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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.
| 2301. |
Isomers of c4H8O |
| Answer» There are total 10 isomers including functional groups | |
| 2302. |
Draw Molecular Structures of Different types of benzenoid compounds |
| Answer» | |
| 2303. |
How to identify the degrees of compounds? |
| Answer» | |
| 2304. |
Calculate bond order and tell magnetic in para or dia of B2,C2,N2,N2+,N2-,O2,O2+,O2-,O22- |
| Answer» | |
| 2305. |
The IUPAC NAME OF C6H5COCL |
| Answer» Benzoyl chloride | |
| 2306. |
How will you converd ethanoic acid into benzene |
| Answer» | |
| 2307. |
Ionic bond? |
| Answer» The bond which is formed by transfer of electron between two or more atoms<br>Sry kyu bhai? ? | |
| 2308. |
What is oxidation number ? Explain. |
| Answer» The total number of electrons that an atom either gains or loses in order to form a chemical bond with another atom | |
| 2309. |
Chemistry means kya mistri...?????? |
| Answer» Its a fucable question<br>Time...<br><br>So funny ! | |
| 2310. |
The graph of Boyle\'s law P vs V is a) straight line b) parallel to x axis c) Parabolad) hyperbola |
| Answer» The exact answer is rectangular hyperbola. So correct option is (d)<br>ParabolaPV=constantInc in pressure results in dec in volumeAnd vice versaHence the graph which satisfy this condition is PARABOLA. | |
| 2311. |
Equilibrium constant? |
| Answer» Hii<br>thank you time! Bbyee bhai! ☺<br>The value of the reaction quotient when equilibrium is achieved by a reaction is known as the equibrium constant.ΔG=ΔG0+RTln(K)at equilibrium,\xa0ΔG=0,\xa0ΔG0=−RTln(K) | |
| 2312. |
Chemistry....? |
| Answer» Ohh? ho jayega sbb complete... abhi 2 mahine h?<br>naii bss english hua h? Or maths me 2 chapter bacha h... Or koi nhi hua abhi ?? | |
| 2313. |
What it means \'accha ni bol skte to bura mt bolo\' ? Why you humans cannot understand a thing ! |
| Answer» take the good one ignore the bad one , life has many things for you<br>Take it lightly and then just see what the nature will do ! Say I am doing \'bakwas\' , by time you will what the time was when the time warned!<br>Now see this year will show you than cry ! | |
| 2314. |
So much \'khushfehmi\' for 2021 ! Remember all will cry more than 2020 in this year!!! |
| Answer» This year will go more adventurous and exciting, than before and will bring out the stronger ones from inner us. We will fight not cry.. Be happy.. Be +ve.. Think +ve.. Happy new year everyone<br>Be positive brooo ? agar achha nhi soch or bol skte.. To bura bhi mat bolo.... aur na hi hum 2020 me roye the.. na royenge 2021 me ? | |
| 2315. |
Equilibrium? |
| Answer» Gyi thi bhai ? ab 9 bje jana hota h.... | |
| 2316. |
what values was expressed by mendeleev |
| Answer» “The physical and chemical properties of elements are a periodic function of their atomic weights”This means that physical and chemical properties of elements depends on their atomic weight such that on arranging elements in increasing order of atomic weight, elements with similar properties are repeated after regular intervals of increasing atomic weight. | |
| 2317. |
How to attach picture Please tell me in app questions please tell |
| Answer» Aree very simple<br>How to calculate formal cherge | |
| 2318. |
Are exam fear videos of 11 from jee point of view or from school point of view? please tell anyone |
| Answer» Ok<br>I think exam fear videos are from school point of view | |
| 2319. |
What is mass percentage composition of each element present in ehanol |
| Answer» What is mass percentage composition of each element present in ehanolAnswer: | |
| 2320. |
What is mass percentage composition of each element present in ethanol |
| Answer» What is mass percentage composition of each element present in ethanol | |
| 2321. |
Are yar kya lagta h 9th aur 11th ke paper honge final |
| Answer» Yes clearly | |
| 2322. |
Are exam fear videos of 11 from jee point of view or from school point of view? please tell |
