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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.
| 10201. |
What is matter with suitable.example |
| Answer» Matter is a substance that has inertia and occupies physical space. According to modern physics, matter consists of various types of particles, each with mass and size. The most familiar examples of material particles are the electron, the proton and the neutron. Combinations of these particles form atoms. | |
| 10202. |
Balance of chemicals equation |
| Answer» \tBalancing the Chemical Equations:\tIn a balanced chemical equation, the total number of atoms of each element of the reactants on the left hand side of the equation is equal to the number of atoms of the products formed on the right hand side of the equation.\tThe total mass of the reactants is equal to the total mass of the products or the number of atoms of each element before the reaction and after the reaction is equal. | |
| 10203. |
Balancing a chemical reaction follows |
| Answer» \tBalancing the Chemical Equations:\tIn a balanced chemical equation, the total number of atoms of each element of the reactants on the left hand side of the equation is equal to the number of atoms of the products formed on the right hand side of the equation.\tThe total mass of the reactants is equal to the total mass of the products or the number of atoms of each element before the reaction and after the reaction is equal. | |
| 10204. |
Explain hw genes inherited traits from parents to progeny? |
| Answer» Gud morning | |
| 10205. |
Newland and lothermeyer |
| Answer» Scientists h | |
| 10206. |
Write and study the achivements and drawbacks of scientist doberianer |
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Answer» Drawback of Dobereiner\'s triads:\tDobereiner could identify only three triads. He was not able to prepare triads of all the known elements\tAll the known elements could not be arranged in the form of triads.\tFor very low mass or for very high mass elements, the law was not holding good. Take the example of F, Cl, Br. Atomic mass of Cl is not an arithmetic mean of atomic masses of F and Br. Law of Triads:\xa0When elements are arranged in the order of their increasing atomic masses, the atomic mass of the middle element was approximately the mean of the atomic masses of the other two elements.For example: Consider the triad of lithium, sodium and potassium. The atomic mass of sodium is the mean of the atomic masses of lithium and potassium. |
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| 10207. |
Why does we need classification of element |
| Answer» •The number of elements discovered has increased, making it difficult to remember the behavior and properties of these elements. •Hence it is important to classify elements according to their properties. It is also necessary to understand how they form the compounds.•Grouping of elements into different classes is called periodic classification of elements.•This method is requires arranging the elements that are alike and separating the elements that are unlike.•To compare the properties of elements.It helps us understand how different elements form different compounds. | |
| 10208. |
Why sky see blue? |
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Answer» The molecules of air and other fine particles in the atmosphere have a size smaller than the wavelength of visible light. Thus, they are more effective in scattering light of shorter wavelengths at the blue end than light of longer wavelengths at the red end.Red light has a wavelength greater than blue light. Thus, when sunlight passes through the atmosphere, the fine particles in air scatter blue colour (shorter wavelengths) more strongly than red. The scattered blue light enters our eyes.If the Earth had no atmosphere, then there would not have been any scattering. The sky would have looked dark. Similarly, the sky appears dark to aeroplane passengers flying at very high altitudes, as scattering is not prominent at such heights. reflection of water bodies |
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| 10209. |
what is light decomposition? |
| Answer» The the light is composed | |
| 10210. |
What happens when excess carbon dioxide is passed through lime water |
| Answer» Calcium hydroxide is formed which is also called slaked lime.Cao+O2=Ca(OH)2 | |
| 10211. |
State the function of alveoli in the lungs |
| Answer» The function of alveoli is to exchange oxygen and carbon dioxide molecules to and from the bloodstream. These tiny, balloon-shaped air sacs sit at the very end of the respiratory tree and are arranged in clusters throughout the lungs | |
| 10212. |
Name the intermediate and the product of glucose breakdown in aerobic respiration |
| Answer» Carbon dioxide (CO2), Water (H2O) and the energy ( 38 molecules of ATP) | |
| 10213. |
State basic difference in the process of respiration and photo synthesis |
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Answer» In photosynthesis,the byproducts are 02 and H20 In respiration the byproducts are Co2 and energy |
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| 10215. |
Scientifc name of elephant? |
| Answer» Loxodonta | |
| 10216. |
Where did life originate on the earth? |
| Answer» Evolution ka part ? | |
| 10217. |
Name the ancestors of the Broccoli,kohlrabi amd kale. |
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Answer» Wild cabbage..name nhi yaad Cabbage ? |
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| 10218. |
Name an animal having rudimenyary eyes. |
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Answer» Flatworms (Planaria) have rudimentary eyes Planaria ? |
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| 10219. |
what are the types of decomposition reactions? |
| Answer» Light,electrolysis and thermal decomposition reaction | |
| 10220. |
What ensures the release of food in small amounts into the small intestine |
