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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.
| 65251. |
Explain the cleaning action of soap and detergents |
| Answer» Soap is biodegradable but detergents are non biodegradable. Detergents are easily to do work in hard water but soap not do | |
| 65252. |
Explan neuron |
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Answer» Neurons or the nerve cells form the basic components of the nervous system. A typical neuron possesses a cell body called as soma, hair like structures called as dendrites and an axon. Dendrites are thin structures that arise from the cell body. These dendrites acquire information from synapses via neurotransmitters and convert them into electrical impulses. These impulses are further carried over to the cell body. Neurons are specialized in transmitting information throughout the body. Three types of neurons are sensory neurons, motor neurons and interneurons. Neurons possess a membrane that is designed to send information to other cells. Two neurons are separated by a space called as synapse. Neurons produce chemicals known as neurotransmitters into these synapses to communicate with other neurons. Neurons are the basic components of the Central Nervous System and Peripheral Nervous System Neurons or the nerve cells form the basic components of the nervous system. A typical neuron possesses a cell body called as soma, hair like structures called as dendrites and an axon. Dendrites are thin structures that arise from the cell body. These dendrites acquire information from synapses via neurotransmitters and convert them into electrical impulses. These impulses are further carried over to the cell body.\xa0Neurons are specialized in transmitting information throughout the body. Three types of neurons are sensory neurons, motor neurons and interneurons. Neurons possess a membrane that is designed to send information to other cells. Two neurons are separated by a space called as synapse. Neurons produce chemicals known as neurotransmitters into these synapses to communicate with other neurons. Neurons are the basic components of the Central Nervous System and Peripheral Nervous System Neurons or the nerve cells form the basic components of the nervous system. A typical neuron possesses a cell body called as soma, hair like structures called as dendrites and an axon. Dendrites are thin structures that arise from the cell body. These dendrites acquire information from synapses via neurotransmitters and convert them into electrical impulses. These impulses are further carried over to the cell body. Neurons are specialized in transmitting information throughout the body. Three types of neurons are sensory neurons, motor neurons and interneurons. Neurons possess a membrane that is designed to send information to other cells. Two neurons are separated by a space called as synapse. Neurons produce chemicals known as neurotransmitters into these synapses to communicate with other neurons. Neurons are the basic components of the Central Nervous System and Peripheral Nervous System |
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| 65253. |
Sample paper Q17 |
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Answer» 2018-19 Latest wala Kaun sa sample paper? |
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| 65254. |
What is neant by global warming |
| Answer» Increase in the annual temperature of the earth slo3 | |
| 65255. |
Difference between nuclear fussion and fission. |
| Answer» Nuclear fusion:- A reaction in which two or more lighter nuclei fuse to form a heavy Nucleus and large amount of energy is released.Nuclear fission:- The reaction in which a heavy Nucleus splits into two or more smaller nuclei, with the evolution of large amount of energy when it is bombarded with slow moving neutron. | |
| 65256. |
What is the working of electric generator |
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Answer» Working of AC electric generator :\tThe coil is at rest in vertical position with side (A) of coil at top position and side (B) at bottom position no current will be induced in it.\tWhen the coil is rotated in clockwise direction current will be induced in it and it flows from A to B.\tIf we continue the rotation of coil once again current becomes zero.\tThe coil comes to vertical position with B side at top A at bottom position.\tDuring second part of the rotation current generated follows the same pattern except that the direction of current is reversed.\tThus the current produced is AC current. Here this device is used to convert mechanicla enery into electrical energy |
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| 65257. |
What is the working of electric motor and what is the function of a split ring in an electric motor? |
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Answer» Split rings are used for changing the direction of the motor ?????? And what is the working of electric motor Yes . Is it function of split ring To change the direction of current in horizantal arms. |
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| 65258. |
What do u mean by respiration |
