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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your Class 11 knowledge and support exam preparation. Choose a topic below to get started.
| 2201. |
Is concept of spectrum is in syllabys or not? |
| Answer» Yah.. spectrum is in syllabus and one of the most important topic of chapter Atomic structure.<br>it is in the syllabus.. so don\'t skip it | |
| 2202. |
What is de Broglie law??? |
| Answer» | |
| 2203. |
WHAT IS LAW OF RECIPROCAL PROPORTION? |
| Answer» When two element combine separately with a fixed mass of third element ,then the ratio of masses in which they do so bears a small whole number ratio to the ratio of masses in which they themselves combine | |
| 2204. |
Molecular mass of h2o |
| Answer» H2O= 2+16=18u<br>Molecular Mass Of (h2o) is 18 u | |
| 2205. |
What is transition,inner transition and post transition element |
| Answer» | |
| 2206. |
Bond angle in h2s |
| Answer» Hybridization is sp3 shape is tetrahydral it contains 2 lone pairs so angle is smaller than 109.5˚ | |
| 2207. |
Volume of gas at STP and NTP |
| Answer» Full form nhi volume puchh rha hu<br>Volume of gas at STP means :- Standard Temperature and pressure.Volume of gas at NTP means:- Normal Temperature and pressure. | |
| 2208. |
What is metallic radius? |
| Answer» | |
| 2209. |
What is despersion force define |
| Answer» It is the weakest intermolecular force,t hat results whwn the two adjacent atoms occupy position ,that make the atoms form temporary dipoles......?? | |
| 2210. |
What is electron gain enthalpy ?? ? |
| Answer» Electron gain enthalpy is the energy released when one mole of electron are added to gaseous atoms of an element . Electron affinity is the same as Electron gain enthalpy but viewed as the energy supplied to the surroundings rather than the released by the atoms. Hence its sign is opposite from latter. | |
| 2211. |
The vapour density of gas x is 4 times that of oxygen then molecular weight of x will be |
| Answer» Molecular weight of oxygen=32u4/1=x/32X=128 | |
| 2212. |
" ANOUNCEMENT" Please Explain me about "Molecular Orbital Theory"??? God will bless uh.. |
| Answer» In chemistry, molecular orbital theory is a method for determining molecular structure in which electrons are not assigned to individual bonds between atoms, but are treated as moving under the influence of the nuclei in the whole molecules. Molecular orbital theory, which was proposed in the early 20th century, revolutionized the study of bonding by approximating the position of bonded electrons - the molecular orbitals - as linear combination of atomic orbitals.<br>Ye bhi baata do koi | |
| 2213. |
Explain about Dipole moment?If possible then make me understand through example???? |
| Answer» Dipole can mean two things in physics. The first is an eletric dipole which seprates the +ve chage. A simple example of this dipole is a pair of electric charges with the same magnitude but with the opposite type of charge (+ve and -ve) and are separated by a small distance from each other. The second is a magnetic dipole , a closed circulation of electric current. A simple example is a single loop of wire with electric current flowing through it.<br>welcome. ?<br>Thank u .....<br>For example,,, the dipole of HCL may be represented as::: H----|--->Cl... The shift in electron density is symbolised by crrosed arrow(--|---->)...<br>Dipole moment is a vector quantity and is represented by a small arrow ➡ with tail at the positive centre and head pointing towards the negative centre... +(end) - - |--> - (end)<br>The degree of polarity in the molecule is expressed by a term known as dipole movement... it can also be defined as the product of the magnitude of the change and the distance of separation between the charges..... dipole moment=charge ×distance of separation.. | |
| 2214. |
What os the colour and smell and melting and boiling point of carboxylic acid |
| Answer» | |
| 2215. |
