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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.
| 58051. |
Waht is the lymph and its functions |
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Answer» Lymph has 4parts lymphnodes, lymph cappilaries ,lymph vessels and lymphocytes . lymphocytes produce antibodies protect from foriegn material and harmful substances lymph is a light yelloish fluid which excapes from the blood spaces into the intracellular spaces. It flows from the tissues to the larger veins. Lymph carries digested and absorbed fat from intestine and remove access fluid from intracellular spaces into the blood |
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| 58052. |
Why is geographic north pole called magnetic south pole |
| Answer» Since north pole attracts south pole the needle of magnetic compass deflects toward the magnetic south to show north. Hence geographical North pole is called magnetic North pole and vice versa. | |
| 58053. |
Why playing basketball increase height???? |
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Answer» Because while jumping our body will stretched Yea Because body streches by jumping while playing basketball |
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| 58054. |
Science ncert solution |
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| 58055. |
What do you mean by reproductive health? |
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Answer» Thanks Yogita ...? Reproductive health, as defined by the World Health Organization, is a state of physical, mental, and social well-being in all matters relating to the reproductive system at all stages of life and not merely the absence of reproductive disease or infirmity. Reproductive health deals with mensuration and menopause, pregnancy, conception, infertility, contraception and sexually transmitted diseases. |
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| 58056. |
Why antioxidants are added to fatty food? |
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Answer» To protect them from rancidity To prevent them from rancid (oxidation due to moisture) to prevent them from moisture |
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| 58057. |
Write importance of pH in every day life |
| Answer» 1. pH in our digestive system: Our stomach produces hydrochloric acid of pH about 1.4. This dilute hydrochloric acid helps in digesting our food without harming the stomach. Sometime, excess of acid is produced in the stomach for various reasons such as overeating. The excess acid in the stomach causes indigestion which produces pain and irritation. In order to cure indigestion and get rid of pain, we can take bases called antacids. Being basic in nature, antacids react with excess acid in the stomach and neutralize it. The two common antacids used for curing indigestion due to acidity are Magnesium hydroxide (Milk of Magnesia) and Sodium hydrogen carbonate.2. pH change as the cause of tooth decay: When we eat food containing sugar, then the bacteria present in our mouth break down the sugar to form acids such as lactic acid. Thus, acid is formed in the mouth after a sugary food has been eaten. This acid lowers the pH in the mouth making it acidic. Tooth decay starts when the pH of acid formed in the mouth falls below 5.5. This is because then the acid becomes strong enough to attack the enamel of our teeth and corrode it. This sets in tooth decay.3. Soil pH and plant growth: Most of the plants grow best when the pH of the soil is close to 7. If the soil is too acidic or too basic the plants grow badly or do not grow at all. The soil may be acidic or basic naturally. The soil pH is also affected by the use of chemical fertilisers in the fields.4. pH change and survival of animals: Our body works well within a narrow pH range of 7.0 to 7.8. If due to some reason, this pH range gets disturbed in the body of a person, then many ailments can occur. The aquatic animals (like fish) can survive in river water within a narrow range of pH change. | |
| 58058. |
Write importance of pH paper in every life |
| Answer» 1. Plants and animals are pH sensitive. Living organisms can survive\xa0only in narrow range of pH change.2. pH of the soil. Plants require a specific pH range for their healthy\xa0growth.3. pH in our digestive system. Our stomach produces hydrochloric acid\xa0that helps in the digestion of food. During in digestion the stomach\xa0produces too much acid that cause pain and irritation.4. Change in pH causes tooth decay. Tooth decay start when the pH of\xa0the mouth is lower than 5.5. Tooth enamel gets corroded when the pH\xa0in the mouth is below 5.5.5. Self-defense by plants and animals through chemical warfare. Bee–sting leaves and acid causing pain and irritation. Applying a mild base\xa0like baking soda on the stung area provides relief. | |
| 58059. |
What is aqueous ? |
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Answer» Solution in the form of a liquid Aqueous solution means solution which is mixed with water In the form of liquid |
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| 58060. |
why light is considered as invisible ? |
| Answer» Light is visible but when refracted. Hence before refraction the light does not split rather converges and moves as a single constituents hence it seems to be invisible. | |
| 58061. |
During eletrolysis of water,how can we identify the gas present in each test tube |
| Answer» During the electrolysis of water,there will be compulsarily the presence of two gases:1 Hydrogen and 2. 0xygen.Now definetly the hydrogen atoms or H+ ions will be attracted towards the anode for sure and there we will keep a matchstick just about it.if there is a pop sound created we will proove the presence of hydrogen gas | |
