 5248. |
What is the simple tissue |
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Answer» It is a type of Permanent tissue. It is Divided in 3 parts : Parrenchayama, Scalenchyama and Collenchayama It is a type of parmanent tissue .Its cells are differentiated cell and all the cells are same and regular Simple tissue is those type of tissue which is formed by only one type of the cell. Please give me answer |
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| 5249. |
In which year Lavoisier given law of conservation of mass |
| Answer» In year 1774 | |
| 5250. |
What is the relationship between commercial unit and SIunit of energy |
| Answer» Commercial unit of energy in 1 kWh. One kilowatt hour is the amount of energy consumed by an agent in one hour working at a constant rate of one kilowatt (i.e. at the rate of 1000 J in one second).\xa0SI unit of energy is joule.1KWh = 1kW × 1 h= 1000W × 1 h= 1000 (J/s) × 3600 s= 3600000J= 3.6 × 106 J | |