What is si unit of density? |
| Answer» Kg per m3<br>Kg per meter cube<br>kg/m3 | |
| 2216. |
Explain bohr\'s model of an atom . (Postulates,limitations) |
| Answer» Limitations - he is enable to explain the zeeman effect and stark effect .no conclusion was given for the quantisation of angular momentum<br>You can find answer of this question in this app in revision notes of chapter2 of chemistry. | |
| 2217. |
how many gram of NaOH should be dissolved to make 100 cm^3 of 0.15M NaOH solution |
| Answer» | |
| 2218. |
Explain hand picking |
| Answer» it is of 6th class yarr anyway.. your answer is : The process used to separate slightly large particle from a mixture by hand is called handpicking... | |
| 2219. |
Explain term composition. |
| Answer» composition can be defined as the arrangement, ratio, and type of atoms in molecules of chemical substances. | |
| 2220. |
What is the kathode ray |
| Answer» Stream of negatively charged particle<br>Cathode rays is negatively charged.<br>And second, in simple word cathode rays are the negatively charged particle<br>First of all it is cathode rays | |
| 2221. |
Which is best book for chemistry |
| Answer» For learning and reading N.C.E.R.T Textbook ; N.C.E.R.T Examplar and For Practice Pradeep chemistry<br>Ncert and pradeep.. are best | |
| 2222. |
For chemistry which reference book is good ...pl.reply fast |
| Answer» Nutan physics book is very best for self study, this book language is very simple.<br>Modern abc of chemistry is the best because it has different types of questions and it is helpful for competitive exam also<br>Modern abc for chemistry and rd Sharma for mathematics<br>Also fr maths<br>I mean guide..<br>Modern publication<br>NCERT | |
| 2223. |
Which is best theory book of chemistry for iit |
| Answer» Modern abc<br>KC Verma<br>Arihant | |
| 2224. |
How we come to know that path in which electron revolve is circular...??? |
| Answer» Lkin ye baat prove ho chuki h k electon circular nhi elliptical path pr rotate krte h....my question is...how we get to know k electron circular path m rotate krte h<br>Centrifugal force and nuclear force both were acting on electron from opposite side so, the resultant force balance therefore, the electrons revolve in circular path<br>Satisfactory answer nhi mila mujhe whan bhi<br>Then u can search in google...there u can get a variety of reasons..<br>Mujhe smj nhi aaya<br>I m not totally sure but I think that the distance b/w electron and nucleus when electron is revolving is same which shows that it is circular... | |
| 2225. |
Why all radiation don\'t reach to n=1???? |
| Answer» Radiations are the possible ways how the electron come to n=1.When we give it energy it get exicted and reach at infinity,in order to get stable it loose energy and release radiation of certain wavelength.In this process,it will come across with all the series such as bracket to paschen to balmer to lymer.Therefore the conclusion is the electron at last come to n=1 but by following all the series. | |
| 2226. |
When we get totally black line spectrum |
| Answer» Agr hm lymenn ki baat kre toh uv rays hoti h usme ....uske spectrum m bhi black region aata h ....or vo black region bhi visible h...aesa hi case infrared rays m bhi milta h<br>Mujhe aisa esliye lagta hai kyoki black bhi ek colour hai jisko hum dekh sakte hai.... So entire hydrogen spectrum mai ek balmer series hi hai jo ki visible hai ... Sooo... Ager abhi bhi doubt hai toh I m sry ....<br>Aap itna btae aapko kyu lgta h aesa<br>Agr pta hota toh puchti hi kyu..<br>Mere ko toh ye hi lagta hai, if there is better ans. Then plz tell<br>?<br>Visible h toh black spectrum....ye kya logic hua<br>I think in Balmer series bcoz there the lines are visible | |
| 2227. |
What are the limitations of mendeleev periodic table |
| Answer» The limitations of mendeleev periodic table was as follows:-He could determine the position of hydrogen. He could not find the place of isotopes. He could not determine the atomic no. Of the elements | |
