InterviewSolution
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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.
| 2651. |
What is the meaning of \'manu\' ? |
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Answer» Hand I don\'t know |
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| 2652. |
How will concentration of H3O+ ion change on dillution of an acid?? |
| Answer» because adding water which is an neutral is doing oxidation | |
| 2653. |
What is the difference between atomic mass and mass number |
| Answer» Atomic mass is the weighted average mass of an atom of an element based on the relative natural abundance of that element\'s isotopes. The mass number is a count of the total number of protons and neutrons in an atom\'s nucleus. | |
| 2654. |
What is emulsification? Justify your answer with an example in context with digestive system |
| Answer» The breakdown of fats globles in the ordinal into Tiny droplets which provide the larger area on which enzyme pancreatic lypas help to broke the fat into tiny droplets.bas... | |
| 2655. |
Repoduction in flower |
| Answer» Good | |
| 2656. |
What is Mean by regelation |
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Answer» It is the phenomenon of melting under pressure and refreezing when pressure is reduced. Eg: if a thin wire is tied around an ice block and attached to a heavy weight slowly and gradually the wire will pass through the entire block . a phenomenon in which the freezing point of water is lowered by the application of pressure; the melting and refreezing of ice, at constant temperature, caused by varying the pressure. |
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| 2657. |
Define 1dioptre |
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Answer» 1 dioptre is a power of lens whose focal length is 1metre. The SI unit of power of lens is \'dioptre\' is denoted by the letter D. The SI unit of power of lens is dioptre which is denoted by the letter D. 1 dioptre is defined as the power of a lens of focal length 1 metre. |
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| 2658. |
Give the formula and an example of displacement reaction |
| Answer» A displacement reaction is the one wherein the atom or a set of atoms is displaced by another atom in a molecule. For instance, when Iron is added to a copper sulphate solution, it displaces the copper metal.A + B-C → A-C + BThe above equation exists when A is more reactive than B.A and B have to be either:\tHalogens where\xa0C\xa0indicates a cation.\tDifferent metals wherein\xa0C\xa0indicates an anion. | |
| 2659. |
What is coreation |
| Answer» Corrosion is the process in which metals are eaten up gradually by the action of air, moisture or a chemical (such as an acid) on their surface. Rusting of iron metal is the most common form of corrosion. During the corrosion of iron, iron metal is oxidised by the oxygen of air in the presence of water (moisture) to form hydrated iron oxide called rust. | |
| 2660. |
Define spherical mirror? |
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Answer» A reflecting surface which is spherical in shape A mirror or reflecter is an object such that each narrow beam of light incides on its surface bounce in singal direction. Spherical mirror is a object that beacuse of its surface light can reflected in different ways it has two parts 1)concave mirror 2) convex mirror A sperichal mirror is a mirror which has a shape of a piece cut out of a spherical surface. A mirror whose reflected surface is curved is called Spherical mirror |
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| 2661. |
What criteria do we use to decide whether something is alive Answer in a short way please |
| Answer» Main point and very short answer is all criteria about respiration which includes the formation of ATP and circulation of the blood by pumping of heart. If organism has circulation and respiration then it is consider to be alive. | |
| 2662. |
How we can say that sodium is a metal |
| Answer» Sodium is a metal as it has tendency to lose electrons . The substances which have (1,2,3) electrons in the outermost shell are called as metals. It\'s not just a metal, it\'s one of the most metally metals on the periodic table. | |
| 2663. |
Why iron core is preferred over steel to make electromagnet. |
| Answer» Soft iron core is used in electromagnets because they get easily magnetised/demagnetised when current is flowing or not flowing along the solenoid. Whereas, steel is a permanent magnet and does not lose it\'s magnetization even when the current is switched off. Hence, soft iron core is preferred over steel core. | |
| 2664. |
The magnification produced by a plane mirror is +1 .what does that mean? |
| Answer» It means the image formed by plane mirror is real ,similar to an object ... | |
| 2665. |
How do burning of fossil fuels causes air pollution |
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Answer» Because burning of fossil fuels release large amount of harmful gases cause air pollution When fossil fuel burn it produces smoke which is harmful for environment as it contain many harmful gases like nitrogen dioxide,carbon dioxide, chloroflorocarbon etc.These harmful gases pollutes our environment and thus it is major cause for increasing air pollution in environment. |
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| 2666. |
I wanna get a ppt on coronavirus |
| Answer» Search on google or chrome | |
| 2667. |
Which one of the element is have in all acids |
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Answer» Hydrogen Hydrogen gas |
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| 2668. |
What happens to an acids or in a base water solution? |
| Answer» They get diluted. | |
