InterviewSolution
Saved Bookmarks
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.
| 65051. |
Why the cell of an atom is written in k l m n instead of a b c d |
|
Answer» Thnx for your answer Because K which is the first shell is very close to nucleus and the greek name of nucleus starts from k . |
|
| 65052. |
How light is an electromagnetic wave |
| Answer» | |
| 65053. |
how we can draw electron dot structure of any compound |
|
Answer» Search in youtube because how can I draw here that is why By transfring electron How can i draw here.. Buddy?..? :-( |
|
| 65054. |
How is biogas obtained from cowdung? |
|
Answer» Cowdung is mixed with water to make slurry in the tank. Then slurry left for some days to get decomposed by anaerobic bacteria to form biogas. In this process biogas is obtained Cowdung is mixed with some other domestic wastes and then is left for anaerobic fermentation by bacteria and it releases biogas . |
|
| 65055. |
The radius of curvature of a spherical mirror is 20cm what is its focal lenght ? |
|
Answer» Focal length =R/2 =20/2=10cmBut focal leanth also in metre .So, 10/100=0.1m Focal lenght (F) =R/2 = 20cm/2 = 20cm |
|
| 65056. |
Which two compound who pH value are same.(mcq)1.H2O2. KCl3.HCL4.NaOH |
| Answer» H2o and kcl having ph value 7 | |
| 65057. |
What is mean by white water |
| Answer» I think it is the solution of calcium corbonate and waterBut i m not sure | |
| 65058. |
What is a atomic wieght? |
|
Answer» The total wieght of electron is mean by atomic wieght sure nh The total weight of nucleus.,electron. |
|
| 65059. |
How to understand extraction of all metals completly |
|
Answer» The method used to extract a metal from its ore depends upon the stability of its compound in the ore, which in turn depends upon the reactivity of the metal:the oxides of very reactive metals, such as aluminium, form stable oxides and other compounds. A lot of energy is needed to reduce them to extract the metal.the oxides of lesser reactive metals, such as iron, form less stable oxides and other compounds. Relatively little energy is needed to reduce them to extract the metal.So, the method of extraction of a metal from its ore depends on the metal\'s position in the reactivity series.Reactivity and extraction methodMetal\tReactivitypotassiumsodiumcalciummagnesiumaluminiumextract by electrolysiscarbon\tzincirontinleadextract by reaction with carbon or carbon monoxidehydrogen\tcoppersilvergoldplatinumextracted by various chemical reactionsReactive metals such as aluminium are extracted by electrolysis, while a less-reactive metal such as iron may be extracted by reduction with carbon. Gold, because it is so unreactive, is found as the native metal and not as a compound, so it does not need to be chemically separated. However, chemical reactions may be needed to remove other elements that might contaminate the metal. You should watch lectures of examfear on youtube |
|
| 65060. |
Differentiate between veins and artries in our heart |
|
Answer» There are a number of differences between veins and arteries.Veins:carry blood from the tissues of the body back to the heartare usually positioned closer beneath the surface of the skinare less muscular than arteries, but contain valves to help keep blood flowing in the right direction, usually toward the heartwould collapse if blood flow stops.Arteries:carry blood away from the heart to the tissues of the bodyare usually positioned deeper within the bodyare more muscular than veins, which helps in transporting blood that is full of oxygen efficiently to the tissueswould generally remain open if blood flow stopped, due to their thick muscular layer.Riverside Heart and Vascular CenterRiverside Heart and Vascular CenterArteries carry blood (with oxygen) from your heart out to your body, while veins carry blood (without oxygen) from your body to your heart. Arteries are strong, flexible blood vessels that are able to expand (get bigger) and contract (get smaller). They expand as your heart beats, and contract between heartbeats. Veins are less flexible than arteries. They have valves (doors) that open and close to let blood through.SCAISCAIYou may have been told that you had a heart attack or a stroke because of a blocked artery. What exactly is an artery?Arteries, like veins, are tube-shaped vessels that carry blood in the body. The chief difference between arteries and veins is the job that they do. Arteries carry oxygenated blood away from the heart to the body, and veins carry oxygen-poor blood back from the body to the heart. Your body also contains other, smaller blood vessels. Here is how blood travels in vessels through the body:Arteries transport blood containing oxygen and nutrients to smaller tubes called arterioles, which then deliver blood to even smaller vessels called capillaries. Capillaries are tiny, thin blood vessels that allow oxygen and nutrients to flow to nearby tissue. After the oxygen and nutrients have been delivered to the body\'s tissues by the capillaries, another network in the body carries blood back to the heart. Small tubes called venules pick up the now oxygen-poor blood and transfer it to the veins, which carry it to the heart. Once the blood has returned to the heart and been pumped through the lungs to remove carbon dioxide and receive oxygen, it is pumped back into the rest of the body and starts the process again. ARTERIES : 1 . It carry blood from heart to different organs of the body . 