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.
| 52351. |
Two photons X and Y have the wave lengths of 1nm and 1A . The ratio of the energies of X and Y is OPTION A - 10:1 OPTION B - 1:1 OPTION C - 100:1 OPTION D - 1:10 Need with explanation Please answer fast |
| Answer» OPTION B - 1:1 is a CORRECT ANSWER | |
| 52352. |
Calculate the volume occupied by 1.5057*10²³ molecules of methane |
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Answer» vhkjppbvccdre689Explanation:vhiuuii000nvvjppppp |
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| 52353. |
Metal rect with acids to produce_and gas . fill in the blanks. Jo Right answer Deya usko follow krnuga or 100 points |
| Answer» TION:METAL SALT istherightanswer@Kashyapraj2020 | |
| 52354. |
The decreasing order of bond angles in BF3, NH3, PF3, I3 - |
| Answer» I3- >BF3 >NH3 >PF3Explanation:HTH!¡! :) | |
| 52355. |
Why is graphite a good conduct oxide of carbon |
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Answer» Explanation:In graphite each carbon is bonded to three other carbon atoms HENCE leaving behind a free electron. Due to the PRESENCE of this one delocalised electron, graphite is a GOOD CONDUCTOR of electricity. |
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| 52356. |
When chlorine is passed through hot concentrated sodium hydroxide solution, it forms sodium chlorate, sodium chloride and water, while hot concentrated calcium hydroxide does not. Why? |
| Answer» 1 KG = 9.8 NewtonExplanation:UNDERSTAND | |
| 52357. |
Name a process for converting mercuric oxide to the liquid metal |
| Answer» ROASTING is the PROCESS to CONVERT MERCURIC oxide into liquid metal . | |
| 52358. |
Why is ice at 273 k more effective in cooling than water at the same temperature?answer briefly |
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Answer» To ACHIEVE the room temperature, the ice at 273 K will absorb latent HEAT as well as THERMAL energy. Water at a temperature of 273 K would just absorb heat energy to achieve room temperature. Thus, water at 273 K will absorb less ENVIRONMENTAL heat energy than ice at 273 K. Therefore ice at 273 K more effective in cooling than water at the same temperature.Explanation:I hop it will help you!!"-" |
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| 52359. |
Important first row transition element |
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Answer» First-Row Transition METAL Elements - Scandium to ManganeseGroup 3 (Sc, Y, La, and Ac)Group 4 (Ti, Zr, and Hf)Group 5 (V, Nb, and Ta)Group 6 (Cr, Mo, and W)Group 7 (Mn, Tc, and Re)Groups 8, 9, and 10. Group 8 (Fe, Ru, and OS) Group 9 (Co, Rh, and Ir) ...Group 11 (Cu, Ag, and Au)Group 12 (Zn, Cd, and Hg)is this correct |
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| 52360. |
Realice la diferencia de electronegatividad entre los átomos de la molécula y determine el tipo de polaridad en el enlace de cada uno de los compuestos : a. NaCl b. SO c. O2 d. FeO e. H2O f. N2 g. Ácido carbónico H2CO h. Hidróxido de calcio NaOH i. Cianuro de potasio (veneno) KCN |
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| 52361. |
What is the difference between covalent and molecular compound or are they the same thing? |
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Answer» In MOLECULAR compounds, the attraction of atoms is called a covalent bond. Molecular compounds are ACTUALLY the same with covalent compounds '“ same THINGS with a different name. Molecular compounds typically have little or no ELECTRICAL conductivity properties. |
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| 52362. |
RMM DEFINITION (RELATIVE MOLECULAR MASS) TAKE YOUR TIME TO ANSWER :) |
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Answer» The MOLECULAR mass is the mass of a GIVEN molecule: it is measured in daltons. DIFFERENT MOLECULES of the same compound may have different molecular masses because they CONTAIN different isotopes of an element. |
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| 52364. |
Is a shorthand notation of an element or a compound |
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Answer» tion:SHORTHAND REPRESENTS substances USING a symbol for an element.may it HELPS you. |
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| 52365. |
Why is ice at 273 k more effective in cooling than water at the same temperature? it is an urgent |
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Answer» At 273 K, ice absorbs more heat than water from the SUBSTANCE to overcome the latent heat of fusion and thus providing a more effective cooling effect. Water however does not ABSORB any extra heat from the substance. Thus, ice is more effective in cooling than water at 273 KelvinExplanation:cant UNDERSTAND why explanation is NEEDED |
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| 52366. |
Mno2 + c2o4²‐ give rise to mn²+ + co2 balance redox reaction in acidic medium |
| Answer» UB uhbuhbijnnijinrfijndxijnxedijnefxnExplanation:fxekdnx in exdinnfexijneifjxnijnefx | |
| 52367. |
কার্বন ৪ যোজ্যতা দেখায় কেন? |