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Answer» The process in which glucose (food) is break down in the presence of oxygen to get energy is called respiration. Carbon dioxide is released during this process as byproduct. The process in which food is oxidised to release energy. It is a catabolic process that cause biochemical oxidation of nutrients like glucose. |
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| 65259. |
Using 1 unit of electricity (1 kWh), how long can you listen to a radio of power 1 watt? |
| Answer» 3.6 mega seconds (10^6) | |
| 65260. |
What nutrient is absorbed in thesmall intestine and reabsorbed by the kidney |
| Answer» Glucose | |
| 65261. |
What is micicle? |
| Answer» The insolule part which formes in soap solution . It is a spherical structure and in it formed ionic head (repelling water) and hydrophobic tail (water attracting). | |
| 65262. |
Ethanoic acide why we dont use with air for melting |
| Answer» | |
| 65263. |
The IUPAC name of CH3OCH3 |
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Answer» Ethanone C2H6O ??????? |
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| 65264. |
Solar cooker |
| Answer» the .box type solar cooker has an isulated and patinted black from inside it covered by glass plate it allows heat to come but not allow heat to go back its temporacture is ? and 140 | |
| 65265. |
Explain ethanoic acid |
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Answer» Ethanoic acid\xa0(CH3COOH) belongs to the group of carboxylic acids and is commonly called as\xa0acetic acid. It is slightly heavier than water with a density of 1.05 g/cm3. After adding 5-8% of acetic acid in water it becomes vinegar and is mostly used as preservatives in pickles. Acetic acid is the common name for Ethanoic acid.Properties of Acetic acid\tChemical formulaCH3COOHMolecular Weight/ Molar Mass60.05 g/molDensity1.05 g/cm3Boiling Point118oCMelting Point16oC\tAcetic Acid structure:\xa0 Please anwered the question |
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| 65266. |
What is the easy trick to name IUPAC compounds? |
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Answer» There\'s no trick you have to simply mug up them Plz tell if anyone know There is a great trick I dont think that there is any trick International union of pure and applied chemistry. Yes if someone know plz tell? |
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| 65267. |
An animal having double circulation in a 3 chambered heart is??? |
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Answer» All amphibians and all reptiles. Crocodile ?? Crocodil Crocodile |
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| 65268. |
What is optically denser medium and what is snell\'s law ? |
| Answer» A medium is said to be “optically denser” medium if the light in it travels slower. If the value of the refractive index is high then, the bending effect light too will be higher. When passing from air into any medium. Any medium with a greater value of the refractive index (n) is an optically denser medium.Snell’s Law “Ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant for the light of given color and for the given pair of media”. | |
| 65269. |
In the refraction of light ,the angle of refraction is usually not equal to the angle of incidence |
| Answer» | |
| 65270. |
what is somatic variation |
| Answer» Somatic variations : These are the variations that occur in the non-reproductive cells. These are non- inheritable or non transmissible variations. These occur during tThere are various criteria based on which variations can be categorised. One of the criteria relevant to your grade level is whether variations are present in reproductive cells or other cells (somatic cells) of body | |
| 65271. |
Parts of salivary glands |
| Answer» \tThe salivary glands produce saliva, which keeps the mouth and other parts of the digestive system moist.\tIt also helps break down carbohydrates (with salivary amylase, formerly known as ptyalin) and lubricates the passage of food down from the oro-pharynx to the esophagus to the stomach.\tThere are three main pairs of salivary glands: the parotid, the submandibular and the sublingual glands. | |
| 65272. |
How is twins happen? |
| Answer» Sometimes before fertilisation another sperm get enters in the ovum ,hence the twins are formed. | |
| 65273. |
Smallest bone in human body |
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Answer» Sterrup Stapes(in ear) Ear bone |
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| 65274. |
Write electron dot structure for-C3H6 |
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Answer» CH3-CH=CH2 C3H6 H H H-C=C-C-H H H CH3 - CH = CH2 |
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| 65275. |
Why is voltmeter connected in parallel |
| Answer» so that it will not increase resistance and will not affect the flow of current. | |
| 65276. |
What are catalyst ? |
| Answer» Catalyst is the substance which effect the rateof a chemical reation without involving in the chemical reation | |
| 65277. |
what thing which has been absorbed in small intestine and again absorbed in kidney tubule |
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Answer» Glucose and amino acid Arotra |
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| 65278. |
What are the main constituents(salts) of soap and detergents? |
| Answer» In soap sodium salt and in detergent ammonium | |
