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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.
| 47951. |
A 457 mL volume of gas contracts when 773 torr of external pressure act on it. If 27.4 J of work are added to the gas, what is its final volume? |
| Answer» TION:xxxxxxxxxxxxxxxxxxxxxx | |
| 47952. |
Calculate the wavelength of a radiation having frequency 10 hz |
| Answer» ANSWER:vAnswer:vˉAnswer:vˉ = Answer:vˉ = λAnswer:vˉ = λ1Answer:vˉ = λ1 Answer:vˉ = λ1 Answer:vˉ = λ1 v=c Answer:vˉ = λ1 v=c vAnswer:vˉ = λ1 v=c vˉAnswer:vˉ = λ1 v=c vˉ = Answer:vˉ = λ1 v=c vˉ = λAnswer:vˉ = λ1 v=c vˉ = λcAnswer:vˉ = λ1 v=c vˉ = λc Answer:vˉ = λ1 v=c vˉ = λc =3×10 Answer:vˉ = λ1 v=c vˉ = λc =3×10 8ANSWER:vˉ = λ1 v=c vˉ = λc =3×10 8 ×10=3×10 Answer:vˉ = λ1 v=c vˉ = λc =3×10 8 ×10=3×10 9Answer:vˉ = λ1 v=c vˉ = λc =3×10 8 ×10=3×10 9 s Answer:vˉ = λ1 v=c vˉ = λc =3×10 8 ×10=3×10 9 s −1 . | |
| 47953. |
The number of d-electrons in Fe2+ (Z=26) is not equal to: (a) p-electrons in Ne (Z=10)(b) s-electrons in Mg (Z=12)(c) d-electrons in Fe atom(d) p-electrons in Cl ion (Z=17) |
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Answer» Solution : FE2+ has six d-electrons : CL has 12 p-electrons .EXPLANATION:This MAY help you ☺️Thank you ☺️ |
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| 47954. |
Silver nitrate+Hydrochloric acid=Silver Chloride+Nitric acid BALANCE THE EQUATION CHEMISTRY EXPERTS ANSWER PLS |
| Answer» AGNO3 (aq) + HCl (aq) → AGCL (s)(ppt.) + HNO3 (aq)Explanation:The reaction is already BALANCED! LOOK:Reactant side:No. of Ag atoms:1No. of N: 1No. of O: 3No. of H:1No. of Cl: 1On product side:No. of Ag: 1No. of N: 1No. of O: 3No. of H:1No. of Cl: 1Hope this helps!A. Rosea •~• | |
| 47955. |
O Which of the following is correct as per Aufbau Principle?(a) 3s < 3d< 4s < 4p(b) Is < 2p < 4s < 3d(c) 2s |
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| 47956. |
In Calculate boiling point of solutionprepared by adding15gm Nach to 250 gm ofwater [kk 0.512k kmmm of Nacl 58.44sol 1) |
| Answer» 100TH CELEBRATE the END of the most IMPORTANT THING | |
| 47957. |
A displacement reaction involving evolution of a neutral gas.please tell balanced reaction. |
| Answer» PLZ Mark me as BRAINLIEST plzExplanation:THANKS my ANS | |
| 47958. |
Considering the element B, AI, Mg, k the correct order of their metallic character is1 B > Al > Mg > K2.Mg > Al > K>B3Al > Mg > B>K4 K> Mg > Al > B |
| Answer» OPT AEXPLANATION:opt a and B RONG C rong | |
| 47959. |
Classify the following in to element compound and mixture sodium, solid, Air, water |
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Answer» Classify the following into elements, COMPOUNDS and mixtures. Elements: Sodium, Silver, Tin and SILICON. Compounds: Calcium CARBONATE, Methane and carbon dioxide. Mixtures: Soil, SUGAR, COAL, Air, Soap and BloodExplanation:follow me..,,, |
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| 47960. |
Ground state term for d5 confidlguration |
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Answer» o FRIENDS if you want to learn the all SUBJECTS go to PLAY store and download the the app called EXTRA marks Explanation:OK |
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| 47961. |
Help!!help!! me guys please |
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Answer» 5) SOLIDIFICATION 4) evaporation 2) vaporisation 1) melting 2 ) SUBLIMATION Explanation:PLZZZ plzzz mark as brainliest ANSWER dear plzzzz |
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| 47962. |
Read the given statements and choose the correct option given below i) anions are formed by losing electrons from the valence shell of an atom ii) cations are formed by losing electrons from the valence shell of an atom iii) sodium chloride compound is formed by transfer of an electron. Single choice. (1 Point)i) and ii)ii) and iii)i) and iii)i) ii) and iii) |
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Answer» iii) is the CORRECT option...Because, Cations are formed by losing electrons.Sodium CHLORIDE is formed by transfer of ONE electron.HOPE THIS DOESN'T HELP YOU |
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| 47963. |
1) why do alcohol have higher b.pt than halialkanes of similar molecular masses ? 2) why is the B.pt of either lower than isomeric alcohol ? |
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Answer» 1)answrsearchWhat would you like to ASK?CHEMISTRYWhy do ALCOHOLS have higher boiling points than HALOALKANES of the same molecular mass?ShareStudy laterANSWERAlcohols have higher boiling points than haloalkanes of same molecules mass because alcohols alcohol(−OH) have hydroxyl groups which INVOLVE in hydrogen bonding.As the intermolecular forces are high in hydrogen bonding,alcohols have higher boiling points than haloalkanes.2)eathera have much lower boiling pointas compared to isomeric alcohals. this is because alocohal molecules associated while hydrogen bond while eather molecules or notExplanation:PLEAS mark me as a brainlist |