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Answer» G.S= GROUND STATEE.S= EXCITED STATEExplanation:hope this HELPS you PLS mark as brainlist |
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| 52368. |
Which one has more atoms: 10grams of Al or 10g of Fe |
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Answer» ghjxmxnsbsfssvbsnskskhsbsvdydudn so if you have to be GOOD to hear from you SOON SEND me the u of m did not talk to you and your FAMILY and friendsExplanation:bbkkkkjh |
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| 52369. |
Define term stiochiometry with its aplication |
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Answer» a branch of chemistry that deals with the application of the LAWS of definite proportions and of the conservation of mass and ENERGY to chemical activity. 2A : the quantitative relationship between CONSTITUENTS in a chemical substanceExplanation: |
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| 52371. |
What is combustion need ex |
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Answer» ction of substance with oxygen in which HEAT is evolved CALLED as combustion. for ex-The BLUE region of candle,BURNING of petrol |
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| 52372. |
_and _ Cannot be drawn into wires. fill in blanks. |
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Answer» DuctilityHope this HELPS YOUMARK me as BRAINLIEST |
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| 52373. |
The electronic configuration of an element X is 2,8,1 2 a. 1. Find the atomic number of X i. What is the valency of X |
| Answer» ATOMIC NUMBER is 22element is titaniumvalancy is 4 | |
| 52374. |
What happens to the following substance in the given conditions raw egg which is broken and wipe the result will be |
| Answer» TION:When the egg gets heated up, these liquids undergo a CHEMICAL change. The proteins UNRAVEL and BIND to ONE another, which results in a network ... | |
| 52375. |
Is fire extinguisher is combustion true or false |
| Answer» FALSE its not TRUE FIRE EXTINGUISHER is not COMBUSTIBLE | |
| 52376. |
_ and _ metal are liquid at room temperature. fill in blanks. |
| Answer» SODIUM and potassiumExplanation:sodium and POTASSIUM | |
| 52378. |
A piece of paper is crumbled up it is a chemical or physical change |
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Answer» it will be a PHYSICAL changeExplanation:the paper can be brought BACK to its ORIGINAL STATE |
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| 52379. |
Write the order of number of atoms 36g h2o,28g co2,46g ch3oh,54g n2o5 is |
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| 52382. |
Assertion(A): Hydroflouric acid has low boiling point than water through hydrogen bond in hydroflouric acid is stronger than in water. Reason(R) : Hydrofluoric acid exists as (HF), molecules even in vapour state, where as water exists a (H2O), molecules in vapour state. |
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Answer» The last soldier to leave Afghanistan on the day the U.S. CONCLUDED its 20-year war has been identified as Major General Chris Donahue, COMMANDER of the U.S. Army 82nd Airborne Division, XVIII Airborne Corps. Donahue was one of the commanders on the GROUND leading the evacuation mission.General KENNETH F. McKenzie, the commander of the U.S. Central Command, said Monday that the last U.S. aircraft LEFT Afghanistan on August 30 at 3:29 p.m. ET, or 11:59 p.m. in Kabul. |
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| 52383. |
Solubility product of BaCO3 is 2.6×10–⁹ estimate it's solubility? |
| Answer» TION:[CO32-] = 0.60 MAT equilibrium:BaCO3 <----> Ba2+ + CO32- s 0.6 + sKsp = [Ba2+][CO32-]2.6*10^-9=(s)*(0.6+ s)Since Ksp is small, s can be ignored as compared to 0.6Above EXPRESSION thus becomes:2.6*10^-9=(s)*(0.6)2.6*10^-9= (s) * 0.6s = 4.333*10^-9 MAnswer: 4.3*10^-9 Mplease MARK me as a brain list | |
| 52384. |
Oxide of iron :_________::oxide of magnesium :__________MgO Saline water : salt water::soda water :______ |
| Answer» IRON Oxide(FERRIC OXIDE)( I II III) MAGNESIUM oxide (MGO).Explanation: Carbonated WATER. They Have CARBON Dioxide in them | |
| 52385. |
Give true and false Copper is more attractive than iron |
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Answer» No, copper is not more REACTIVE than iron. its answer is falseExplanation:As you can SEE ,copper does not DISPLACE iron from its solution since it is less reactive than iron. A more reactive METAL DISPLACES a less reactive metal from its solution. |
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| 52387. |
Please usse yeh message bhej de copy paste krke.. ..adi i dont know achanak se tumhe kya hua hai..mujhe tumne ek mauka bhi nhi diya samjhane ka T_T..please mere liye ek baar on aa jao please...bhej de pratham plz |
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Answer» hiiiiiExplanation:__________ MAHILA ki EK Pratima Jisne France Mein LOGON ka RASHTRA pratinidhitva Kiya |
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| 52388. |
Fill in the blanks: _ are hard and shiny in appearance. |