| 58062. |
What are alkali? |
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Answer» Alkali means the base which is soluble in water Alakali is water soluble base Alkali is a enzymes that has property of base |
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| 58063. |
what is electromagnetic radiations? |
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| 58064. |
Name the red pigment which carries oxygen in the blood. |
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Answer» Haemoglobin Haemoglobin Heamoglobin in blood Hameoglobin |
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| 58065. |
What is the difference between dark reaction and light reaction? |
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Answer» In dark reaction light is not required and in light reaction plant is illuminated with light Good answer Read from book |
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| 58066. |
Which is the basic requirement of living organisms for obtaining energy ? |
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Answer» Food and oxygen both Food Carbohydrates and oxygen Oxygen Food |
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| 58067. |
Oxygenated blood found in |
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Answer» Left side of heart Artery...??????? Arteries All artery exept pulmonary artery Heart and lungs artery |
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| 58068. |
what are the three sources of magnetic field lines? |
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Answer» Strength of mfl is highest on the poles Mfl never intersects each other Magnetic field line is outward from North and inward from south |
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| 58069. |
Why copper vessel start shining when rubed with lemon |
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Answer» When copper is left in air it reacts with atmospheric co2 to form a green layer of copper carbonate . When react with citric acid to form copper citrate.thus the copper vessel is cleaned. acid present in lemon-citric acid reacts on a copper vessel Hence the corroded part of copper get withered and dtart shining |
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| 58070. |
Poor conductor of heat metal |
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Answer» Diamond Chromium and lead Mercury and lead |
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| 58071. |
Which is the site of dark reaction in chloroplast |
| Answer» Stroma. It is the fluid matrix in which thyllakoids,interconnected by stroma lamallae | |
| 58072. |
What is chloro alkaline process |
| Answer» The process of electrolysis of sodium chloride is called chloro alkaline process | |
| 58073. |
When an electric current flows through a conductor |
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Answer» When the switch is closed!!! It induce current It produces magnetic field... |
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| 58074. |
Electrical impulses meaning in hindi |
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| 58075. |
Explain the working of biogas power plant |
| Answer» Biogas is a mixture of methane, carbon dioxide, hydrogen and hydrogen sulphide. The major constituent of biogas is methane.Biogas is produced by the anaerobic degradation of animal wastes like cow-dung or plant wastes in the presence of water. The biogas plant has a dome-like structure built with bricks. A slurry of cow-dung and water is made in the mixing tank from where it is fed into the digester. The digester is a sealed chamber in which there is no oxygen. Anaerobic micro-organisms that do not require oxygen decompose or break down complex compounds of the cow-dung slurry. It takes a few days for the decomposition process to be complete and generate gases. The biogas is stored in the gas tank above the digester from which they are drawn through pipes for use. | |
| 58076. |
Hydrogen is a metal or non-metal and why?? |
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Answer» It may be a metal because if it loose its one electron so it become estable Because it is gas Its is a Gas so it is A Non Metal Bcz its a gas Non metal Non.metal |
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| 58077. |
Give the flow chart for the break down of glucose of various pathways |
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Answer» C6 H12 O6_6Co2 +6H2o +energy Check it in notes section. |
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| 58078. |
Plasma is a mixture or compoud? |
| Answer» Mixture | |
| 58079. |
Prove R=2f |
| Answer» Consider a ray of light AB, parallel to the principal axis, incident on a spherical mirror at point B. The normal to the surface at point B is CB and CP = CB = R, is the radius of curvature. The ray AB, after reflection from mirror will pass through F (concave mirror) or will appear to diverge from F (convex mirror) and obeys law of reflection, i.e., i = r.If the aperture of the mirror is small, B lies close to P, BF = PFor FC = FP = PFor PC = PF + FC = PF + PFor R = 2 PF = 2for F=R/2or 2F= R\xa0 | |
| 58080. |
When lead nitrate is heated which gas is evlvoed |
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Answer» No2 gas with brown fumes Nitrogen dioxide and oxygen |
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| 58081. |
Who is albert instine |
| Answer» He is a Geart Scientist Born in Germany | |
| 58082. |
Who is niraj gehlot |
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| 58083. |
