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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.
| 7951. |
Write the law of constant |
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Answer» It state that ,"in a pure chemical substance ,the elements are always present in definite proportion by mass ." It was given by J proust and is also know as law of definite proportion Constant means having fixed proprtion by mass. For example : - G = 6.673 ( 10 )-11 . There are several examples of constants. The value of constant remains the same. G is said to be gravitational constant. The mass of the earth is 5.97 ( 10 * 10 * 10 * ..... 24 times. ) , remains the same. A chemical compound is always made up of the same elements combined together in the same fixed proportion by mass. |
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| 7952. |
Define the structure of neuron. |
| Answer» Although neurons look complicated, their design is actually quite simple. The neuron is broken up into two major regions:A region for receiving and processing incoming information from other cellsA region for conducting and transmitting information to other cellsThe type of information that is received, processed and transmitted by a neuron depends on its location in the nervous system. For example, neurons located in the occipital lobe process visual information, whereas neurons in the motor pathways process and transmit information that controls the movement of muscles. However, regardless of the type of information, all neurons have the same basic anatomical structure. | |
| 7953. |
Define homogeneous mixturw |
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Answer» When mixture mix together in uniform is known as homogeneous mixture When two matter mix together uniform composition is known as homogeneous mixture Homogeneous mixture is a mixture of different particles of matter within it so that they have the property of uniform composition and can\'t be separated by any physical method like filtration , handpicking. Homogeneous mixtures scatter beam of light means it shows Tyndall effect. |
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| 7954. |
Some aaserstions and reasons |
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| 7955. |
Define mole in terms of mass and number. |
| Answer» Mole in term of mass, volume number and ions. Mole is defined as the amount of a substance, which contains the same number of chemical units as there are atoms in exactly 12 grams of pure carbon-12. | |
| 7956. |
How to atoms exist in nature |
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Answer» Monoatomic : exist in singal atom.. e.g. heleom gas..Deatomic :exist in two atom.. e.g. o2.. Tretra atomic :exist in tree atom ... e.g. o3 ozone. .Pholiatomic :exist in more then four atoms .. e.g. o6... Atom exist in natur in the form of :Monotonic, diatonic, tetra atomic, pholiatomic. ...... |
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| 7957. |
why thre is no atmosphere on earth (ncert natural resources) |
| Answer» how can you say that if there is no atmosphere from where we would get oxygen | |
| 7958. |
What is nature? |
| Answer» The phenomena of the physical quality including plants and animals | |
| 7959. |
What do you mean by atmosphere |
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Answer» Atmosphere it is the fully filled of different gases which help us to breath Atmosphere is our surrounding it made up of different gases . Atmosphere is the envelope of gases which surrounds us. |
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| 7960. |
What is the meaning of neurones |
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Answer» Nerve cells are called neurons It is nerves cell and it helps to informations tp our brain Nerve cells are called NEURONS |
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| 7961. |
difference between O2 and O2- |
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Answer» Among of them + one is cation & - one is anion. + charge and - charge make bond . + and - |
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| 7962. |
What is critical temperature? |
| Answer» the temperature of a gas in its critical state, above which it cannot be liquefied by pressure alone. | |
| 7963. |
What is life span of fungi |
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Answer» Short Life span of fungi is very short |
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| 7964. |
Write Rutherford drawback and JJ Thomson drawback |
| Answer» In ncert | |
| 7965. |
(Chemistry\'s Ques.) What do you mean by saying that Relative Atomic Mass of O=16 u. |
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Answer» Thanks? (but itz too late» I have submitted my HomeWork) Means it has 8 nuetrons and 8 protons |
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| 7966. |
(Related to boilogy)what is the fullform of AIDS |
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Answer» Aquired Immunodeficiency Syndrome Acquire immune deficiency syndrome Acquired Immuno Deficiency Syndrome Acquired immunue deficiency syndrome Acquired immune deficiency syndrome |
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| 7967. |
Which nereve is vrey hard |
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Answer» Thigh Thigh |
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| 7968. |
Egdnfbuyh km mvgdbfsbg |