| Answer» The exit of food from the stomach is regulated by A SPINCHTER MUSCLE which release it in small amounts into the smaller intestine. | |
| 10221. |
Why is there a need to remove the basic layer of magnesium carbonate before burning |
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Answer» We need to clean magnesium ribbon before burning it to remove the protective layer of basic magnesium carbonate which is formed by the reaction of magnesium with moist air.The bright white light given out during the burning of magnesium ribbon is harmful to the eyes so, the magnesium ribbon is burned by keeping it as far as possible from the eyes. Because it prevent burning of magnesium.... |
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| 10222. |
What is translocation?why it is essential for plants ? |
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Answer» Translocation is defined as “the transport of soluble products of photosynthesis”. The translocation in plants takes place by vascular tissue called phloem. The translocation is essential since without it, food prepared by leaves of plants could not reach other parts of plant.\tIn plants, synthesis of sugars occur in leaves by photosynthesis.\tThe hormones are synthesised away from their target site in plants. The transportation of food,water and minerals in plants with the help vessels is known as translocation |
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| 10223. |
Why should be a magnesium ribbon be cleaned before burning in air |
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Answer» To remove the oxide layer Magnesium ribbon is cleaned before burning because to remove the basic layer of magnesium oxide and magnesium carbonate that has formed on the surface of the ribbon due to reaction of magnesium with oxygen and carbon dioxide . By cleaning the magnesium ribbon with sand paper, the ribbon burns smoothly. 2Mg + O2 ------> 2MgO and Mg + CO3 -------> MgCO3 To remove a layer of magnesium oxide To remove the layer of basic magnesium carbonate.... |
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| 10224. |
What is the formula for barium hydroxide |
| Answer» Ba(OH)2 | |
| 10225. |
State Fleming\'s Right hand rule. |
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Answer» Fleming\'s right-hand rule (for generators) shows the direction of induced current when a conductor attached to a circuit moves in a magnetic field. It can be used to determine the direction of current in a generator\'s windings.When a conductor such as a wire attached to a circuit moves through a magnetic field, an electric current is induced in the wire due to Faraday\'s law of induction. The current in the wire can have two possible directions. Fleming\'s right-hand rule gives which direction the current flows.The right hand is held with the thumb, index finger and middle finger mutually perpendicular to each other (at right angles), as shown in the diagram.[1]The thumb is pointed in the direction of the motion of the conductor relative to the magnetic field.The first finger is pointed in the direction of the magnetic field. (north to south)Then the second finger represents the direction of the induced or generated current within the conductor (from the terminal with lower electric potential to the terminal with higher electric potential, as in a voltage source)The bolded letters in the directions above give a mnemonic way to remember the order. Another mnemonic for remembering the rule is the initialism "FBI", standing for Force (or otherwise motion), B the symbol for the magnetic field, and I the symbol for current. The subsequent letters correspond to subsequent fingers, counting from the top. Thumb -> F; First finger -> B; Second finger -> I.There is also a Fleming\'s left hand rule (for electric motors). The appropriately handed rule can be recalled from the letter "g", which is in "right" and "generator".These mnemonics are named after British engineer John Ambrose Fleming, who invented them. The forefinger points to the direction of the magnetic field. The middle finger points in the direction of the current. The thumb gives the direction of force or motion acting on the conductor. |
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| 10226. |
What is physic? |
| Answer» the study of matter, energy, and the interaction between them | |
| 10227. |
Why are the traits aquaired during the life time in the individual not inherited? |
| Answer» 1. Weight2.experience etc | |
| 10228. |
Write the conditions for relection of light |
| Answer» The light must be travelling from a more dense medium into a less dense mediumThe angle of incidence must be grater than the critical angle | |
| 10229. |
Definition of life process |
| Answer» The basic function perform by organisms to survive in environment is knownas life process | |
| 10230. |
Crona Virus Kab aaya |
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Answer» Corona virus is first discovered in 1930s 2020 China m 2019 k last k trf Where |
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| 10231. |
Name one alkali and one alkaline earth metal each starting with letter\'s\' |
| Answer» Hid | |
| 10232. |
Name the unit of electrical resistance and resistivity |
| Answer» Ohm and ohm meter | |
| 10233. |
What do you think which one is easiest method to represent a chemical change/reaction ..give reason |
| Answer» Nothing | |
| 10234. |
How does the creation of variation in a species ensure its survival? |
| Answer» \tVariation simply refers to differences. This difference could be in terms of cells, tissues, organs, or even organisms.\xa0\tA variation could be attributed to both genetic factors as well as some environmental factors.\xa0\tVariation is usually the result of an organism’s life experiences. These experiences trigger a change in the genetic makeup of an organism that ensures better adaptability and survival in its environment.\xa0\tThese variations are aimed at increasing the survival value of an organism.\xa0 | |
