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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.
| 51201. |
Phir lockdown badh gaya ?? |
| Answer» Yes for two weeks...... | |
| 51202. |
Kya red zone area me taxi clegi ??? |
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Answer» Thanks ansh bro.... No... Thanks anu sis No |
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| 51203. |
What do you mean by nitrification? |
| Answer» Nitrification is a step in the nitrogen cycle.When plants and animals die, their proteins are decomposed by ceratin microorganisms to ammonia. This process is called ammonification. Certain soil bacteria oxidise the ammonia into nitrites and then into nitrates. This process is called nitrification and is carried out by nitrifying bacteria like Nitrosomonas and Nitrobacter. | |
| 51204. |
Write preparation and properties of six salts |
| Answer» Salts\xa0are ionic in nature due to the presence of ions. They are brittle, hard and crystalline solids.\xa0Salt\xa0is white, odorless and it has a salty taste. All potassium (K), ammonium (NH4+) and sodium (Na)\xa0salts\xa0are soluble in water (H2O).\xa0Common salt\xa0is obtained from sea-water by the process of evaporation. Sea water is trapped in large, shallow pools and allowed to stand there. The sun\'s heat evaporates the water slowly and\xa0common salt\xa0is left behind.\xa0Used\xa0as a preservative in pickles and in curing meat and fish.\xa0Used\xa0in the manufacture of soap.\xa0Used\xa0to melt the ice in winter in cold countries.\xa0Used\xa0for making chemical likes washing Soda, baking soda etc. | |
| 51205. |
Give explanation about DNA |
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Answer» It is a unique genetic code beach which has criteria in our body. DNA is a group of molecules that is responsible for carrying and transmitting the hereditary materials or the genetic instructions from parents to offsprings.DNA was first recognized and identified by the Swiss biologist, Johannes Friedrich Miescher in 1869 during his research on white blood cells.The double helix structure of a DNA molecule was later discovered through the experimental data by James Watson and Francis Crick. Finally, it was proved that DNA is responsible for storing the genetic information of a human being. |
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| 51206. |
Difference btw properties of metal and non metal |
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| Answer» | Metals | Nonmetals | \tThese are solids at room temperature except mercuryThese exist in all three statesThese are very hard except sodiumThese are soft except diamondThese are malleable and ductileThese are brittle and can be breakdown into piecesThese are shinyThese are non-lustrous except iodineElectropositive in natureElectronegative in natureHave high densitiesHave low densities\t|
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| 51207. |
How many miliamperes and microamperes are there in 20 ampere? |
| Answer» 1000 milliamperes makes 1 ampereSo, 20000 milliamperes makes 20 ampere | |
| 51208. |
How are modes of reproduction different in unicellular and multicellular organisms |
| Answer» In unicellular only two types of DNA copies are formed...and in multicellular so many types of DNA copies are formed... | |
| 51209. |
What happen if there is deficiency of nutrition in our body |
| Answer» Digestion problem, skin disorder, defective bone growth,many related to health problem happens due to lack of nutrients in our body | |
| 51210. |
What is beri- beri |
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Answer» High lack of vitamin B A desase due to lack of vitamin B. |
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| 51211. |
What is ceritean |
| Answer» able to be firmly relied on to happen or be the case. | |
| 51212. |
What is holgen?? |
| Answer» These are group of atom which decides the reactivity of substance eg - bromine , iodine etc.... | |
| 51213. |
What is enzyme?? |
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Answer» Thanks bro..... Engymes are bio catalist Thanks bro / sis..... Enzymes are the protiens that speeds the rate of chemical reactions________HOPE THIS WILL HELP U TO UNDERSTAND?? The food we eat is complex substance so it is necessary to break these complex substances into simpler ones for their easy digestion, for this some bio-catalysts are used known as enzymes |
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| 51214. |
How to identify that this salt is acidic, basic or neutral? |
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Answer» But if salt is written in equation so how can we identify it and we can\'t use indicator on equation. By using indicator........ |
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| 51215. |
which colour does phenolphthalein give with a base |
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Answer» Pink Phenolphthalein:Colour in acidic solution: ColourlessColour in basic solution: Pink |
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| 51216. |
When the temerature increases why resistivity increses???(it is of physics) |
| Answer» When the temperature is increased, the atoms of the material vibrate and it makes the valence electrons present in the valence band to shift to the conduction band. This in turn increases the conductivity of the material. When the conductivity of the material increases, it means that the resistivity decreases and so the current flow increases. Thus some insulators at room temperatures changes to conductors at high temperature. For insulators they have a negative temperature co – efficient. So the value of temperature co –efficient of resistivity, α is\xa0negative.\xa0 | |
| 51217. |
What are the advantages of heating effect of electric current |
| Answer» Advantage of using an electromagnetic energy source is that you can generate either AC or direct-current (DC) electrical power. As noted before, an AC generator uses changing magnetic fields to create AC electrical power. | |