| 65279. |
How can we distinguish between alcohol and carboxylic acid experimentally? |
| Answer» Alcohols and carboxylic acids can be distinguished by litmus test and\xa0Reaction with sodium hydrogen carbonate\xa0(i) Litmus test – Alcohol will have no effect on the litmus paper. Carboxylic acid acid will change blue litmus paper into red.(ii) Reaction with sodium hydrogen carbonate – Alcohol has no reaction with sodium hydrogen carbonate (NaHCO3) but in the case of Carboxylic acid it reacts with NaHCO3\xa0which gives CH3COONa, CO2\xa0and H2O. The reaction is evident as the carbon dioxide will turn the lime water milky. | |
| 65280. |
How can we experimentally know that a acid given to us is dilute or not? |
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Answer» By using pH paper Any other method? Dilute acid have low Ph than concenentrated Acid |
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| 65281. |
Which is smallest part of kideny |
| Answer» Nephron in the cortex of the kidney is cup-shaped structure called bowman\'s capsule | |
| 65282. |
What is the carbon is soluble |
| Answer» Question is not clear but carbon is soluble in only organic solvants | |
| 65283. |
Name the emergency harmone |
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Answer» Adrenaline is emergency hormone secreted during condition fight or flight Adernaline is the emergency hormone it secreat in time of stress and emotional disterbence Adrenaline hormone Adrenaline hormone |
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| 65284. |
Calcium ka atomic number kya hai |
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Answer» Xx Atomic no. Of Ca=20Atomic mass of Ca=40 20 atomic no. 6 |
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| 65285. |
Explain the mechanism of the cleaning actions of soap |
| Answer» Soaps are sodium salts of fatty acid the two ends of molecule of soap behave the ionic end is hydrophilic and it is oriented towards water.the other hydrocarbon and hydrophilic and it is oriented towards water the other hydrocarbon and hydrophilic and it is oriented towards dirt is only in nature. A micelle formation around the oily dirt take place | |
| 65286. |
Name two metas which are not ducticle and nor malleable? |
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Answer» Calcium and sodium Sodium and potassium |
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| 65287. |
What is magnetic fulx |
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Answer» Group of magnet field line is created from north pole and end to south is called magnetic flux Magnetic flux |
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| 65288. |
Who is mendal |
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Answer» Mandel is man who gave the theory of reccive or dominat trait Father of genetics. |
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| 65289. |
Define one dioptre power of a lens |
| Answer» When focal length of a lens is 1m it is said to be 1dioptre | |
| 65290. |
Explain addition reaction. |
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Answer» The process in which hydrogen is added to unsaturated hydrocarbon to form saturated hydrocarbon is called addition reaction Addition of hyfrogen in unsaturated solution to make saturated solution |
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| 65291. |
How does genes control traits ? |
| Answer» Cellular DNA is the information source for making proteins in the cell. A section of DNA that provides information for one protein is called the gene for that protein. Genes are sections or segments of DNA that are carried on the chromosomes and determine specific human characteristics, such as height or hair color. proteins control the characteristics.Heredity is the passing of genes from one generation to the next. Genes hold the instructions for making protein products (like the enzymes to digest food or the pigment that gives your eyes their color). As your cells duplicate, they pass this genetic information to the new cells.But genes do not carry out the actual work. Rather, they serve as instruction books for making functional molecules such as ribonucleic acid (RNA) and proteins, which perform the chemical reactions in our bodies. It is these proteins which carry out the actual function of performing different functions and controlling various characteristics. So genes produce the proteins which in turn controls the characteristics, or traits.Example - Plant height is dependent on the amount of a particular plant hormone. The amount of the plant hormone made will depend on the efficiency of the process for making it. Consider now an enzyme that is important for this process. If this enzyme works efficiently, a lot of hormone will be made, and the plant will be tall. If the gene for that enzyme has an alteration that makes the enzyme less efficient, the amount of hormone will be less, and the plant will be short. | |
| 65292. |
Explain substitution reaction. |
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Answer» Chlorine in substituted from hydrogen One hydrogen will remove and that place other non metal placed |
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| 65293. |
Characteristics of groups and periods |