| 10235. |
All plants give up oxygen during day and carbon dioxide at night. Give reason. |
| Answer» Because they make food through the process of photosynthesis in day time and respiration at night time to release Carbon dioxide | |
| 10236. |
Differences between helozoi and saprophytic nutrition? Give one example. |
| Answer» Holozoic nutrition defines modes of nutrition like food particles digestion and absorption whereas saprophytic nutrition defines the nutrition mode of fungi and bacteria.Holozoic nutrition cannot digest their food outside their body and examples are animals like dog, monkeys, etc. Saprophytic nutrition can digest food outside the body and example of this nutrition is Mushrooms.Holozoic nutrition uses complex food material which is organic. Saprophytic nutrition uses dead organic matter. | |
| 10237. |
Why did mendel choose pea plants for conducting his experiment on inheritance? |
| Answer» Because of its short life span as he could be able to study many generations and also pea plants can be crossed easily the second important reason is that it has wide range of contrasting characters. | |
| 10238. |
All diagrams of life processes |
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Answer» All diagrams Givr |
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| 10239. |
Why do we need to manage the resources? |
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Answer» Anu ke baad koi letter h?? Try karo No Anju/janu Anu sahi h par ek letter missing h Yes Nhi bata rahi hint du बिल्कुल सही उत्तर और आप जीत chuki hain apna cute nic name batane ka offer For sustanaible development |
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| 10240. |
Any queries in science?Plz ask me i also clear my doubts |
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Answer» If stomata is blocked in green plants then exchange of gases. is stop and rate of reaction of photosynthesis slow down and plant will die Anushka i don\'t understand what you want to say so plz repeat your question Good Gas will not exchange Of all stomata are blocked in green plants,than what will happen |
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| 10241. |
Why magnesium ribbon should be cleaned before burning it in air? |
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Answer» This is done to remove the protective layer of magnesium oxide from the surface of magnesium ribbon so that it may readily combine with the oxygen of air on heating. Meena Pradhan superb?????? Magnesium ribbon is cleaned before burning to remove the protective layer of basic magnesium carbonate from the surface of magnesium ribbon |
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| 10242. |
What happened when egg is not fertilised in human body? |
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Answer» The non fertilised egg will be move out from the body during mensuration Meena Pradhan your answer is not clear If the egg does not fertile in women than she will not able to have baby |
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| 10243. |
Out of genes, dna or chromosomes which one is smallest unit ? |
| Answer» genes are the smallest | |
| 10244. |
What happened to the glucose when sufficient oxygen is not provided to the cells in the human body |
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Answer» Ashi sharma thnx??????????? When sufficient oxygen is not provided to the cells in the human body lactic acid will be produced with energy. |
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| 10245. |
Why is the color of clear sky is blue??? |
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Answer» Hello Hi Due to the scattering of beam of light The blue color of the sky is due to the scattering of light by small particles of the atmosphere.Blue is scattered more than any other colors because it travels as shorter,small waves.This is why we see a blue sky most of the time. |
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| 10246. |
What is definition for chloroplast and chlorophyll ? |
| Answer» The chlorophyll is a pigment which gives green colour to the plants. Chloroplast is an organelles or membrane present in the plant cell and the site of photosynthesis. | |
| 10247. |
Why calcium is formed in the form of compounds |
| Answer» Because calcium is very reactive element. it react with mineral present in environment and form compound. | |
| 10248. |
Why is pure gold not suitable for ornaments? |
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Answer» Pure gold is known as 24 carrot gold.It is very soft and can be easily bent without much effort!! So, we can\'t use pure gold in making ornaments \u200bcause they are not hard.To prevent this gold is alloyed with either silver or copper. This alloy is hard enough for making ornaments. Generally 22 carot gold is used in making ornaments. Because 24 carat gold is very pure and it cannot be given fixed shape and it melts very fast. 24 carat gold, or pure gold is very soft and hence cannot be used for making jewellery |
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| 10249. |
Describe the function of the human respiratory system |
| Answer» The human respiratory system is a series of organs responsible for taking in oxygen and expelling carbon dioxide. The primary organs of the respiratory system are the lungs, which carry out this exchange of gases as we breathe. | |
| 10250. |
What is system harmonic motion |
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Answer» In mechanics and physics, simple harmonic motion is a special type of periodic motion or oscillation where the restoring force is directly proportional to the displacement and acts in the direction opposite to that of displacement a periodic motion (as of a sounding violin string or swinging pendulum) that has a single frequency or amplitude or is composed of two or more such simple periodic motions |
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