| 51218. |
what is the scientific term used for movement in plants |
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Answer» Locomotion Locomotion |
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| 51219. |
Plz answer, what does skeltal chemical equation represent? |
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Answer» They are unbalanced chemical equations ( ◜‿◝ )♡ Unbalanced equations?? Skeletal equation are the equation which represents the reactants and the products involved but which is not balanced in terms of stoichiometric coefficient. In simple words, skeletal chemical equation is an unbalanced chemical equation.The electrolytic decomposition reaction of water is,H2O → H2 + O2 → Skeletal2H2O → 2H2 + O2 → balanced |
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| 51220. |
What is Oxidation ?? |
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Answer» Oxidation is adding of oxygen and reducing hydrogen Reduction of oxygen and addition of hydrogen Oxidation is the loss of electrons during a reaction by a molecule, atom or ion.Oxidation occurs when the oxidation state of a molecule, atom or ion is increased. |
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| 51221. |
How many isomers of septane |
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Answer» What are they 23 |
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| 51222. |
Plaster of paris chemical formula |
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Answer» CASO4.1/2H2O CaSO4 1/2H2O CaSO4 |
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| 51223. |
Pb 3 04+ 84cl gives you 3pbhcl 2 +cl2+4420 |
| Answer» | |
| 51224. |
What is difference between liquid and aquarium. |
| Answer» Liquid is a state of matter that has no fixed shape but has a definite volume. An aqueous solution is a solution in which a substance is dissolved in water. ... Aqueous is another term that is used in science, which refers to a substance that is dissolved in water. | |
| 51225. |
What is neutralization REn |
| Answer» | |
| 51226. |
What is focal point |
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Answer» It is a point on principal axis where light rays originating from a point on the object converge . It is a point onto which collimated light rays parallel to the axis are focussed. Ok understood .... The point where all rays parallel to principle axis meet ( case of concave ) or appear to meet (case of covex).if known as focal point or focus..... |
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| 51227. |
How is the composition of lymph different from blood plasma.List 2 functions of lymphatic system |
| Answer» Blood is a red coloured liquid which circulates in our body. It is red because it contains a pigment called haemoglobin in its red cells.\xa0The main components of blood are:(i) Plasma: It carries all the dissolved substances such as proteins, digested food, common salt etc from one part to another part of the body.(ii) Red blood corpuscles (RBC): It carries oxygen from the lungs to all the cells of the body.(iii) White blood corpuscles (WBC): It fights infection and protects us from diseases.(iv) Platelets: It helps in the coagulation of blood in a cut or wound.\xa0Lymph is a light yellow liquid. It is a medium of circulation in human body which flows only in one direction - from body tissues to the heart.\xa0 | |
| 51228. |
ലൈഫ് process chapter topic digestion and respiration very important question s |
| Answer» | |
| 51229. |
Function of all male reproductive system |
| Answer» The human male reproductive system consists of:\tTestes - Are the primary reproductive organs in males which are in pair. These are oval shaped organs which lie outside the abdominal cavity. It makes the male *** cells called sperms and produces male *** hormones called testosterone. The testes are situated in the scrotal sac outside the main body cavity because the formation of sperms requires a lower temperature than the normal body temperature.\t******* - Is a muscular pouch which houses the testes. It is present outside the abdominal cavity and maintains a lower temperature than the normal body temperature.\tEpididymis - The sperms formed in the testes goes into a coiled tube called epididymis which stores the sperms temporarily.\tVas Deferens (sperm duct) - It is a long tube which carries the sperms from epididymis to another tube called urethra.\tSeminal vesicles and prostrate gland - Both these glands are present along the path of vas deferens and add their secretions to sperms which allows them to transport easily.\t***** - It is an organ which passés the sperms from the man\'s body into the ****** in the women\'s body during mating.The secretions of seminal vesicles and prostrate gland provide nutrition to the sperms and also make their transportation easier by secreting a thick liquid. | |
| 51230. |
Function of all female reproductive system |
| Answer» \tA pair of Ovaries\tOne on each side of uterusProduce female *** cell (ovum/ova)Secrete female hormones estrogen & progesterone\t\t\tFallopian tube\tExist in pairs , originating from uterus extending up to each ovaryReceives ovum from ovary\t\t\tUterus\tPear-shaped muscular hollow structureFoetus develops here\t\t\tCervix\tNarrow lower part of uterus\t\t\t******\tTube like structureSperm discharge occurs hereActs as birth canal\t\t | |
| 51231. |
Electroyis of waterIs a decomposition reaction The mole ratio of hydrogen and oxygen Gages |
| Answer» 1:3 | |
| 51232. |
write the feachures of chemical reaction with example ? |
| Answer» The substances which take part in a chemical reaction are called reactants. The new substances produced as a result of chemical reaction are called products. In a chemical reaction, reactants are transformed into products. The burning of magnesium in air to form magnesium oxide is an example of a chemical reaction. | |