| 2228. |
Hey guys! Which is the best book of chemistry ( reference)11 plzz answer me |
| Answer» Learn in N.C.E.R.T Textbook ; N.C.E.R.T. Exampler and after that practice in PRADEEP CHEMISTRY.<br>Hc verma is really good<br>Modern ABC+ is the best book it gives the hole details about the topics<br>Only ncert<br>Ncert textbook if we study thoroghly itself more than enough | |
| 2229. |
Chemical bonding chap online test-2 question no.,5 answer me doubt h mujhe so guys plz check it |
| Answer» | |
| 2230. |
What are electrovolent bond |
| Answer» ?<br>Any body remembered me or forgotten...<br>Electrovalent bond is also known as ionic bond... The gaining and lossing of electrons is called electrovalent bond.... | |
| 2231. |
vsper theory draw structure of BeH2 |
| Answer» | |
| 2232. |
Is electron remains outside or goes inside after the electron ejected |
| Answer» Goes outside with a kinetic energy...<br>It goes outside with a kinetic energy<br>It goes inside other electron? | |
| 2233. |
Thomson model of atom experiment |
| Answer» | |
| 2234. |
How would you represent the electron having the following set of quantum number N=1,l=1,m=+1 |
| Answer» The no.of electron will be 3 | |
| 2235. |
Difference between molecular mass and molar mass? |
| Answer» Mass of 1 molecule, mass of 1 mole of molecules. These are d differences | |
| 2236. |
How to calculate empirical formula and molecular formula |
| Answer» Divide each mole value by the smallest number of moles calculated. Round to the nearest whole number. This is the mole ratio of the elements and is represented by subscripts in the empirical formula. Start with the number of grams of each element, given in the problem. | |
| 2237. |
what are antiacisds? |
| Answer» Antacid used when we suffering from acidity it is a mild base which provide relax for acidity | |
| 2238. |
Chemistry syllabus ? |
| Answer» Ur**<br>It depends on us school<br>For halfyearly part 1 complete | |
| 2239. |
What is average atomic mass? |
| Answer» Thanks for help ?<br>Average atomic mass is the isotopic nature of the atoms.Eg:-cl | |
| 2240. |
What is kernel in the chap केमिकल bonding |
| Answer» Kernel means (nucleus alongwith inner electrons) except valence shell electrons | |
| 2241. |
What is the structure of No2 |
| Answer» In the Lewis structure for NO2 the Nitrogen atom is the least electronegative atom and goes at the center of the structure. For the NO2 Lewis structure, calculate the total number of valence electrons for the NO2 molecule. | |
| 2242. |
The density of 3 mol/L solution of NaCl 1.25g/mL. Calculate molality of the solution. |
| Answer» | |
| 2243. |
5.85g Nacl dissolve in 100ml water . what is the value of molarity? |
| Answer» | |
| 2244. |
0.115 gm of Na was dissolved in 500ml of the solution in distilled water of solution would be |
| Answer» it\'s incomplete questions.. coz what we have to find you didn\'t mention it.. | |
| 2245. |
Electron Gain Enthalpy describe |
| Answer» Amount of energy released when an electron is added to an isolated gaseous neutral atom is called electron gain enthalpy. It is denoted ∆egH . Higher the energy released in the process of taking an Higher the value of electron gain enthalpy of an atom, the more is the tendency to change into anion. Factors Affecting Electron Gain Enthalpy : (i) Effective Nuclear Charge. (ii) Atomic size (iii) Shielding Effect (iv) Half Filled and Fully Filled orbitals. | |
| 2246. |
Sample paper 2020 .21 |
| Answer» | |
| 2247. |
Observations of column chromatography |
| Answer» | |
| 2248. |
Mcq of chemistrt |
| Answer» Mcqs | |
| 2249. |
Mass %of an element on water |
| Answer» Mass % of H =11.11 and mass % of o =88.88 | |
| 2250. |
Determine the emperical formula of the compound which as 69.9 iron and 30.1 oxygen |
| Answer» Fe2O3 it\'s the correct answer<br>It ncrt question bro<br>Fe1 and o2<br>Elements of fe and o<br>Elements | |