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| 47964. |
Resorcinol on distillation with ZN dust givesOm-XyleneOBenzeneCyclohexaneToluene |
| Answer» C is correctExplanation:PLEASE FOLLOW me and MARK me brainlist please please please please please please please | |
| 47965. |
What is this symbol called? And what is this symbol used for? and what is it's name? no spam |
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Answer» is not shown but I'm PRETTY sure u meant pls MARK as brainliest andfolow methat would be greathope u have a GREAT day and STAY BLESSED |
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| 47966. |
Silver nitrate +hydrochloric acid=silver chloride+nitric acid balance it |
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Answer» Explanation:→Silver nitrate+Hydrochloric acid=Siver chloride + Nitric acid. →AgNO3+HCL=AgCl+HNO3→1AgNO3+1HCL=1AgCL+1HNO3→AGNO3+HCL=AgCL+HNO3.☞The above REACTION is a type of Double Displacement reaction in which complete exchange of ions or MOLECULES takes place.Displacement reaction(AB+C=CB+A).Combination reaction(A+B=AB)Decomposition reaction(AB=A+B)HOPE IT HELPS. |
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| 47967. |
with which of the following substances will aqueous be used in a chemical equation to maintain it's physical state a) Hydrogen b) gold c) carbon monoxide d) hydrochloric acid solution |
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Answer» PLEASE FOLLOW ME PLEASE PLEASE PLEASE OTHERWISE MARK AS BRAINLIST TO ME IN MY PROFILEWRITTEN THAT MARK AS BRAINLIST SO GIVE ME NOT TO OTHERS OK PLEASE LIKE ME PLEASE PLEASE PLEASE PLEASE PLEASE Explanation:Sulfuric acid is a colorless oily liquid. It is soluble in water with release of heat. It is corrosive to metals and tissue. It will char wood and most other organic matter on contact, but is unlikely to cause a fire. Density 15 lb / gal. Long term exposure to low concentrations or short term exposure to high concentrations can result in adverse health effects from inhalation. It is used to make fertilizers and other chemicals, in petroleum refining, in iron and steel PRODUCTION, and for many other USES. RATE of onset: Immediate Persistence: Hours, days Odor threshold: Source/use/other hazard: Battery/dyes/paper/glue/metals industries; volcanic gas; toxic fumes when heated.CAMEO ChemicalsSulfuric acid is a sulfur oxoacid that consists of two oxo and two hydroxy groups joined covalently to a central sulfur atom. It has a role as a CATALYST. It is a conjugate acid of a hydrogensulfate.ChEBISulfuric acid, spent appears as a black oily liquid. Corrosive to metals and tissue. Density 15 lb /gal. |
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| 47968. |
A. i. Molecular solids arecrystalline solidsb. amorphous solidsc. ionic solidsd. metallid solids |
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Answer» what is QUESTION EXPLANATION:FIRST TELL question |
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| 47969. |
Assertion : Chronic diseases affect our health.Reason : Chronic diseases last for long time. 1 point(a) Both Assertion and Reason are correct and Reason is the correct explanation of Assertion(b) Both Assertion and Reason are correct but Reason is not correct explanation of Assertion(c) Assertion is correct but Reason is false(d) Assertion is false but Reason is correct. |
| Answer» ANS A is rightExplanation:as ASSERTION is CORRECT and REASON is correct EXPLANATION for A | |
| 47970. |
Calculate the number of moles in 11.2 litre of chlorine |
| Answer» 1 mole occupies 22.4 litre at stpthus 11.2 litres contains =11.2/22.4 = 0.5 MOLES1 mole contains 6.023 * 10^23 moleculesthus 0.5 mole contains= 0.5 *6.023*10^23=3.0115*10^23 molecules1 MOLECULE contains 2 atoms3.0115*10^23 MOLECULES contain=2*3.0115*10^23=6.023 * 10^23 atoms! | |
| 47971. |
Explain Variation of volume with temperature at constant pressure using Charle’s law |
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Answer» Explanation:The VOLUME of a given gas sample is directly proportional to its absolute temperature at constant PRESSURE (CHARLES's law). The volume of a given amount of gas is inversely proportional to its pressure when temperature is held constant (BOYLE's law). |
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| 47972. |
What is the type of hybridization of carbon atoms marked with star |
| Answer» K C represent it has COMPLETED its valency. THEREFORE carbon has SP hybridization in this case.Hope it helps you PLZ mark me brainliest | |
