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.
| 67501. |
Whay coke is better fuel than charcoal |
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Answer» Honey see if answer of question down than this question is right Charcoal is black substance formed by heating of wood ,it is also a type of coal known as charcoal so we can call it as coal To coke ke place par charcoal Laga lo It produces less smoke and ash as compared to coal. Coke is be.... .............bcoz it has high calorific value than coal. |
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| 67502. |
Honey i said charcoal not coal |
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| 67503. |
What type of holozoic mode of nutrition??? |
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Answer» The mode of nutrition in which an organism takes in solid food eg humans He/she is thanking me Whose id starts from rohi The process of from eating food and upto excretion is called holozoic mode of nutrition |
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| 67504. |
Explain light reaction and dark reactions occurs in leaf of green plants. (3 marks question) |
| Answer» Light reaction - it takes place in granum or thyllakoid. During light reaction photolysis of water takes place.The energy released during this get utilised by plants to prepare organic food.Dark reaction - it takes place in stroma . It is a light independent reaction. During this reaction co2 is reduced into glucose by making the use of energy relased during light reaction.. | |
| 67505. |
How is glacial acetic acid different from acetic acid provided in lab? |
| Answer» Glacial acetic acid is the pure form of ethanol, so it freezes and called glacial acetic acid . But in lab, acetic acid there is a slight impurities present,. So it doesn\'t freezes and thus it is different from acetic acid | |
| 67506. |
Why denatured alcohol may cause blindness. |
| Answer» denatured alcohol is pure alcohol means methanol which is poisonous for us . So it May cause blindness as our eyes are most sensitive organ | |
| 67507. |
A.c. generator principle and working in brief |
| Answer» AC. Generator:\xa0It is a device which converts mechanical energy into alternating form of electrical energy.\xa0Principle: AC generator works on the principle of electromagnetic induction. When a closed coil is rotated in a uniform magnetic field with its axis perpendicular to the magnetic field, the\xa0magnetic field lines passing through the coil change and an induced emf and hence a current is set-up in it.\xa0Construction:\xa0It consists of the following main parts:1. Field magnet: It is a strong horse shoe-type permanent magnet with concave poles.2. Armature: ABCD is a rectangular armature coil. It consists of a large number of turns of insulated copper wire wound on a soft iron cylindrical core. It can be rotated about an axis perpendicular to the magnetic field of the field magnet.3. Slip rings: These are two brass rings S1\xa0and S2\xa0rigidly connected to the two ends of the armature coil. As the coil rotates, slip rings also rotate about the same axis of rotation.4. Brushes: These are two graphite rods B1\xa0and B2\xa0which are kept pressed against the slip rings S1\xa0and S2. Through these brushes, the current induced in the armature coil is sent to the external circuit.\xa0\xa0Fig.\xa0A.C. generatorWorking:\xa0As shown in Fig, suppose the armature coil ABCD is in the horizontal position. Now the coil is rotated clockwise. The coil cuts the magnetic lines of force. The arm AB moves upwards while the arm CD moves downwards. According to Fleming’s right hand rule, the induced current flows from A to B in arm AB and C to D in arm CD i.e., the induced current flows along ABCD. The induced current flows in the circuit through brush B2\xa0to B1.After half the rotation of the armature, the arm CD moves upwards and AB moves downwards. The induced current now flows in the reverse direction i.e., along DCBA. The current flows from B1\xa0to B2. Thus the direction of current in the external circuit changes after every half rotation. Such a current which changes its direction after equal intervals of time is called alternating current. This device is called A.C. generator. | |
| 67508. |
Explain the cleansing action of soaps and detergents. |
| Answer» When soap is dissolved in water, its hydrophobic ends attach themselves to dirt and remove it from the cloth.First, the molecules of soap arrange themselves in micelle formation and trap the dirt at the centre of the cluster.These micelles remain suspended in water like particles in a colloidal solution.The various micelles present in water do not come together to form a precipitate as each micelle repels the other because of the ion-ion repulsion.Thus, the dust particles remain trapped in micelles (which remain suspended) and are easily rinsed away with water.\xa0Hence, soap micelles remove dirt by dissolving it in water. | |
| 67509. |
What is (p4. In question. Ph |
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| 67510. |
Why are oxides of carbon like CO CO2 are not considered to be organic compounds? |
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Answer» Because almost all living things are made you of water and carbon. Thus the origin of many organic compounds is that they r produced by living organisms. They contain carbon bonded to hydrogen. They have hydrogen and carbon both But then hydrogen carbonates are not organic compounds Because hydrogen and carbon both should be there |
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| 67511. |
What is valence electrons |
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Answer» Electrons present in the outermost shell are called valence electrons. Electrons present on the ladt shell |
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| 67512. |
Why do exothermic reaction |
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Answer» The reaction in which we get + heat , + energy written in the products is called exothermic reaction. E.g-CaO + H2O ---> Ca(OH)2 + heat Reaction in which heat is liberated |
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| 67513. |
Functions of cerebrospinal fluid |
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Answer» Ya To provide shock absorption It is a shock absorbing fluid present in the brain. |
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| 67514. |
Are we allowed to take a waterbottle to board exams |
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Answer» Yes but transparent Ofcourse |
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| 67515. |
What is meant by photolysis? |
