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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.
| 64151. |
Why covlent compounds are poor conductor of electricity |
| Answer» A covalent bond is formed between non metal atoms, which combine together by sharing electrons. Covalent compounds have no free electrons and no ions so they don\'t conduct electricity. | |
| 64152. |
How we see |
| Answer» | |
| 64153. |
What is the weight of our mind |
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Answer» 3 pound (1400 G) 3pounds Adult human brain is about 3 pounds |
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| 64154. |
What is the storage capacity of mind? |
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Answer» 2. 5 petabites Infiniteless |
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| 64155. |
What is photochemical reaction with one of its application? |
| Answer» Chemical reactions which take place in the presence of light are called photochemical reactions.Example: Photosynthesis is a chemical reaction in which food is prepared by green plants.Light is necessary for the reaction to take place.Photosynthesis is a photochemical reaction in which the leaves of green plants prepare glucose and oxygen from carbon dioxide and water in the presence of chlorophyll and sunlight.\xa0 | |
| 64156. |
What is the pH value of fresh milk |
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Answer» 6.1443 6 |
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| 64157. |
Give important of :1) - persistance of vision. Any 4 point. |
| Answer» The impression of an object seen by the eye persists on the retina for 1 /16 th of a second, even after the object is removed. If another object is seen before this time, the impressions of the two merge to give us the sensation of continuity. This property of eye is called persistence of vision.\xa0Motion pictures are shown at the speed of 24 or more pictures per second so that they merge together as a moving picture. | |
| 64158. |
Why all mammals are warm blooded? |
| Answer» Mammals and birds are warm-blooded, which means that they can make their own body heat even when it is cold outside. Whether it is sunny and hot outside or there is a snowstorm and it is very cold, warm-blooded animals have body temperatures that usually stay the same. | |
| 64159. |
Do biomass have disadvantages? If s plz list them down. |
| Answer» The disadvantages of using biomass as fuel are:1. Pollution- Burning of biomass fuel directly produces lot of smoke and other gaseous pollutants.i.e creates air pollution.2. Efficiency is less - Incomplete and slow burning results in low calorific value (low heat producing value)compared to other fuels.i.e produces less heat per unit mass, on burning. Wood,agricultural wastes,cow dung are examples of biomass fuel. | |
| 64160. |
Why herbivores have longer small intestine? |
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Answer» For helping me???? Thanks my friend ✔✔⭕Herbivorous animals have longer intestines than that of carnivorous animals. This is because their diet is grass and plants, made up of fibre and cellulose which are hard to digest. As a result the herbivorous animals need a longer digestive track to digest their foods completely. A longer intestine would also host many small bacteria that process and break down cellulose into glucose, a source of energy which the host herbivore can use. Without the long intestines, animals such as cows could still eat grass, but would not be able to use the glucose stored in the grass structure.⭕✔✔❤❤MAY THIS HELP U MY FRND!!!!!!??? Hervivorous have longer intestine because it eat meat and plant so meat digest in 6hour so due to this herbivours have longer small intestine |
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| 64161. |
What is iudc and its full from |
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Answer» Iudc isca type of barier method of birth control IUCD h kya |
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| 64162. |
Difference between covalent bond and ionic bonds with properties |
| Answer» | |
| 64163. |
What is alkyl |
| Answer» denoting a hydrocarbon radical derived from an alkane by removal of a hydrogen atom. | |
| 64164. |
In mammals and birds why is it necessary to separate oxygenated and de oxygenated blood |
| Answer» \xa0It is necessary in mammals and birds to separate oxygenated and de-oxygenated blood because this makes their circulatory system is more efficient and helps in maintaining constant body temperature. | |
| 64165. |
How do we stop Biopiracy? Is there any Biopiracy happens around you. Explain your views briefly. |
| Answer» | |
| 64166. |
I am a stundent of class 10 and i not understand how to study the science subject |
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Answer» Setup or mouth Frnd to understand the lessons First: don\'t memorise or bihat any concept.Second: try to write your own hints or points from the lesson in a note.Just reading the hints of ur own words will help you better & score well. If u want to score good in science then u must know all the concepts which are given in ncert book, revise ncert questions and last year question papers.i hope it will surely help u ? Go to hell |