| 2669. |
Hiw how to balance a chemical equation |
| Answer» By counting the no. Of atoms on both sides we have to balance the equation | |
| 2670. |
Q)Write all the quantum numbers for sodium z=11 |
| Answer» The\xa0number\xa0of electrons of\xa0sodium\xa0atom is\xa011\xa0of which 2 occupy the n=1 level, 8 occupy the n =2 level and 1 occupies the n= 3 level according to the rule that the maximum\xa0number\xa0of electrons a level can occupy is . So the\xa0quantum numbers\xa0for n = 3, l = 0, m=0, s= +/- 1/2.\xa0For example,\xa0sodium\xa0is in the third period of the table, so its principal\xa0quantum number is\xa03. Denote the principal\xa0quantum number\xa0as n and the second\xa0number, shape, is anywhere from 0 to n-1. So for\xa0sodium, the second\xa0quantum numbers\xa0are 0,1 and 2. | |
| 2671. |
Which element is unreant |
| Answer» Cupper | |
| 2672. |
What is the structure of neuron? |
| Answer» Neurons are the fundamental unit of the nervous system specialized to transmit information to different parts of the body.A neuron varies in shape and size depending upon their function and location. All neurons have three different parts – dendrites, cell body and axon.Parts of NeuronFollowing are the different parts of a neuron:DendritesThese are branch-like structures that receive messages from other neurons and allow the transmission of messages to the cell body.Cell BodyEach neuron has a cell body with a nucleus, golgi body, endoplasmic reticulum, mitochondria and other components.AxonAxon is a tube-like structure that carries electrical impulse from the cell body to the axon terminals that passes the impulse to another neuron.SynapseIt is the chemical junction between the terminal of one neuron and dendrites of another neuron. | |
| 2673. |
Identify the compound oxidized in the following reactionH2S (g) + Cl2→S (s) + HCl (g) |
| Answer» Loss of electrons | |
| 2674. |
What do you mean by global warming ? |
| Answer» Global warming is a gradual increase in the earth’s temperature generally due to the greenhouse effect caused by increased levels of carbon dioxide, CFCs, and other pollutants.Global warming is the phenomenon of gradual increase in temperature near the Earth’s surface. This phenomenon has been observed over the past one or two centuries. This change has disturbed the climatic pattern of the earth. However, the concept of global warming is quite controversial. But, the scientists have provided relevant data in support of the fact that the temperature of the Earth is rising constantly. | |
| 2675. |
Why acid and basis show their respective behaviour |
| Answer» The\xa0acidic behaviour of acid\xa0is due to the presence of hydrogen ions. The\xa0acids\xa0will not show its\xa0acidic behaviour\xa0in the absence of water, this is because\xa0acids\xa0do not dissociate to produce H+(aq) ions in the absence of water.\xa0The\xa0acidic behavior\xa0of an\xa0acid\xa0is due to the\xa0presence\xa0of hydrogen ions [H+\xa0(aq) ions] which are produced\xa0only\xa0when\xa0acids\xa0are dissolved in\xa0water. In the absence of\xa0water,\xa0acids do\xa0not produce hydrogen ions and hence\xa0do\xa0not\xa0show acidic behavior.\xa0When an\xa0acid\xa0and a\xa0base\xa0are placed together, they\xa0react\xa0to neutralize the\xa0acid and base\xa0properties, producing a salt. The H(+) cation of the\xa0acid\xa0combines with the OH(-) anion of the\xa0base\xa0to form water. The compound formed by the cation of the\xa0base\xa0and the anion of the\xa0acid\xa0is called a salt. | |
| 2676. |
What do you mean by immunosuppression? |
| Answer» Immunosuppression\xa0(IH-myoo-noh-suh-PREH-shun) Suppression of the body\'s immune system and its ability to fight infections and other diseases.\xa0Immunosuppression\xa0may be deliberately induced with drugs, as in preparation for bone marrow or other organ transplantation, to prevent rejection of the donor tissue.\xa0Immunosuppressant\xa0drugs are a class of drugs that suppress, or reduce, the strength of the body\'s immune system. Some of these drugs are used to make the body less likely to reject a transplanted organ, such as a liver, heart, or kidney. These drugs are called antirejection drugs.\xa0Examples\xa0of persons with weakened immune systems include those with HIV/AIDS; cancer and transplant patients who are taking certain immunosuppressive drugs; and those with inherited diseases that affect the immune system (e.g., congenital agammaglobulinemia, congenital IgA deficiency). | |
| 2677. |
How is the resistance of a wire affected, if 1. Its length is doubled.2. Its radius is doubled. |
| Answer» (a) Resistance of a wire is directly proportional to the length of a wire; so if the length is doubled, resistance is also doubled.(b) Resistance of a wire is inversely proportional to the area of cross-section the wire. Thus, if radius is doubled, area increases four times and hence the resistance becomes one-fourth. | |
| 2678. |
industrial application of combination reaction |
| Answer» Combination reactions are very much applicable in chemical industry, following are examples:-\tHydrogen gas and chlorine gas is applied in making hydrochloric acid .\tH2 + Cl2 → 2HCl\tThe rusting of iron can also be categorized as combination reaction .\tBurning of coal : C (Solid) +O2 → CO2\tDischarging of a battery is usually a combination reaction. | |
| 2679. |
Amoeba means what |
| Answer» Amoeba is unicellular organism. | |
| 2680. |
Name a gas use produce in photosynthesis |