| Answer» Dec DC HD thfy | |
| 7969. |
What are charges in chemistry |
| Answer» Chemical changes and physical changes | |
| 7970. |
Defferece between speed and velocity |
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Answer» Speed:-1.Distance covered by the body with respect to time,called speed.2.It\'s unit is m/sVelocity:-1. Displacement covered by the body with to time,called velocity.2.It\'s unit is m/s Both have scaler unit but it can zero Speed- 1)The major difference between both are that speed is a scaler quantity.2) The S.I unit is m/s. 3)Speed= Distance/TimeVelocity-1)It is vector quantity.2) The S.I unit is m/s²3) Velocity= Displacement/Time |
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| 7971. |
What mean by atomic mass |
| Answer» Mass of atom is called atomic mass. Since, atoms are very small consequently actual mass of an atom is very small. For example the actual mass of one atom of hydrogen is equal to 1.673 x 10-24 g. This is equal to 0.000000000000000000000001673 gram. To deal with such small nuber is very difficult. Thus for convenience relative atomic mass is used.Carbon-12 is considered as unit to calculate atomic mass. Carbon-12 is an isotope of carbon. The relative mass of all atoms are found with respect to C-12.One atomic mass = 1/12 of the mass of one atom of C-12.This means atomic mass unit = 1/12th of carbon-12 | |
| 7972. |
What is the valency of Mercury |
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Answer» Hg The valency of mercury is hgI hope it helps you ? |
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| 7973. |
Give two observation that show that atom are divisible |
| Answer» Atoms are divisible contrary to the early beliefs that the smallest "indivisible" matter is an atom. When an atom loses its identity it means that they are divisible. Atoms chemically react with other kinds of atoms thus changing their activity. During a chemical reaction, there is an exchange of electrons. When electrons are transferred, that is the very first evidence that an atom is divided: electron is detached to the entire atom. Secondly, nuclear reaction is another proof that atoms are divisible. During nuclear reactions, atoms are either combined (fusion) or separated (fission) to form another kind of element. | |
| 7974. |
From biology; what is the scientific name of human? |
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Answer» humans are called as homosapiens in biology Homosapiens Homo sapiens Homosepians |
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| 7975. |
What is Newton law |
| Answer» Newton has. Three law of motion | |
| 7976. |
How does an excessive pressure affect the human body? |
| Answer» It may result in crushing of some parts of our body. It is not good for our body to remain in excessive pressure conditions | |
| 7977. |
Defination of work and energy |
| Answer» Work-If force applied in a body so, the body start displacement is called workEnergy - A capacity to do work is called energy | |
| 7978. |
Give dufferent between healthy and disease free. |
| Answer» Healthy - (1) A healthy person is always disease free. (2) It depends upon the individual and also on his physical & social environment. (3) It is a state of complete physical,mental and social well bring. Disease Free - (1) A disease free person can be healthy or unhealthy. (2) It is related to the individual only. (3) It is a state of absence of discomfort or deragement in any part of body. | |
| 7979. |
fractional distillation explaination? |
| Answer» This method is used to separate the mixture of two miscible liquids where difference between their boiling points is less than 25 ºC. Also to separate a mixture of two or more miscible liquids for which the difference in boiling points is less than 25 K, fractional distillation process is used, for example, for the separation of different gases from air, different factions from petroleum products etc. The apparatus is similar to that for simple distillation, except that a fractionating column is fitted in between the distillation flask and the condenser. A simple fractionating column is a tube packed with glass beads. The beads provide surface for the vapours to cool and condense repeatedly, as shown in following figure. | |
| 7980. |
How to convert it into mole |
| Answer» There are two formulas for calculating the mole(1) Given mass/Molar Mass(2) No. Of particles/Avogardo numberAvogardo no. 6.022*10 raise the power 23 | |
| 7981. |
What will be the defination of work and energy according to science |
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Answer» Energy is the capability of doing any work. When a force applied on a body causes a displacement, work is said to be done.Capacity to do work is known as energy. Capacity to do work is known as energy. Energy is always equal to work. Work is equal to the force and displacement |
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| 7982. |
Compare the model of an atom given by Rutherford and neils bohr |
