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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.
| 1451. |
What happens when iron fillings are added to dilute hydrochloric acid?? |
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Answer» Oo what will do with number?? Give your number Hii shreyanshi When dilute Hydrochloric acid is added to iron filings, iron chloride & hydrogen gas is produced. The iron displaces hydrogen from hydrochloric acid to form iron (II) chloride & hydrogen gas. |
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| 1452. |
How will concentration of H3O ione change on dilution? |
| Answer» The concentration of hydronium ions decreases when an acid is diluted because on adding water the H+ ions of the acid and hydroxyl ions of water react to form water molecules and the concentration of hydronium ions decreases | |
| 1453. |
Which type of lense are used for presbyopia? |
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Answer» bifocal lens Convex lens |
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| 1454. |
Koy online hai kaya |
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Answer» Yes Hii, i am neha and u Hiii Please chat with me |
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| 1455. |
Define linear magnification?does it have any unit |
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Answer» Thanks Linear magnification is the ratio of the distance between the image and the pole(v) and the object and the pole (u). ... Thus its a ratio in which both the numerator and denominator have same units. Thus linear magnification is unitless. |
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| 1456. |
Type of respiration |
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Answer» 3 Respiration Three types of respiration include internal, external, and cellular respiration. External respiration is the breathing process. It involves inhalation and exhalation of gases. Internal respiration involves gas exchange between the blood and body cells. |
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| 1457. |
why copper vessels are cleaned with lemon |
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Answer» It\'s my pleasure ? ok thanks The citric acid present in the lemon or tamarind neutralises the basis copper carbonate and dissolves the layer. That is why, tarnished copper vessels are cleaned with lemon or tamarind juice to give the surface of the copper vessel its characteristic lustre. |
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| 1458. |
What do you mean by second\'s pendulum? |
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Answer» Kuch nhi Kya hua , It\'s my pleasure ? Thnx A seconds pendulum is a pendulum whose period is precisely two seconds; one second for a swing in one direction and one second for the return swing, a frequency of 12 Hz. A pendulum is a weight suspended from a pivot so that it can swing freely. |
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| 1459. |
Is mind and brain and soul are interconnected |
| Answer» Don\'t know | |
| 1460. |
HAVE_____A_____NYC_____DAY. |
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Answer» Same to u☺️☺️ G m |
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| 1461. |
Why we feel tired after doing lots of work |
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Answer» We feel tired after doing lots of work because our energy is consumed and we don\'t have much energy to do anything.... Because our energy in consumed and of lack of energy in body Ye to sab hote hai ?? |
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| 1462. |
In small child small intestine remain same or change whe child become young man |
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Answer» It becomes more complex when he becomes young man It remains the same but the difference is that it just grows in size |
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| 1463. |
Why do we slip in a rainy season? |
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Answer» Because when when rain falls water creates a layer of water where friction is very low. It is usually seen that during rainy days we tend to slip because rainwater acts as a lubricant between our feet and ground. This lubrication (rainwater) converts the dry friction into fluid friction. That is the friction between feet and ground reduces making us slip. |
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| 1464. |
Hiii namita where are u |
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Answer» Hello , good morning Hiii neha ......yuppp i am here....... What ? i am adk ninte veetil |
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| 1465. |
Define parallel combination of rasistor and is identity? |