| 47974. |
How many molecules are present in the two moles of ch3oh |
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| 47975. |
A compound XH is formed by the combination of element X with hydrogen . find the valency of an elements .write the formula of the compounds formed the combination of X with oxygen ( valency of oxygen = 2 |
| Answer» BRAINLIEST for the answer...The valency of element x is 1 when x combine with O then the FORMULA is MARK as brainliest and FOLLOW | |
| 47976. |
Calculate the number of atoms of hydrogen present in 5.6 g of urea,(NH),CO. Also calculate the numberof atoms of N, C and O.(Ans. : No. of atoms of H = 2.24 x 1023.N=1.124 x 1023 and C = 0.562 x 1023, 0= 0.562 x 1023) |
| Answer» HIIII FRND........!!!!!! | |
| 47977. |
Which of the following salt will not show salt hydrolysis?NaciNH4Cl(NH4)2CO3NaHCO3 |
| Answer» O3 will not show salt hydrolysis.Hope it HELPS you PLEASE MARK me brainliest... | |
| 47978. |
Converting silver biromid into silver and bromine is a |
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Answer» if you WANT ANSWER first follow me on facebookExplanation:facebook ID- ujjwal arya |
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| 47979. |
Which of the following pairs represent isoelectronic? i) F-, Mg, Al^3+ ii) Mg^2+, Na+, Ne iii) Na, Mg^2+, F iv) Al, Ne, O^2- |
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| 47980. |
Explain why Benzoic acid is aromatic in nature |
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| 47981. |
Calculate the enthalpy of formation of acetic acid (CH3COOH) if its enthalpy of combustion is 78.6KJ/mol. Enthalpy of formation for water and carbon dioxide is -286.9 and -393.5 KJ/mol. |
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Answer» SolvedThe SOLVED chemistry tasks are executed in .DOC format. The solution is executed according to the actions and contains an EXPLANATION. You will be able to UNDERSTAND the way of solving the problem and easily protect your decision before the teacher. If among our tasks you have found a similar problem with other digital values, you can easily solve your problem by setting your values in a condition. |
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| 47982. |
For an atom to be stable an element arrange themselves into how many orbits |
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| 47983. |
Сн - си - сн сн, 31CH/CH2.си3\CH2.с- сн델3Сн3 |
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Answer» Suffix: -eneMany of the same rules for alkanes apply to alkenes1. Name the parent hydrocarbon by locating the longest carbon chain that contains thedouble bond and name it ACCORDING to the number of carbons with the suffix -ene.H3C CH2 CH2C CH2CH2 H3CH3C CH2 CH2C CH2H3C CH2Parent = pentene not hexene (does not contain double bond)2. a. Number the carbons of the parent chain so the double bond carbons have thelowest possible numbers.H3C CH2 CH2 CH CH CH36 5 4 3 2 12-hexeneb. If the double bond is equidistant from each end, number so the first substituenthas the lowest number.H3C CH CH CH CH2 CH31 2 3 4 5 62-methyl-3-hexeneCH33. Write out the full name, numbering the substituents according to their POSITION in thechain and list them in alphabetical order.4. Indicate the double bond by the number of the first alkene carbon.H3C CH2 CH2 CH CH CH36 5 4 3 2 12-hexene5. If more than ONE double bond is present, indicate their position by using the numberof the first carbon of each double bond and use the suffix -DIENE (for 2 doublebonds), -triene (for 3 double bonds), -tetraene (for 4 double bonds), etc.H2C CH CH2 CH CH21 2 3 4 51,4-pentadieneH2C CH CH CH CH31 2 3 4 51,3-pentadiene |
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| 47984. |
9,53. The ejection ofthe photoelectron from the silver metal in the photoelectric effect experimentcan be stopped by applying the voltage of 0.35 Vwhen the radiation 256.7 nm is used. Calculatethe work function for silver metal. |
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Answer» tion:the EJECTION of the photo electron from the silver metal in the photo electric effect experiment can be stopped by applying the VOLTAGE of 0.35V when the radiation 256.7 nm is used.this is answer make it like BRAIN LIST answer please |
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| 47985. |
If gibbs free energy G is zero for a reaction,then |
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Answer» The CHANGE in free energy (ΔG) is the difference between the heat released during a PROCESS and the heat released for the same process occurring in a REVERSIBLE manner. If a system is at equilibrium, ΔG = 0. ... If the process is not spontaneous as written but is spontaneous in the reverse direction, ΔG > 0.Explanation:Hope it helps u |