What are the types of Binary fission? |
| Answer» In Binary Fission , the parent organism splits to form two new organisms.for example- Amoeba, Paramecium Leishmania, Bacteria etc are reproduce by binary fission.When the amoeba cell has reached its maximum size of growth, then first the nucleus of amoeba lengthen and divide into two parts after that cytoplasm of parent amoeba divides to form two smaller daughter amoeboe .In amoeba fission take place in any plane but in Leihsmania splitting of parent cell during fission takes place in definite place longitudinal with respect to flagellum at its end. | |
| 58084. |
State two functions of bile juice in human body. |
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Answer» \tThe\xa0bile juice\xa0works as a medium to break down fats from larger parts to smaller parts of body for digestion.\t)The\xa0bile juice\xa0also\xa0functions\xa0as a substance that eradicates the germs from the food, making it more hygienic for our body. FUNCTIONS OF BILE JUICE:-* Bile juice makes the food coming from stomach alkaline. * it emulsifies the larger fat molecules into smaller fat granules. |
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| 58085. |
How find valancy |
| Answer» Valency is the combining capacity of an elemenet.FOR EXAMPLE,Oxygen has an atomic number 8.By arranging in shells ,in first shell 2 and in next shell 6,there are 6 electrons in outermost shell.But it needs 8 electrons in its outermost shell to complete its octet.Now oxygen can gain 2 electrons from other element ,so that 6+2=8.Or it can lose 6 elctrons but it is hard for oxygen to lose 6 electrons.HENCE VALENCY OF OXYGEN IS 2. | |
| 58086. |
How can alveoli maximise the exchange of gase |
| Answer» The alveoli are thin walled and richly supplied with a network of blood vessels to facilitate exchange of gases between blood and the air filled in alveoli. They have balloon – like structure that provide maximum surface area for exchange of gases. | |
| 58087. |
A wire of resistance 10 ohm is bent to form a circle.find its resistance. |
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| 58088. |
Zinc react with oxygen what is form |
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Answer» Zinc oxide ZnO Zno ZnO |
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| 58089. |
What are synthetic indicators |
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Answer» Which is made from animals like silk or anyother is called synthetic indicators Methyline orange is an example pH indicator |
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| 58090. |
How to solve mathematical questions of physics |
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Answer» If question is hard u solve it yourself again and again, if question is easy u solve it once and forget,,, due that u have to solve every question many times Try it by hand....U will achieve success By doing stepwise and know about all formula |
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| 58091. |
Two main constituents of cns in human beings |
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Answer» Brain and spinal cord brain and the spinal cord |
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| 58092. |
What is persistatic movement short defination |
| Answer» Peristaltic movement means when food is in our food pipe there is expansion and contraction called peristaltic movement | |
| 58093. |
How we can balance chemical equation? |
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Answer» By LAWS OF CONSERVATION OF MASS. :It states that mad can neither be created nor be destroyed in a chemical reaction By keeping the atoms equal By hit and trial method |
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| 58094. |
What type of reaction are used in black and white photography? Give example |
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Answer» Decomposition reaction are used in black and white photography.For example when silver bromide is exposed to light ,it decomposes to form silver metal and bromine vapours. Decomposition reaction Combination reaction Water |
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| 58095. |
What is corrosion & alloys & galvanisation ? |
| Answer» When the surface of metal get decompose in present of oxygen or water is called corrosion. This is a social technique in which a layer of zinc deposit on the surface of iron. | |
| 58096. |
What will happen if the food chain is disturb |
| Answer» If food chain is disturb then no one be alive ,the greedy people would kill each other for food | |
| 58097. |
What are the double salts ,mixed salts and complex salts? |
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| 58098. |
Why calcium sulphate is known as plaster of paris? |
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Answer» Hor are u Ok It is called plaster of paris bcz it is obtained from gypsum which is mainly found in Paris. |
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| 58099. |
Please explain potential difference |
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Answer» it is amount of work done to move a unit charge fom one point to another point in an electric \'circuit\' The difference in work done to bring a charge from infinity to different points in electric field ,The potential difference between Two point in an electric circuit is defined as The amount of work done in moving a unit charge from One To another point The difference of electrical potential between two points. |
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| 58100. |
What is electro motive force and electromagnetism? |
| Answer» Pd and coulumbic force | |