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Answer» The reciprocal of the equivalent of a group of the resistance is equal to sum of the individual recistence Parallel combination is a combination where two or more than two resistors are connected in parallel. So we can define a parallel resistive circuit as one where the resistors are connected to the same two points (or nodes) and is identified by the fact that it has more than one current path connected to a common voltage source. |
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| 1466. |
Khushi tumne sari post delete kyu ki |
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Answer» Nahi Aapka wo he naam h kya Mujhe kisi n nhi bola.. Ok wait |
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| 1467. |
Koy online hai |
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Answer» I am also here Hum bhi hai aur sana wo naam tumhe kisne bola ki mera naam hai Hii kya kar rahaho Haanji.. |
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| 1468. |
How are you ??? |
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Answer» I am also fine Khushi ji hu v mast hai More comfortable than you I am fine,☺️and what about u |
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| 1469. |
What is liquid at room temperature |
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Answer» water Liquids around room temperature. The only liquid elements at standard temperature and pressure are bromine (Br) and mercury (Hg). Although, elements caesium (Cs), rubidium (Rb), Francium (Fr) and Gallium (Ga) become liquid at or just above room temperature. |
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| 1470. |
Hiii how are you kisi ko pta ha kya ki mere pagal sister kha ha ????????????????????????? |
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Answer» Ooooo To kkrho Accha Haa doutnut pe |
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| 1471. |
World dengerous lake ? Name plz? |
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Answer» Kivu lake is the most Dangerous lake in the world ....? Is my answer correct or not ??? Lake natron hii to both Sayad, kya muje vi pata nahi? Kivu lake may be ??? |
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| 1472. |
Light reflection am |
| Answer» Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated. Common examples include the reflection of light, sound and water waves. | |
| 1473. |
What will be the nature of acid if acid is diluted with water ? |
| Answer» When an acidic solution is diluted with water the concentration of H + ions decreases and the pH of the solution increases towards 7. To make the pH change by 1, a tenfold dilution is required (eg adding 9 cm 3 of water to 1 cm 3 acid). The acid is becoming less acidic. | |
| 1474. |
Name the law that create a necessity for balancing of a chemical equation |
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Answer» law of conservation of mass Iaw of conservation of mass law of conservation of mass.. Every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed |
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| 1475. |
Dry hydrogen gas does not change the colour of dry litmus paper. Why ? |
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Answer» Hiii , what\'s your name Hello pranali Hello Hi Dry HCL it does not dissociate to give H+ ions. Acids dissociate to give ions only in the aqueous solution. In this, HCL is not in the aqueous form nor the litmus paper is wet, so the colour of the litmus paper does not change. |
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| 1476. |
What is the relation between Direction and Electric current.????? |
| Answer» The\xa0direction of\xa0an\xa0electric current\xa0is by convention the\xa0direction\xa0in which a positive\xa0charge\xa0would move. Thus, the\xa0current\xa0in the external\xa0circuit\xa0is directed away from the positive terminal and toward the negative terminal\xa0of\xa0the battery. Electrons would actually move through the wires in the opposite\xa0direction.\xa0By convention,\xa0current\xa0is assumed to travel from positive to negative\xa0direction. The electrons travel from negative to positive. The\xa0direction\xa0of\xa0current\xa0is not the same as\xa0direction\xa0of\xa0flow\xa0of electrons; they are opposite. | |
| 1477. |
We know that feso4 -fe2o3+so2+so3 how we know that this reaction gives that fe2o3+so2+so3 |
| Answer» | |
| 1478. |
A very small difference between the camera and human eye.??? |
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Answer» Mene gm ka message de diya hai id palak ke naam se hai okk dekh liya ho to thanks par click kar dena ? Thanks khushi ( mene hii bola tha doubtnut par tumhe kal raat ko check kar lena okk) |
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| 1479. |
How Co2 turn lime water milky ? Which process involved in this reaction. |
| Answer» When we add Co2 in limewater(Ca(OH)2) then it gives water and calcium carbonate. Calcium carbonate is a white precipitate, so it turns white | |
| 1480. |
Write some difference between ac and dc current |