2 . It is thick walled vessels .3 . No valve are present . 4 . In this , blood flows with high pressure . 5. It always carry oxygenated blood but only pulmonary artery is carry deoxygenated blood heart to lungs VEINS : 1 . It carry blood from body organs to heart . 2. It is thin walled vessels .3 . Valve are present due back flow of liquid . 4. In veins , blood flows with low pressure . 5. Veins carry deoxygenated blood but only pulmonary vein is carry oxygenated blood lungs to heart Artries carry oxygen rich blood.Veins carry deoxygenated blood. Arteries has thick wall |
|
| 65061. |
Explain the slips of photosynthesis |
| Answer» Steps of Photosynthesis:\tSunlight activates chlorophyll; which leads to splitting of water molecule.\tThe hydrogen; released by splitting of water molecule is utilized for reduction of carbon dioxide to produce carbohydrates.\tOxygen is the byproduct of photosynthesis.\tCarbohydrate is subsequently converted into starch and is stored in leaves and other storage parts.\tThe splitting of water molecules is part of the light reaction.\tOther steps are part of the dark reaction during photosynthesis. | |
| 65062. |
How we can say that which acids are strong acids and wich acids are week acids. |
|
Answer» How we can say that which acid are fully ionised and which are not. Those acid in Aqueous solution fully ionised are said to be Strong acid and those acid which shows partially ionised are said to weak acid |
|
| 65063. |
What is tripple fusion |
| Answer» Triple fusion is a process in which the sperm fuses with the two polar nuclei this happens in flowers | |
| 65064. |
What is the important questions or frequently asked questions in ch -4 carbon and compounds ? |
|
Answer» IUPAC Names of compounds Functional group Esterification |
|
| 65065. |
What is the difference between combustion and oxidation |
| Answer» Combustion is the complete oxidation of organic compound into carbon dioxide and water molecules in presence of oxygen gas whereas oxidation is the addition of oxygen in a compound or addition with an element. It is also defined as reaction in which there is loss of electron from an atom or ion. Combustion reactions involve heat and light whereas oxidation reaction does not involve heat. All combustion reactions are oxidizing since they absorb Oxygen for the reaction to take place but all oxidation reactions are not combustion reactions. | |
| 65066. |
What happens when a chemical reaction occurs? |
|
Answer» Four things happenChange in colourChange in stateChange in tempratureEvolution of gqs Heat and energy produce with a product |
|
| 65067. |
Name the third mamber of Alkynes group or family. |
|
Answer» Butyne Butyl C3H4 |
|
| 65068. |
Why speed of light become slow in rarer to denser medium |
|
Answer» Because denser medium have less space in atom than rarer Because the light ray bend to normal ray. |
|
| 65069. |
What ways prevent pregnance |
|
Answer» By using condoms and tubectomy and vasectomy and iucd devicee By four typesSurgical methodBariar methodChemical method Search in google don\'t waste time By three type1. Bariar mathod2.Surgical mathod3.Chamical mathod |
|
| 65070. |
Define ohm\'s law briefly |
|
Answer» V=IR "At constant temperature the current flowing through a conductor is directly proportional to the potential difference across it\'s end." This is known as ohms law. At a constant temperature and pressure, if the potential difference is directly proposnal to flow of current.V~ IV=IRR=V/IWhere R is also a resistance. |
|
| 65071. |
Difference between rarer to denser and denser to rarer |
|
Answer» 1.In light ray pass from rarer to denser medium it bend to normal ray.2.The speed of light become slow.1.In light ray pass from denser to rarer medium it away to normal ray.2. The speed of light become fast. When a beam of light passes from rarer to denser medium say air to glass it bents toward normal but when light goes from deser to rarer say glass to air light goes away from normal |
|
| 65072. |
explain fragmendation |
|
Answer» In which process of break down body into organism two or more parts It is the process by which an organism divides into fragments or pieces.It is an asexual mode of reproduction. It is the process of breaking up of the body of an organism into two or more parts called fragments. Which each of grow into new individual is called fragmentation |
|
| 65073. |
Define biological magnification briefly? |
| Answer» Increase in concentration of toxic and poisness substance in diffrent level | |
| 65074. |
What is difference between acids and alkaline? |
|
Answer» Acid are bitter and alkaline are water soluble bases Acids are those which shows acidic character whereas alkaline are those which shows basic character or we can say that alkaline are base |
|
| 65075. |
Define platue |
| Answer» A large high area of flat land its called platue | |
| 65076. |
Why should plaster Of Paris stored in moisture proof container |