| Answer» | |
| 2323. |
How to attach picture Please tell me in app questions |
| Answer» But some are doing<br>Yo cannot do that | |
| 2324. |
what are the common physical and chemical features of alkali metals |
| Answer» Common physical features of alkali metals:(1) They are soft and can be easily cut.(2) They have silvery white appearance. They are light coloured.(3) Due to large atomic size, they have low density. On moving down the group the density increases with exception of K which has lower density than Na.(4) Due to weak metallic bonding, alkali metals have low melting and boiling points.(5) They provide characterisitc colour to flames.(6) They show photoelectric effect. On irradiation with lightCs and K lose electrons.Common chemical features of alkali metals:Due to low ionization enthalpy, akali metals have high reactivity.On moving down the group, the reactivity increases.(1) On reaction with water, oxides and hydroxides are formed.On moving down the group, the reaction becomes more and more vigorous.(2) On reaction with water, hydroxide and hydrogen are formed.2M+2H2\u200bO→2MOH+H2\u200b(3) On reaction with hydrogen, hydrides are formed.2M+H2\u200b→MH(4) They directly combine with halogens to form ionic halides. Li is an exception.2M+Cl2\u200b→2MCl,(M=Li,K,Rb,Cs)(5) They are strong reducing agents. On moving down the group, the reducing power increases with exception of Li. Due to high hydration energy, Li is the strongest reducing agent among alkali metals.(6) They dissolve in liquid ammonia. The solution is deep blue in colour due to presence of ammoniated electrons. | |
| 2325. |
What makes carbon to show allotropic forms? |
| Answer» Allotropy\xa0is occurence of an element in two or more forms which have the same chemical properties but differ in physical properties.\xa0Carbon\xa0has a difference in atomic arrangement in the crystal structure and its valency results in\xa0allotropy | |
| 2326. |
Is it necessary to do chapter 2 first than chapter11 |
| Answer» | |
| 2327. |
What was the birth place of Dmirti Mendeleev |
| Answer» He born in Tobalsk siberia in Russia you also right<br>Russia but don\'t know exact place | |
| 2328. |
How to attach picturePlease tell me! |
| Answer» It\'s not a joke<br>Arey vo yeh Puch RHA hai ki iss app PE kaise picture attach karte hai question ke sath | |
| 2329. |
Which element find attached the place of eka-silicon |
| Answer» Germanium was called eka-silicon in Mendeleef\'s time.<br>You are right ?????<br>Might be germanium but sorry not to sure | |
| 2330. |
What was The density of Gallium |
| Answer» The boiling point for\xa0Gallium\xa0stands at approximately 2200 degrees Celsius, and its\xa0density\xa0is 5.907 grams per cubic centimetre which is high like the\xa0density\xa0of water. | |
| 2331. |
What is optical isomerism? |
| Answer» Optical isomerism is basically a type of stereoisomerism. Now, before we learn about optical isomerism let us quickly recall what are isomers and stereoisomers. Isomers are those compounds which have the same molecular formula but different bonding arrangement among atoms.Whereas, in stereoisomer, both molecular formula and bonding arrangement of atoms are the same. However, they have different spatial (three dimensional) arrangement of atoms. It eliminates all different arrangements that are simply due to the molecule spinning in its entirety or revolving around unique bonds. | |
| 2332. |
What is conveyed by the magnitude of lattice energy? |
| Answer» The higher the\xa0magnitude of lattice energy, the stronger the ionic bond formed. This is because more\xa0energy\xa0is released when strong bonds are formed. | |
| 2333. |
What is spectroscopy? |
| Answer» \tWhere one-colour merges into another and there is no definite boundaries, that spectra is called\xa0continuous spectra.\tIf we study it for atoms the spectra obtained is\xa0discontinuous spectra.\tThe study of spectra is called\xa0spectroscopy | |