| Answer» Direct Current:1) It is derived from a cell or a battery and is uni-directional.2) The positive and negative terminals are fixed.3) The voltage v/s time graph is represented by a stariaght line parallel to time axis. Thus the value of voltage or current remains constant with timeAlternating Current:1) The current changes its direction after equal intervals of time.2) It has no fixed terminals as the current reverses its direction after every half cycle.3) The voltage Vs time graph is generally represented by a sinusoidal curve. | |
| 1481. |
What are the functions of Trypsin....❓❓? |
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Answer» Good morning Good morning ??Radhe Krishna Thank you...☺️ Protein Digestion.It also activates other trypsinogen molecules, as well as other protein-digesting enzymes secreted as proenzymes with pancreatic juice. Therefore,\xa0trypsin\xa0is essential for normal\xa0function\xa0of digestive processes that convert food proteins into amino acids for absorption. |
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| 1482. |
How is baking soda obtain from salt as 1.as medicine 2.in food and drinks 3.fire extinguisher |
| Answer» \xa0Baking soda is a chemical compound which is also called as -\xa0Sodium bicarbonate (NaHCO₃).1. Antacid / medicine -\xa0NaHCO₃ acts like an\xa0absorbable\xa0antacid. Baking soda imitates the action of natural sodium bicarbonate in the body and neutralizes the stomach acid relieving acid reflux.2. Food/ Baking - When baking soda is mixed with moisture and with an acidic substance like yogurt, buttermilk etc, a chemical reaction occurs which produces carbon dioxide gas as bubbles. These bubbles expand under hot temperatures like in the oven while it is baking. This causes the baked bread or cake to become soft and spongy.3. Soda-acid fire extinguisher - A\xa0soda-acid fire extinguisher is usually a mixture of baking soda and an acid which is commonly sulfuric acid. It is used as a pressurized expeller to put off the fire. When it is expelled, a reaction in between the contents of the soda-acid occurs which releases carbon dioxide that extinguishes the fire. | |
| 1483. |
Write two difference between organic acid and mineral acids ,give one example of each one. |
| Answer» The main\xa0difference between mineral acid\xa0and\xa0organic acid is\xa0that\xa0mineral acids\xa0are\xa0inorganic\xa0compounds composed\xa0of different\xa0chemical element combinations whereas\xa0organic acids\xa0are\xa0organic\xa0compounds essentially composed\xa0of\xa0carbon and hydrogen atoms. For\xa0example, HCN has a carbon atom although it\xa0is\xa0an\xa0inorganic acid.\xa0Organic acids\xa0have carbon and hydrogen as constituents.\xa0Inorganic acids\xa0or\xa0mineral acids\xa0need not have carbon and hydrogen.\xa0example\xa0of\xa0organic acid- the sulfonic\xa0acids, of formula R-SO3H. | |
| 1484. |
How does face mask help in limiting the spread of Covid-19 |
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Answer» Wearing a face mask or other covering over the mouth and nose reduces the forward distance traveled by an exhaled breath by more than 90 percent.\xa0face masks combined with other preventive measures, such as frequent hand-washing and social distancing, help slow the spread of the disease. Face mask make a layer around the face. So face dont have direct contact with other person |
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| 1485. |
How do metal carbonates and metal hydrogencarbonate react with acids |
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Answer» Metal carbonates and Metal Hydrogencarbonates reacts with acids and produces corresponding metal salt, carbon dioxide and water.Let us consider the reaction of sodium carbonate with dilute HCl. The reaction proceeds in the following manner.Na2CO3 + 2HCl\xa0→ 2NaCl + H2O + CO2 They producce CO2 + H20 |
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| 1486. |
Hey where are you all |
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Answer» Maine ti aise he pooch liya tha ki aapka name rukhsar h ya nhi Hlo..yhi pr h |
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| 1487. |
What is sabaceous gland |
| Answer» a small gland in the skin which secretes a lubricating oily matter (sebum) into the hair follicles to lubricate the skin and hair. | |
| 1488. |
Show the formation of MgCl2, Na2O and MgO by the transfer of electrons. |
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Answer» Mam how we full the block of these element Atomic number of Sodium (Na) – 11Electronic configuration of Sodium – 1s2\xa02s2\xa02p6\xa03s1It has one valence electron, it will lose one electron to get octet configurationAtomic number of Oxygen (O) – 8Electronic configuration of Oxygen – 1s2\xa02s2\xa02p4It is two electrons short of octet configuration, thus it will gain two electrons.During the bond formation between Sodium and Oxygen, two Sodium atoms loses one electron each to Oxygen atom.2 Na -2e- → 2Na+O + 2e- → O-2\xa02Na+\xa0+ O-2\xa0→ Na2O\xa0Atomic number of Magnesium (Mg) – 12Electronic configuration of Magnesium – 1s2\xa02s2\xa02p6\xa03s2It has two valence electrons, it will lose two electrons to get octet configurationAtomic number of Oxygen (O) – 8Electronic configuration of Oxygen – 1s2\xa02s2\xa02p4It is two electrons short of octet configuration, thus it will gain two electrons.During the bond formation between Magnesium and Oxygen, one Magnesium atom loses two electrons to Oxygen atom.Mg -1e- → Mg2+O + 2e- → O-2\xa0Mg+2\xa0+ O-2\xa0→ MgO |