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| 64167. |
What is chemical composition of 1/2 H2O |
| Answer» Hemi hydrate | |
| 64168. |
What is electrowinning |
| Answer» | |
| 64169. |
How the charcoal is formed? |
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Answer» When coal is heated in absence of oxygen or we can say in limited supply of oxygen then charcoal is formed When the wood is partially burnt in limited supply of oxygen then it becomes charcoal |
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| 64170. |
What is power of accomdation |
| Answer» Power of Accommodation. The process by which the ciliary muscles change the focal length of an eye lens to focus distant or near objects clearly on the retina is called the accommodation of the eye. | |
| 64171. |
What is solenoid.Explain briefly |
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Answer» Solenoid is a soft iron send w i t h coil and then behave like a permanent bar magnet When a current carring wire is wrapped around a soft iron pore then the entire system formed behave like a permanent bar magnet. It is known as solenoid. |
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| 64172. |
Write the naming of this compound H2c=ch-ch2-c=_ch |
| Answer» | |
| 64173. |
Difine electric moter |
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Answer» Electric motor is a device that converts electrical energy into mechanical energy it works on the principle the magnetic effect of electric current in the electric motor we apply Fleming\'s left hand rule find the direction of motion An electric motor is a device that converts electric energy into mechanical energy. An electric motor is a gadget which is designed to convert electrical energy into mechanical energy. |
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| 64174. |
Water cycle |
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Answer» Sorry. Misshapening An electric motor is a type of gadget which is designed to convert electrical energy into mechanical energy. |
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| 64175. |
Expailn OHM\'s law |
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Answer» Ohm\'s law state that at the constant temperature the current flowing through a conductor is directly proportional to potential difference across the terminal Ohms law states that the current flowing through a conductor is directly proportional to the potential difference across its two ends by keeping the physical conditions i.e, pressure and temperature constant a law stating that electric current is proportional to voltage and inversely proportional to resistance. V=RI |
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| 64176. |
Hafiarly axam. Sample paper |
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Answer» Haààæ This in not hafiarly this is half-yearly om |
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| 64177. |
Wt is Snell\'s law of refraction?. Plz explain. |
| Answer» The ratio of sin of angle of incidence to sin of angle of refraction is constant to a given colour at a pair of media.Sin i/Sin r= constant (n) | |
| 64178. |
Differences between displacement and double displacement reaction |
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Answer» Displacement reactions are usually slow and take longer time for their completionDouble displacement reactions are usually fast and take place instantaneously Displacement reaction means those reactions in which one element takes place of any another element in a compound that\'s mean displacement reaction AND Double displacement reaction means some reactions in which two compounds react by an exchange of ions (H+) and (OH-) to from two new compounds that\'s mean double displacement reaction Exchange of ions between two reactants is knowm as double displacment reaction. More reactive substance displace less reactive substance is known an displacement reaction.Exchange of ions between two reactants. It is given in book. So read book carefuly |
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| 64179. |
Why magnesium ribon is clean before burning in air |
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Answer» To remove the oxide layer on the surface of magnesium To remove any oxide layer present on the surface of Mg-ribbon Just to remove the oxide layer over the ribon Magnesium ribbon should be cleaned with sandpaper before burning in air in order to remove white layer of magnesium oxide. |
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| 64180. |
What is the difference between Resistivity and resistance |
| Answer» Obstacle offered to flow of electric is RESISTANCE. Property of wire to offer resistance is RESISTIVITY | |
| 64181. |
What is the effect of temperature on resistivity |
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Answer» Temperature is directly proportional to resistivity. If temp. increase resistivity increase and vice versa temperatyre is directly proportional to resistivity |