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Answer» The process of breaking down of water molecule using solar energy absorbed by chlorophyll molecules is called photolysis in the first stage of photosynthesis light from the Sun is first absorbed by the chlorophyll in the leaf. this light energy is then used to produce ATP and to split water molecules to form oxygen and hydrogen this. splitting of the water molecules to form oxygen and hydrogen is referred to as photolysis.Hope this will help you |
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| 67516. |
Explain all the physical factors affecting ecosystem........... |
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Answer» Biotic factors : an ecosystem is a community of organisms that interact with each other and with abiotic and biotic factors in their environment.Abiotiv factors are chemical and physical factors such as temperature, soil composition and climate along with amount of sunlight salinity, And pH. Light, atmospheric gas ko chod diya apne..... Temperature, air ,land , climate |
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| 67517. |
Is it safe to but pdf books from this website? Do they always provide the downloading link? |
| Answer» Yes | |
| 67518. |
Esterificaton ki equation Kya h |
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Answer» CH3COOH+C2H5OH--->CH3COOC2H5+H2O(In the presence of Conc.H2SO4) Ch3COOH + C2H5OH -->CH3COOC2H5+H2O |
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| 67519. |
Forests are biodiversity hot spots justify the statrment |
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Answer» Because, they have varieties of flora and fauna Bcs they contain huge amount of living organisms, like animals trees Because they contain variety of organism.... |
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| 67520. |
What is the full form of NDA PH |
| Answer» Nicotinamide adenine dinucleotide phosphate | |
| 67521. |
Explain the functions of heart |
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Answer» Heart is one of the most important organ of the human body because both Oxygen and Carbon dioxide have to transported by the blood the heart has different chambers to prevent oxygen rich blood mixing with the carbon dioxide rich blood firstly oxygen rich blood is from lungs come to the thin walled upper chamber on the left Atrium the left Atrium relaxes and left ventricle open now it pump the blood to the rest of the body the where is collected deoxygenated blood and take it to the heart from the heart it goes to lungs for purification hope this will help you Used for pumping blood Pumps blood |
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| 67522. |
Describe the important steps in muscle contraction |
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| 67523. |
What is the role of seminal vesicle and prosted gland in male reproductive system |
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Answer» These glands give nourishment to the sperms and helps in the locomotion of sperms. They add their secretion to the sperms and now this is called as semen. They secrete fluid for the easy movement of sperm Its adds needed proteins and helps in the movement of sperms |
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| 67524. |
Define genetic drift and gene flow |
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| 67525. |
What is electronic motor |
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Answer» Its a device which converts electrical energy into mechanical energy Electric motor is a device which converts electrical energy into mechanical energy...? |
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| 67526. |
What is mattlurgy |
| Answer» Its a process of extracting metals into their purest fform. | |
| 67527. |
Why two carbon atoms cannot be linked by more than three covalent bonds? |
| Answer» A carbon atom has atomic number 6.It\'s electronic configuration is 2,4To become stable it shares it\'s 4 electrons.Two carbon atoms when linked together share 1 electron.After it now 3 electrons are left. Then these 3 electrons link by covalent bond to other atoms.So only 3 covalent bonds can be formed | |
| 67528. |
Give a example of a carbon compound containing two covalent bonds and twu lone pairs. |
| Answer» That is oracle | |
| 67529. |
What is hepatitis B . And this is chronic one? |
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Answer» Hepatitis B is a serious liver infection caused by the hepatitis B virus that\'s easily preventable by a vaccine. It can be chronic also based on the sitiation if it lasts for like more than 6 months in an adult. Hepatitis B is a viral disease caused by a hepatitis .it is chronic |
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| 67530. |
How to draw ionic bond structure for isometane, isobutyne |
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| 67531. |
What is the colour of lead iodide |
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Answer» Ya u r right I think yellow |
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| 67532. |
which part of the pea plant is homologous to its leaflets ? |
| Answer» Dendrite | |
| 67533. |
What is another name of presbyopia ? |
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Answer» Old age hypermetropia no its not long sightedness Long and short sidness O sorry it\'s wrong Long sightedness |
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| 67534. |
Name the hydrocarbons other than alkane, alkene, alkyine |
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Answer» Alkyl Add cyclo with each |
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| 67535. |
What is another name of hypermetropia? |
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Answer» Farsightedness Far sightedness..... Far sightedness longsightedness |
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| 67536. |
If v cut the tails of mice if regenerate again.. Why? What\'s the reason |
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Answer» Actually Ayush I m saying that the cutting of tail of mice is a acquired trait it is not inherited...so we can say that the in the next generation we ll not get the tail of the mice because cutting the tails of mice does not change the genes of their reproductive cell. I think that\'s u were saying too? No niharika When we cut the tail of a mice the it\'s physical appearance change not the DNA so in next generation the tail come again Beacause it is an acquired trait i.e. never passed on to their progeny.Because cutting the tails of mice do not change the genes . |
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| 67537. |
Difference between Dominant and receive trait |
| Answer» Dominant traits are shown in first generation whereas recessive traits are not shown but they are hidden and are shown in F2 generation. | |