| Answer» Rutherford\'s model of an atom:1. There is a positively charged, highly densed centre in an atom called the nucleus. Nearly the whole mass of an atom resides in the nucleus.2.The electrons revolve around the nucleus in circular path.3. The size of the nucleus is very small compared to the size of an atom.Bohr\'s model of an atom:1.An atom is made up of 3 particles electrons, protons and neutrons. Due to the presence of equal number of electrons and protons, atom on the whole is electrically neutral.2. The protons and neutrons are located inside the nucleus due to which nucleus is positively charged.3. The electrons revolve around the nucleus in fixed paths called orbits or shells or energy levels. The energy levels are represented as K,L,M,N or 1,2,3,4,5,.....4. There is a limit to the number of electrons each energy level can hold. It is given by the formula 2n^2 where n is the orbit number .5. Each energy level is associated with fixed amount of energy, the shell nearest to the nucleus having minimum amount of energy and the one farthest having maximum energy.6. There is no change in the energy of electrons as they keeping revolving in the same shell and the atom remains stable. | |
| 7983. |
Calculate nitrogen in the mole |
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| 7984. |
Enumerate important characteristics of kingdom Animalia. |
| Answer» Thallophyata broyopgyta zylophyta | |
| 7985. |
Describe the characteristics of kingdom Plantae. |
| Answer» MulticellularEukaryoticWith cell wallAutotrophic | |
| 7986. |
What is mendalif priodic table |
| Answer» Do yourself | |
| 7987. |
Newton\'s law of motion and their symbols |
| Answer» 1)v=u+at, 2)s=ut +1/2 at², 3)2as=v²-u².Symbol\'ll be m/s² | |
| 7988. |
What is the name of tissue which cannot do its work but do another tissue work |
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Answer» Thanks Do yourself |
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| 7989. |
Calculate the work require to be done to stop a car of 1500 kg moving at a velocity of 60 km/ h |
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Answer» 2083333.33 j A N S W E Rm=1500kgu= 60km/h =60* 5/18 = 50/3m/sv =0m/sw = change in its KE.initial KE =1/2 mu2final KE=1/2mv²w = 1/2mv2\xa0\xa0- 1/2 mu2 =1/2m(v2-u2)= 1/2 * 15000{0- (50/3)2}= - 208333.33J |
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| 7990. |
Calculate teh number of ammonia NH3 molecules present in 85g of NH3? |
| Answer» The gram atomic mass of NH3 is 17gGAM= 1 MOLE of NH3 = 6.022×10 to power 23 moleculesSo 17g = 6.022 × 10 to power 23Which means 85g = (6.022 ×85÷17) × 10 to power 23Answer is 3.011 × 10 to power 24 | |
| 7991. |
how gravitation force holds the solar system |
| Answer» There is no gravitation force in solar system only vaccum | |
| 7992. |
The frequency of a source of sound is 10 hz . How many times does it vibrate in a minute ? |
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Answer» 10 circle per second 600 Hz. |
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| 7993. |
Of a body and force acting and acceleration |
| Answer» | |
| 7994. |
What is urochorxata |
| Answer» Protochordata is further divided into three subphylum : Hemichordata (e.g. Balanoglossus ), Urochordata (e.g. Herdmania) and Cephalochordata (e.g. Branchiostoma) based on the position of notochord. | |
| 7995. |
What is law of chemical combination |
| Answer» chemical combination is two type low of conservation of mass and low of definate propotion in low of conservation of mass .mass nither be created nor destroyed in chemical reaction and low of definate propotion a given compound has the same propotion of its constitution element by mass | |
| 7996. |
Common unit of density |
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Answer» KG per meter cube Soory per Gram par cubic centimetre Kg/m3 Kg/m |
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| 7997. |
What is the difference between plastids and mitrochondria |
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Answer» Plastid is the kitchen of cell and mitochondria are power house of cell .Mitochondrosa release ATP molecule by oxidisation of food.Plastids contain chloroplast , leucoplast etc Plastids are known as kitchen of cells. Mitichondria are called powerhouse of cells. Plastids ara present only in plant cell. Mitochondria is present in both plant and animal cell. Plastids are found only a plant cell. Palstids have their own DNA and ribosomes . Mitochondria are known as powerhouse of cell . It released energy on tha form of ATP and it have their own DNA and ribosomes Plastids are present only in plant cell.Plastids help in photosynthesisMitichondria is present in both plant and animal cell.Mitichondrioa supply energy to cell in the form of ATP. |
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| 7998. |
Write the characteristics of Echinodermata? |
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Answer» Triploblastic ,acelomate, spiny skin, more than two symmetry , skeleton made of CaCO³ .Eg - star fish Their skeleton is made of calcium carbonate |
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| 7999. |
What is the difference between mixture and compound???? |
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Answer» Hii anuska Mixture-when two or more substances mixed on unfixed ratio then it is called mixture.It show the property of the substances that are mixed in it.Compound-when two or more substances are mixed in a fixed ratio to form different substance called compound.Nice question??? |
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| 8000. |
Mam periodic test 2 |
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Answer» Baba gi ka nunu Ka question paper |
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