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| 64182. |
Dohra prisancharen |
| Answer» | |
| 64183. |
Name the organ and site of photosynthesis in green plants |
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Answer» Chloroplasts are the site of photosynthesis in plants Kirti kaushik Thank you Aryan Pandey Thank You Chloroplast Chloroplast |
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| 64184. |
Why ionic compounds have high melting points |
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Answer» Considerable amount of energy is required to brake the strong force if attraction Due to strong electrostatical force between them Due to strong force of attraction between the oppositely charged particles |
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| 64185. |
Wt is atmospheric refraction & why is it caused? |
| Answer» The density of air is higher near the surface of the earth. As we move upwards from the surface of the earth, density of air keeps on decreasing. This increase in density as light rays come towards earth is the cause of refraction.Some consequences of atmospheric refraction are:1. Twinkling of stars.2. The stars seem higher than they actually are.3. Advance sunrise and delayed sunset. | |
| 64186. |
What is Si unit of power? |
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Answer» Watt Watt or volt ampere SI unit of power is WattJames Watt was an inventor SI unit of power of lens is dioptere Watt Watt |
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| 64187. |
What is the importance of DNA copying in reproductiòñ ?? |
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Answer» It transfer genetic charecter from parents to progny but knowledge is most importance for us... It is not our level types questions |
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| 64188. |
Difference between electric motor and electric generator |
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Answer» Generator also works on the baisis of electromagnetic induction Motor converts electrical energy to mechanical energy whereas generator converts mechanical energy to electrical energy |
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| 64189. |
Which harmone we said birth harmone... |
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Answer» Nah ur ans is not correct ... Oxytocin is correct..... Kkk Progesterone I think it is growth hormone that is released by pituitary gland |
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| 64190. |
Which is the first organ made in chid??????? |
| Answer» Heart | |
| 64191. |
What is indicator? Write its type. |
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Answer» Substance which tells us about acidic or basic nature by change in colour Olfactary,natural and synthetic are its types. Something which gives information or shows something: a sign |
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| 64192. |
What is ciliary |
| Answer» Cillary muscles hold the eye lens in its position. When these muscles are relaxed, the lens becomes thin and its focal length increases. This enables us to see distant objects clearly. When we look at nearby objects, these muscles contract. As a result, lens becomes thicker and its focal length decreases. This enables us to see nearby objects clearly. | |
| 64193. |
Why some plants are grown by the process of vegetative propagation? |
| Answer» To let them grow fast | |
| 64194. |
What is seed dormancy ? And how it happens ? |
| Answer» Means not growing and it\'s happened due to the growth inhibitors harmones | |
| 64195. |
What is the function of optic nerve in our eye |
| Answer» It helps in transfer of info. at retina (image) to optic lobes of our brain in the form of electrical signals so that it can be interpret and as a result we see the image formed at our retina | |
| 64196. |
How to make paper presentation in exam for science plz tell plz ? |
| Answer» Write neatly and try to do questions orderly and yes draw diagram neatly | |
| 64197. |
How the spoilage of food can be prevented? |
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Answer» By preventing rancidityBy the following methods:1) by using preservatives like BHA and BHT 2) by storing it in air tite containers3) by keeping it away from heat ( because it makes food to spoil fast) Yes |
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| 64198. |
name the device used to maintain potential difference in an electric circuit |
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Answer» Electric cell battery or generator Cell or combination of cells(battery) Hyih |
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| 64199. |
What is a baking soda |
| Answer» Baking soda is NaHCO3 sodium hydrogen carbonate | |
| 64200. |
How is baking soda prepared |
| Answer» When baking soda is heated, sodium carbonate, water and CO2 are produced.Sodium carbonate obtained is dissolved in water and crystals of washing soda are obtained by crystallization.2 NaHCO3 → Na2CO3 + H2O + CO2\xa0 | |