| 67538. |
Define Heridity. |
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Answer» The continuity of features from one generation to another is known as heredity. It is also defined as the transmission of traits from parents to the offsprings. Transmission of characters (or traits) from the parents of their offspring. |
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| 67539. |
What is the significance of pollimation. |
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Answer» Pollination is the process of transfer of pollen grains from anther and their deposition on he stigma of the flower. Pollination can be self-pollination or cross pollination.*Self-pollination is the transfer of pollen grains from anther to the stigma of the same flower.*Cross pollination is the deposition of pollen grains from anther of one flower to stigma of another flower of another plant.Pollination is essential for the process of fertilisation. Fertilisation thereby results in the formation of fruits and seeds. Without pollination there wouldn\'t be any fruit and seed formation. When the flowers or fruits are transformed from one plant to another plant from anther to stigma is known as pollination |
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| 67540. |
Why is abscisic acid called as a stress hormone |
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Answer» Abscisic acid is known as the stress hormone because of the following reasons :1. It helps plant to cope with adverse environmental conditions or stresses.\xa02. It causes temporary closure of stomata due to which there is reduction in the rate of transpiration. Therefore, it acts as antitranspirant and reduces water loss.3. It acts as a general growth inhibtor and inhibitor of plant metabolism.4. It inhibits seed germination.5. It induces dormancy to escape the unfavourable conditions. because it is found to induce various types of responses in plants against stress conditions like the closure of the stomata during drought.............? |
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| 67541. |
Till how many we have to learn elements atomic number |
| Answer» You have to learn about at least 30 elements... | |
| 67542. |
Explain how the electrolytic refining of copper is done? |
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Answer» The apparatus consists of elecrtolytic tank containing acidified copper sulpahte solution as elecrolytes.A thick block of impure metal is made anode.A thin strip of pure copper metal made as cathodeOn passing electicity Impure copper from the anode dissolves and goes in cuso4 solution and pure copper from the copper sulphate solution deposits on the cathode.The pure copper metal is produced at cathode.The soluble impurities goes into the solution where as insoluble impurities settle down at anode as anode mud.Thanks. Current is passed through the acid 5 copper sulphate solution. A strip of pure metal is made by cathode while impure metal is made the anode as the current is passed , pure metal from the cathode dissolves in the electrolyte ,the same amount of pure metal goes to the cathode and the impurities settle below below the anode and are known as anode mud. |
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| 67543. |
Name two proteolytic enzymes. |
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Answer» BromelianPapain Poswal Didi Tera yu question mane google baba se poocha bada ajib answer aaya... Kuch paale hi na padha mere.... |
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| 67544. |
What is DNA COPPPING |
| Answer» State its importance. The process of production of a new DNA molecule from an already existing DNA molecule through chemical reactions is known as DNA copying. It is accompanied by the creation of new cellular apparatus so that the daughter DNA and parent DNA can be separated. | |
| 67545. |
Explain the extraction of metal from the ores |
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Answer» \tThe metals at the top of the activity series (K, Na, Ca, Mg and Al) are so reactive that they are never found in nature as free elements.\tThe metals in the middle of the activity series (Zn, Fe, Pb, etc.) are moderately reactive. They are found in the earth’s crust mainly as oxides, sulphides or carbonates.\tBelow copper lies gold and silver that are found in Free State. These metals have low reactivity.Ores that are mined out from the earth contains contaminants with large amounts of impurities including soil, sand, etc. These are known as gangue which must be removed from the ore before extraction of the metal. The processes involved in removing the gangue from the ore are based on the alterations between the physical or chemical properties of the gangue and the ore. There are three ore metal are high reactive. Medium reactive and low reactive |
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| 67546. |
Does the pattern of the magnetic field depend on the shape of the conductor?How? |
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Answer» Direction of current determines the pattern of magnetic field generated by a current through a conductor.Yes, the pattern depends on the shape of the conductor.For example- Circular Loop and Straight current-carrying conductor.\xa0 Yup.....bcoz different shapes of conductor have different magnetic type of magnetic strength..... |
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| 67547. |
What is the color of bleaching powder |
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Answer» Bleaching powder is also known as chloride of lime. It is a solid and yellowish white in colour. Bleaching powder can be easily identified by the strong smell of chlorine. White White I think |
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| 67548. |
why our bones produces pop sound by folding our fingers |
| Answer» because of the presence of a liquid in between the gap of our bones which produces bubbles of carbon dioxide when we fold our fingers the bubbles get produces pop sound | |
| 67549. |
Name the unit of inheritance?? |
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Answer» Gene is the unit of heredity. They play an important role. They are inherited by an organism to another generation. They also act in evolution and heredity. Gene |
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| 67550. |
Which sodium compound is used as on antacid in medicine? |
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Answer» NaHCO3, Sodium hydrogencarbonate is used as an antacid in the medicines. The sodium hydrogen carbonate have the ability to reduce the acid content present in the body and this is the reason why it is used as antacid. Sodium bicarbonate |
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