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| 47986. |
Mention the part of cell responsible for the following-Formation of glucose in plant cells. |
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Answer» Hiiii FRND..... How are you....!!!!EXPLANATION:I WISH that all being good in ur LIFE......!!! |
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| 47987. |
Explain the concept of free fall |
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Answer» DescriptionIn Newtonian physics, free fall is any MOTION of a body where GRAVITY is the only force ACTING upon it. In the context of general relativity, where gravitation is REDUCED to a space-time curvature, a body in free fall has no force acting on it.Explanation:pleaseeee MARK me as brainlest |
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| 47988. |
What do you mean by carrosion explain ? |
| Answer» CORROSION is when a refined METAL is naturally converted to a more stable form such as its oxide, hydroxide or sulphide STATE this leads to deterioration of the material. | |
| 47989. |
Succinid acid formula |
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Answer» d ACID is a CHEMICAL of dicarboxylic acid with the FORMULA (CH2)2(CO2H)2.Please mark me brainliest this is CORRECT answer |
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| 47990. |
CИ, С – ең,CH₂ - CH₂ - CHOCH₃ |
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Answer» lgpsudfsafdhkflthedjrijdkfkfytorkdj |
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| 47991. |
What is the position of the element sodium in the periodic table? |
| Answer» SODIUM is a chemical element with the symbol Na (from Latin "NATRIUM") and atomic NUMBER 11. It is a soft, silvery-white, HIGHLY reactive metal. Sodium is an alkali metal, being in group 1 of the periodic table.May it helps youPlease mark me as Brainliest | |
| 47992. |
Ipoint 16) Moment of inertia (1) androtational constant (B) of amolecule, related to each otherbyOequal to each otherdirectly proportionalinversely proportionalno relation with each other |
| Answer» EQUAL to each other It HELPS to you , PLEASE FOLLOW and give thanks to me. | |
| 47993. |
Calculate number of moles of hydrogen in 0.550 litres of hydrogen gas at STP |
| Answer» 1 mole of hydrogen gas at STP occupies 22.4 litres. No. of litres of moles of hydrogen in 0.448 litre of hydrogen gas at STP =>0.448/22.4 => 0.02 . Hope it helps you.Explanation:Use the molecular formula to find the molar MASS; to obtain the number of moles, divide the mass of compound by the molar mass of the compound expressed in grams. 9. Formic acid. Its formula has TWICE as many oxygen atoms as the other two compounds (ONE each). | |
| 47994. |
1). Calculate the pH of a mixture of 150 mil of 0 126M NAOH and 21 Oml of 0.051M 1,504. (Assume that volume of the mature is simply the sum of the volumes mixed). |
| Answer» SWER:If uduid CBI 8 idchus8d ndhbssndis odbes | |
| 47996. |
Is solution is prepared by adding sugar in a given amount of water at a given temperature .we can"t dissolve more than 25 gram of sugar in water at this temperature? write its type and justify your answer. |
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Answer» tion:A saturated solution is one in which any additional solute added to the solution is no longer dissolved. THEREFORE, it is not POSSIBLE to dissolve some more grams of sugar for a saturated solution at a given TEMPERATURE. If we INCREASE the temperature of the solution we can dissolve more sugar. |
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| 47997. |
The chemical that do not participate in the reaction but alter the rate of reaction |
| Answer» TS are the chemicals which do not take PART in the REACTION But alter the RATE of the reaction. | |
| 47998. |
The chemical used in manufacturing ơf dynamite is??? |
| Answer» TION:Dynamite is an explosive MADE of nitroglycerin, sorbents (such as powdered shells or clay) and STABILIZERS. It was invented by the Swedish chemist and engineer Alfred Nobel in Geesthacht, NORTHERN Germany and patented in 1867. It rapidly gained wide-scale use as a more powerful alternative to black powder. | |
| 47999. |
(i) Benzene diazonium chloride (ii)Cumene (iii) Chlorobenzene (Dow's process). |
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Answer» hshsgegehevdvdxhhdhdgdhrirkkdjcifugikforkj7 |
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| 48000. |
Which metal is responsible for spontaneous combustion SodiumCalciumIronMagnesium |
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Answer» Magnesium EXPLANATION: |
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