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Answer» Corbondioxcide is used in the process of photosynthesis by plants in the presence of sunlight ,water and nutrient from soil.By product in that process is oxygen gas which is known as life gas for us.therefore all said save trees..... Carbon dioxide Carbon dioxide Answer:\xa0OxygenExplanation:Oxygen is released during the process of photosynthesis. Photosynthesis is the process in which green plants produce glucose. It involves the conversion of carbon dioxide gas, water, and minerals the plants take in from their surroundings into sugar and gaseous oxygen. Photosynthesis involves the intake of carbon dioxide and the release of oxygen. The release of oxygen is due to photolysis of water in order to fill the gap in the photosystem created by the excitement of electron.\xa0 |
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| 2681. |
Enlist two functions of bile juice of liver |
| Answer» Bile helps to emulsify fats (increasing surface area to help enzyme action), and thus aids in their absorption in the small intestine. It also makes the acidic food coming from the stomach alkaline, so as to enable the action of pancreatic enzymes. | |
| 2682. |
Why the nutrition is important for any living organisms? |
| Answer» Nutrition\xa0is the essential organic nutrients\xa0living organisms\xa0require for growth, maintenance, reproduction and repair. This is an essential process for theorganism\'s\xa0survival.\xa0Living organisms\xa0require energy to survive; this energy is derived from nutrients, or food. | |
| 2683. |
why does acid rain occur? |
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Answer» Acid rain occurs due several acidic fumes which relase from factories like sulphur dioxide etc or toxic gases. The rain known to be acidic when its pH reaches less than 5.6 When several type of Toxic gas sich as choloro floro carbon , carbon monoxide , relesed by soe and lether factory or get mixed in air. and , when rain drop fall and mix with it .Then acid rain occurred. |
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| 2684. |
What is hydrogen formula |
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Answer» H20 H2 H2 H2 |
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| 2685. |
I have problem in science chapter 6 life process |
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Answer» You can refer to notes or can see video of this chapter on green board( youtube) What problem |
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| 2686. |
Name the smallest cell |
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Answer» pleuro pneumonia-like organism (PPLO) Mycoplasma. The smallest cell is Mycoplasma (PPLO-Pleuro pneumonia like organims). It is about 10 micrometer in size. The smallest type of cell in the world is the mycoplasma bacterium with only a diameter of 10µm (micrometre). |
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| 2687. |
Meaning of buyancy |
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Answer» It is that property of materials which makes them float. Ok bro ? It is upward thrust that acts on an object in water. Which results the objet to float on surface of water depending on it\'s wieght and density... |
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| 2688. |
What is the difference between total resistence, equivalent resistence and effective resistence? |
| Answer» Effective resistance is defined as the resistance to an alternating current, expressed as the ratio of the power dissipated to the square of the effective current. Effective resistance varies with the frequency of the signal. Equivalent resistance is defined to a set of resistors or components having resistance only. | |
| 2689. |
Zinc and aluminium do not corrode because |
| Answer» Aluminium and zinc react with moist air to form a thin protective layer of oxide on their surfaces. This Iayer prevents further corrosion of the metals.\xa0Aluminum unlike iron and steel,does not rust or corrode in moist conditions. Its surface is protected by a natural layer of aluminium oxide. This prevents the metal below from coming into contact with air and oxygen. | |
| 2690. |
Does gravity of earth contain any charge ? |
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Answer» Yes gravitational energy No |
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| 2691. |
Non Medical or commerce ma s kya lu anybody help me or guess out |
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Answer» Commerce kro kyunki non med mein chem aur bio bhi hoti hai Commerce Ya chemistry may bhe hai You have interest only in physics Ma 11 ma ho gi OK physics ma interest ha or banking ma bhi Sci may interest hai toh non medical and nhi hai toh commerce as simple as that |
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| 2692. |
Why is the rate of breathing faster in aquatic organisms than in terrestrial organisms |
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Answer» Becuz in water there is dissolved oxygen n only 1% of oxygen is available to them while terrestrial animals have 21% of oxygen available to them Human |
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| 2693. |
Write the functions of spinture muscles |
| Answer» | |
| 2694. |
Power house of cell |
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Answer» Mitochondria Mitochondria Mitochondria Mitochondria |
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| 2695. |
What is black hole |
| Answer» Kaala छेद | |
| 2696. |
What is photosythesis |
| Answer» | |
| 2697. |
What are catalysts?? |
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Answer» Any example Catalyst is a substance which speeds up the reaction or slows down the reaction |
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| 2698. |
What is plasma membrane ? |
| Answer» Cell membrane is commonly known as plasma membrane. | |
| 2699. |
All notes ch 2 |
| Answer» | |
| 2700. |
Barium +potassium=barium +potassium |
| Answer» | |