| Answer» General Characteristics of a Group1. Metallic Character: In a group, on moving downwards, the metallic character gradually increases. For example, in the halogen family (group VIIA), fluorine, chlorine and bromine are typical non-metals but iodine, though a non-metal has a metallic lustre. This property is more marked in the elements of groups IVA and VA. These groups begin with a non-metal and end with metals.2. Valency: In a group, all the elements have the same valency. The group number is, in fact, the valency with respect to oxygen.3. Atomic Size: It is the distance between the centre of the nucleus and the outermost shell of an isolated atom. The atomic radius of hydrogen atom is 37pm. On moving downwards, in a group the size of the atom increases. This is because new shells are being added as we go down the group. This increases the distance between the outermost electrons and the nucleus so that the atomic size increases in spite of the increase in nuclear charge.4. Chemical Reactivity: There is a regular gradation in their physical properties like melting point, boiling point density, etc in a group. For example, in alkali metals (group IA), the melting point decreases on moving down the group.General Characteristics of a Period1. Valence Electrons: In a period, from left to right, the number of valence electron increases from 1 to 8.2. Atomic Size: The atomic radius decreases while moving from left to right along a period. This is due to an increase in nuclear charge which tends to pull the electron closer to the nucleus and reduces the size of the atom.3. Valency with respect to Oxygen: From left to right in a period, valency with respect to oxygen increases from 1 to 7.\xa0 | |
| 65294. |
Common nutritient absorbed in the small intestine and reabsorbed by the kidney tubules |
| Answer» Protein | |
| 65295. |
How do acid and base react with metal |
| Answer» Acis form acidic oxidesBases form basic oxides | |
| 65296. |
What is the lemark theory |
| Answer» According to Lamarck, the evolution of life forms had occurred by the use and disuse of organs. Organs that are used more, develop more, while those that are not used become vestigial in the long run. The character developed by an organism during its life time is passes on to the progeny. He gave the long neck of giraffe as an example; according to him, it is an outcome of the attempt to stretch their neck continuously to eat leaves from tall trees. As they passed this acquired character of long neck to succeeding generations, giraffes came to acquire long neck over a long period of time.\xa0\xa0The gradual unfolding of organisms from pre-existing organisms through changes since the beginning of life is called evolution. The theory proposed by J.B. Lamarck is known as the theory of inheritance of acquired characters. According to this theory, the use and disuse of an organ leads to acquiring of change in that organ. These changes or variations can be passed on from one generation to the next but this idea of inheritance of acquired characters was soon discarded.The gradual unfolding of organisms from pre-existing organisms through changes since the beginning of life is called evolution. The theory proposed by J.B. Lamarck is known as the theory of inheritance of acquired characters. According to this theory, the use and disuse of an organ leads to acquiring of change in that organ. These changes or variations can be passed on from one generation to the next but this idea of inheritance of acquired characters was soon discarded. | |
| 65297. |
Why are their so many chemical reaction |
| Answer» This question is like that why we hindu pray different-2 gods like hanuman ji ramji. | |
| 65298. |
V (volts) -0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 5.0 |
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Answer» What is the Q yaar Bhai isme karna kya hai??? |
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| 65299. |
What is Joule\'s law of heating ? |
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Answer» Amount of heat produced in a conductor is directly proportional to square of current that passes through it and directly proportional to the resistance of the conductor and also directly proportional to the time of current that passes through it Who\'s law of heating it states that the amount of heat produced in a conductor is directly proportional to the square of current flowing through it and directly proportional to the resistance of the conductor for a given current and time and directly proportional to the time for which current is flowing through Jiule law states that heat is directly proportional to square of current, Resistance and time Overall :- Heat= I^2.R.T |
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| 65300. |
What is the function of seminal vescicles and prodtate gland |
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Answer» Seminal vesicles and prostate gland provide nutrition to the sperms and make them easy to move Their secretions provided nourishment to sperms and gave them a medium to float Seminal vesicle Releasi its secreation so that the sperms can travel in liquid stateProstaye glamd nourishes the sperm so that it can stay alive for atleast two days |
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