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| 1489. |
Is the eyes of Planaria and Human are Homologous organs? |
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Answer» They are analogus because they have different structure i.e. humans have complete eye but planaria only have light detcting\xa0spots but they perform the same function of seeing Yes |
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| 1490. |
Sir ..What is concave mirrors |
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Answer» Hi shristi A spherical mirror is a part of a hollow sphere whose reflecting surface can be made curvee inward or outward by silvering it from the opposite side If you silvered the inward side then the mirror you obtain will be convex whose reflecting surface is facing opposite to the centre of curvature If you silvered the outward side then you will obtain a concave mirror \tA spherical mirror, whose reflecting surface is curved inwards, i.e. faces towards the centre of the sphere, is called a concave mirror.\t There is no sir in this app .Other students answer ur questions |
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| 1491. |
Concave mirror propart |
| Answer» CONCAVE MIRRORS;1. They always produce real and inverted images except when an object is placed between the mirror pole and the focus which gives erect virtual images. (for real objects)2. They produce magnified, diminished and same size images.3.A parallel beam of incident light is concentrated on its focus and thus such a mirror is called a convergent mirror. Also a light source placed at the focus produces a parallel light beam.4.Sign convention: The focal length and radius of curvature are taken as negative. | |
| 1492. |
Who are u attitude girl |
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Answer» Mind your own buisness Bitch hota hai bhai . Bich |
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| 1493. |
What is iflorence |
| Answer» The\xa0inflorescenceA flower is a modified shoot wherein the shoot apical meristem changes to floral meristem. The arrangement of flowers on thefloral axis is termed as\xa0inflorescence. ... In cymose type of\xa0inflorescence, the main axis terminates in a flower; the flowers are borne in a basipetal order.\xa0Inflorescences\xa0are complex structures with many functions. At anthesis they present the flowers in ways that allow for the transfer of pollen and optimization of the plant\'s reproductive success. During flower and fruit development they provide nutrients to the developing flowers and fruits. | |
| 1494. |
Define linear magnification? Does it have any unit. |
| Answer» Thanks dekh li post mene | |
| 1495. |
What is the cause of the refraction of light?????? |
| Answer» Change of speed cause change of directionLight refracts whether it travels at an angle into a different refractive index(optical density). This change of direction is caused by a change in speed. ....When light travels from air into water, it slow down , causing it to change direction slightly. | |
| 1496. |
Plaster of Paris should be stored in a moisture - proof container. Explain why? |
| Answer» Plaster of Paris should be stored in a moisture-proof container because when plaster of Paris come in the presence of water it forms gypsum giving a hard solid mass which is ultimately useless after some time. Plaster of Paris in contact with moisture (water) changes to solid hard mass, gypsum.\xa0Therefore, it gets wasted. Hence it should be stored in moisture proof containers.\xa0\xa0 | |
| 1497. |
Mahi come fast |
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Answer» Nahi kon bola Pls btao..?? Hey aapka real name rukhsaar h kya.. |
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| 1498. |
In Which System Woman Reproduction |
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Answer» Xxx Bhai tu khud samjh raha hai kya |
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| 1499. |
How do villi increase surface area????? ?? |
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Answer» Sanket tu pitega mere se Ayush h inka name Guess first letter is A Thank. By the way what is your name When they wanted to absorbe more nutrition |
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| 1500. |
The process of obtaining food by amoeba is called __________? |
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Answer» Thank both of you ???☺ Phagocytosis Phygocytosis |
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