| Answer» Because in presence of moisture plaster of paris reacts to give hard mass cuso4. ½h20 +3/2 h20=}cuso4.2h20 | |
| 65077. |
Properties of carbon compound |
|
Answer» It have tetravaliancy Carbon compound have catenation property that is self combination capacity Carbon compounds are tetraviolent componds (ie their valancy is 4) |
|
| 65078. |
Oil and fat containing food items are flushed with nitrogen . why |
|
Answer» Nitrogen gas prevent food from Rancidity If it not flushed then it get rancid and give bad smell and tasteSo it should flushed with nitrogen ?? To prevent the food items from rancidity and nitrogen is only the gas which is not reactive with food items. ? Because if they do not flushed they get oxidised and become rancid and give bad smell and taste To prevent them from rancidity. |
|
| 65079. |
Why carbon cannot take 4 electron |
|
Answer» Uski margi Carbon cant take 4 electrons because its nucleus which have 6 protons cant hold 10 electrons by attraction |
|
| 65080. |
Do exprement with diamond structure |
| Answer» | |
| 65081. |
Difference between natural selection and artificial selection? |
|
Answer» Thank you very much this is very simple ans for learning?? Nature creates some calamities or sone organisms get destroyed or get advantaged by nature.Artifixal section is where organiams are destroyed or created artificially |
|
| 65082. |
What is concave mirror ? |
|
Answer» Concave mirror is that mirror in which reflection takes place at the bending or concave surface. It is a converging mirror. In concave mirror real image is formed except one case in this when object is placed between pole and focusof the concave mirror virtual image is formed Light does not bend. A most significant property of light is that it travels in a straight line from its source to whatever surface it touches. The rays of light may be long or short; regardless, rays of light are always straight. A concave mirror is composed of a reflective surface with its sides curved closer in distance to your eye than its middle surface. Let\'s look at what happens to rays of light, traveling at approximately 186,000 miles per second (the speed of light), when they strike a concave mirror’s surface. |
|
| 65083. |
Image formed when object is at infinity |
|
Answer» Focus At focus Rays come parallel with principleaxis when they strike on concav mirror they meet on focus At the focus |
|
| 65084. |
Are structural isomers possible in case of bromopentane |
|
Answer» Yes there are three like n-pentaneIso-pentaneBromo-pentanr Yaa 3 isomers possible of bromopentane Yes it may be |
|
| 65085. |
what happens when nitric acid poured on eggshells |
|
Answer» HNO3+ caco3---------- ca(NO3)2 co2 h2o Sorry its carbon dioxide It gives cabon dioxide, calcium nitrate,and water |
|
| 65086. |
CH3-CH2-Br chemistry class 10 name the compound why it is written bromomethen not brmoethene |
|
Answer» It cannaot be called brethene because Sigle bond- aneDouble bond-eneTriple bond-yne Thanks Bromoethane |
|
| 65087. |
Why dead body float on water |
| Answer» After death our body float on water because after death our body density less than water. So, that our body float in water | |
| 65088. |
No of water molecules preset in hydrated salt |
| Answer» FeSO4.7H2OCuso4.5H2OCaso4.2H2ONa2Co3.10H2O | |
| 65089. |
Name the Largest artery in human body. |
|
Answer» Arota is largest artery in human body Arota☃️⛄ Aorta |
|
| 65090. |
Cyclodecane structure |
| Answer» | |
| 65091. |
What is blind spot? Explain with diagram. |
| Answer» A spot where no image is formed | |
| 65092. |
What are genetics |
|
Answer» Genetics is a branch of biology concerned with the study of genes, genetic variation, and heredity in living organisms. Genetics is the study of heredity and variations |
|
| 65093. |
Its so hard to learn |
|
Answer» Haaaa???? Hmmmmm? Yaaa???? |
|
| 65094. |
A baby when a baby born have 306borns but he became young he have only 206borns |
|
Answer» But a new born baby have only 300 bone not 306 bones First of all its bone not born . Yes its true because they fused among themselves with the increasing in age Yes you are right |
|
| 65095. |
Draw tetrehartal structure ?explain. |
| Answer» | |
| 65096. |
Define cross pollination |
|
Answer» Thank you tisha☺️ Transfer of pollen grains from anther to stigma of flower of different plant of same species is called cross pollination.Hope it is helpful. The transfer of pollen grains of a flower to another flower of anther is called cross pollination. Transfer of pollen grains from anther to stigma from different plant diff variety. Pls rrply hows it |
|
| 65097. |
For what copper T is used by women |
|
Answer» It control birth rate Copper T is used as contraceptive by females.Its prevents fertilization. It is used for birth control in women |
|
| 65098. |
Define puberty |
| Answer» puberty is the period in which many changes in the body occurs. it seems at the age of 13,14 in boys and in girls it seems at the age 10 ,12 | |
| 65099. |
name the reaction which is commonly used in the conversation of vegetable oils to fats . |
|
Answer» Hydrogenation process Hydrogenation |
|
| 65100. |
Name the organic acid present in vinegar |
|
Answer» Ethanoic acid CH3COOHETHANOIC ACID Ethanoic acid CH3COOH |
|