| Answer» GOLD and silverExplanation:gold and SILVER are HARD and shinny in APPEARANCE. | |
| 52389. |
Nacl is example of empirical formula yes or no |
| Answer» WER is noHope it HELPFUL PLEASE MARK as BRAINLIST | |
| 52390. |
Write the formula of the chemical combination formed between the element 20L and 17B |
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Answer» The number PRECEDING an element symbol or compound formula tells how many ATOMS or molecules. If no number APPEARS before the symbol, there is only one atom or molecule. For example, consider the formula for the chemical REACTION that forms carbon DIOXIDE, C + 2O → CO2.Explanation:Hope it will help you |
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| 52392. |
Hg2cl2 is example of |
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Answer» (I) chloride is the chemical compound with the formula Hg2Cl2. Also known as the mineral calomel (a rare mineral) or mercurous chloride, this dense white or yellowish-white, odorless SOLID is the PRINCIPAL example of a mercury(I) compound.please mark me BRAIN mark LIST |
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| 52394. |
Type Which of the following statements is false regarding ordinary light? |
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Answer» tion:You have no post any statement here .PLEASE CHECK your QUESTION again. |
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| 52395. |
Nacl is example of empirical formulas |
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| 52397. |
What are the drawbacks of Rutherford atom model |
| Answer» OMIC model failed to explain stability of atoms. According to the model, electrons revolve around the positively charged nucleus. It's not POSSIBLE for a long run as we know atoms are STABLE while any PARTICLE in a circular orbit would undergo acceleration. During acceleration charged particles would radiate energy. Revolving ELECTRON will lose energy and finally fall into the nucleus. This model of atom also failed to explain the existence of definite lines in the hydrogen spectrum. ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ | |
| 52399. |
50 gram of sample of unknown metal worms from 25 degree 2 65 degrees Celsius after absorbing 400 capsules what is the specific heat of metal |
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Answer» tion:50 GRAM of sample of unknown metal worms from 25 degree 2 65 degrees CELSIUS after absorbing 400 CAPSULES what is the specific heat of metal |
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| 52400. |
A. Answer the following in not more than 20 words. 1. Give one example to show that heat is a form of energy. 2. What is temperature? Name the scales used to measure it. 3. If the hotness or coldness of a body is relative, how do we measure its degree of hotness? 4. Mention three changes that heat causes in substances. 5. A steel spoon dipped in a pot of boiling soup for a few minutes becomes too hot to touch. How does heat travel through the spoon? 6. How is it that we can hold a match while it is burning? 7. How does turning on a heater in a room make the whole room warm? 8. How does heat from the sun reach the earth? 9. Mention one similarity between heat and light. 10. When two bodies are in contact, heat flows from the hotter to the colder body. When does hea stop flowing? |
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Answer» 1= heat is a from of energy which PRODUCES a sensation in our body by way of which we make out whether a body is COLD,warm or hot. ex: solar energy and tidal energyExplanation:2= There are 3 temparature scales in use (I)= Fahrenheit,( b)= celcius and (3)= Kelvin. Fahrenheit temparature scales is a scale based on 32 for the boling point of water, the interval between the two being divided into 180 parts.(3)= we measured the hotness or coldness of a body by measuring its temparature and comparing with standard temparature scales.(4)= 1= change in state, 2= change in temperature, 3= change the LENGTH of the object5= heat travel through the spoon in the process of conduction in the process of conduction heat is transferred through solid so spoon is solid and good conducter of heat.6= we can hold match while it is burning as we hold only the wooden part of the matchstick. wood is bad conductor of heat and does have wavelength and frequency.7= when high voltage is passed it produce a large amount of heat the blowser situated in the heater blows this heat which diffuse in the room to make the room hot.8= The sun heats the earth through radiations.since there is no medium ( like the gas in null our atmosphere) in space radiations is the primary way that heat travels in space.9= light and heat, both are froms of energy and this energy is acquired from the sun which is the ultimate source of energy.one more similarity is,both light and heat have wavelength frequency10= The heat stop flow when same quantity of heat will REMAIN in both the bodies.it MEANS equal heat will be in both the bodies. |
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