| 51233. |
What is Voltmeter? |
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Answer» It is a instrument that used to measure electric potential current An instrument for measuring electric potential in volts. |
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| 51234. |
What is photosynthetic? |
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Answer» *Photosynthesis*? It is a process from which green plants make their food with the help of soil,water and sunlight The process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. |
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| 51235. |
Meaning of diffusion |
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Answer» Movement of water molecules substance from a region of lower water concentration to a region of higher water concentration Movement of substances from a region of higher concentration to a region of lower concentration |
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| 51236. |
different between Belgium and sri Lankan |
| Answer» Belgium1.They adopted a policy of power sharing.\xa02. They gave equal powers to all communities.. minor or major doesn’t matter3.It solved the problem.SriLanka1)They adopted a policy of Majoritarioism.2) They gave preferences to the majority Sinhala group alone, disregarding the minority3). It only increased the problem | |
| 51237. |
Which of the following fuse should be used for an electric iron of 1KM when Operated at 220V?? |
| Answer» For us to get the fuse that is suitable, we must get the total current flowing through the circuit.The formulae to get this is :Power(watts) =Voltage(volts) ×current(amps)In this case power=1000watts, votage=220vCurrent =1000/220=4.55AThe suitable fuse is 5A since it is slightly above the current flowing through the circuit. | |
| 51238. |
Where bile juice is present |
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Answer» Gall bladder in liver Liver It is present in gall bladder in liver. Liver Bile juice is secreted in liver. |
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| 51239. |
What is a hetrotroplhic |
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Answer» Hetrotrophics are the organisms which depends on other oganisms for their food Heterotrophic nutrition is the mode of nutrition in which an organism depends on other living organisms for food.Depending on the type of food, heterotrophs can be divided into 3 types-\tCarnivores- organisms which eat only animals. Example- lion, snake.\tHerbivores- organisms which eat only plants. Example- rabbit, elephant.Omnivores- organisms which eat both plants and animals. Example- crow, dog. |
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| 51240. |
Name the substence present in gastric juice.Explain their function. |
| Answer» Gastric juice contains three substances: hydrochloric acid, enzyme pepsin and mucus.Their functions are:\tHydrochloric acid in the stomach is used to make the medium acidic to facilitate the action of the enzyme pepsin and to kill germs if any.\tEnzyme pepsin digests proteins to convert them into peptones.\tThe mucus helps to protect the stomach wall from its own secretions of hydrochloric acid. | |
| 51241. |
What is photons |
| Answer» Photons are the smallest discrete amount or quantum of electromagnetic radiationIt is the basic unit of all light | |
| 51242. |
Plz tell me what happened to air when it reaches in the aleveoli ??? |
| Answer» These air sacs, called alveoli, are responsible for gas exchange. ... The oxygen in inhaled air passes across the thin lining of the air sacs and into the blood vessels. This is known as diffusion. The oxygen in the blood is then carried around the body in the bloodstream, reaching every cell. | |
| 51243. |
Which sides of brain control speech |
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Answer» Broca\'s areas Or in simple words the left hemisphere. Kk☺ In general, the left hemisphere controls speech, comprehension, arithmetic, and writing. The right hemisphere controls creativity, spatial ability, artistic, and musical skills. |
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| 51244. |
Science 1 chapter teach |
| Answer» What is the meaning of reproduction orgen in हिंदी | |
| 51245. |
How the current flows in a wire |
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Answer» Dheeme Dheeme Through conductor Due to the locomotion of electron The electrons moving through the wire are called the "electric current" which is measured in amperes, or "amps" for short. Since Electricity is the flow of electrons, electricity will flow from negative charge to a positive charge. |
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| 51246. |
Decomposition of vegitable matter in to compist is an example of which reaction |
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Answer» Exothermic reaction Exothermic reaction |
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| 51247. |
In a reaction pbo +c is equel toPb+Co c act as an oxidizing agent |
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Answer» No pbo act as oxidizing agentBecause pbo is giving itts o2 and reducing itself So pbo is oxidizing agent Yes it act as an oxydizing agent. |
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| 51248. |
Write the chemical which shows formation of water |
| Answer» H² +O²=2H²O | |
| 51249. |
Definition of skeletal equation |
| Answer» The equation in which there is unequal numbers of atom on both sides i.e., reactants and products are known as skeletal equation. It is also known as unbalanced equation.Example: Magnesium + Oxygen ------> Magnesium oxide Mg + O2------>MgO. ( Skeletal equation) | |
| 51250. |
Explain reproductive system |
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Answer» ? The reproductive system is a system of *** organs within on organism which work together for the purpose of sexual reproduction |
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