| 2334. |
Importance of analytical chemistry |
| Answer» Some important applications of this branch of chemistry are listed below.\tThe shelf lives of many medicines are determined with the help of analytical chemistry.\tIt is used to check for the presence of adulterants in drugs.\tSoil can be tested to check for appropriate concentrations of minerals and nutrients that are necessary for plant growth.\tIt is employed in the process of chromatography where the blood samples of a person are classified. | |
| 2335. |
Chromatography.....? |
| Answer» Chromatography: It is a technique used to separate mixtures in to their components, purify. Compounds which can be solid or liquid and also test the purity of compounds.\tIn this technique the mixture of substances are applied on to a stationary phase .Then a pure solvent or a mixture of solvents is allowed to move slowly over stationary phase .The components of mixture gets gradually separated from one another .The moving phase is mobile phase .\xa0The chromatography is classified into two categories:\tAdsorption chromatography\tPartition chromatography | |
| 2336. |
Merry Christmas to all my dears...???\u200d??\u200d? |
| Answer» Pk kaise ho bro<br>Kha ho sab..?? | |
| 2337. |
Name the chemist of nagaland |
| Answer» | |
| 2338. |
What is screening effect ? How is it related to IE? |
| Answer» The actual charge felt by the valence shell electron is called effective nuclear energy. It is denoted by\xa0zeff and the repulsive forces felt by valence shell electrons from the electron present in the inner shell is called shielding effect or screening effect.zeff = total nuclear charge −\xa0screening constant (σ)Screening constant = total nuclear charge − zeffGreater the number of electrons in inner shells larger will be the screening effect. With increase in screening effect\xa0zeff\xa0will be decreased.As the force of attraction by the nucleus for the valence shell electrons decreases and hence the ionization energy decreases. In other words an increase in the number of electrons in the inner shell leads to decrease the ionization energy.\xa0<br>The electrons present in the inner shells act as screens between the nucleus and the valence shell electrons. In order words, these electrons partially neutralise the force fo attraction fo the nucleus, over the valence electrons. This is called, \'shielding or screening effect\'.When the screening effect increase (No. of inner electron-shells increase), the IP decreases.THe magnitude of screening effect ∝1/I.P. | |
| 2339. |
Define mole..?? |
| Answer» 1 mole is equal to avogadro number of molecules<br>Mole ConceptTerm mole was suggested by Ostwald (Latin word mole = heap)A mole is defined as the amount of substance which contains same number of elementary particles (atoms, molecules or ions) as the number of atoms present in 12 g of carbon (C-12).1 mol = 6.023 * 1023\xa0atoms = one gram-atom = gram atomic mass1 mol = 6.023 * 1023\xa0molecules = gram molecular massIn gaseous state at STP (T = 273 K, p = 1 atm)Gram molecular mass = 1 mol= 22.4 L = 6.022 * 1023\xa0molecules | |
| 2340. |
Any class 12th student contact me please I want help in my study |
| Answer» | |
| 2341. |
MnO 4 + Fe^ 2* MnO 2 + Fe^ balance the equation in basic medium by ion election method |
| Answer» | |
| 2342. |
What is enthalpy of atomisation? |
| Answer» The enthalpy of atomization is the enthalpy change that accompanies the total separation of all atoms in a chemical substance. This is often represented by the symbol ΔₐₜH or ΔHₐₜ. All bonds in the compound are broken in atomization and none are formed, so enthalpies of atomization are always positive.<br>Enthalpy of atomization, ΔaH0, is the change in enthalpy when one mole of bonds is completely broken to obtain atoms in the gas phase. For example: atomization of methane molecule.CH4\xa0(g) →\xa0C (g) + 4H (g) ΔaH0= 1665.0 kJ mol-1For\xa0diatomic molecules, enthalpy of atomization is equal to the enthalpy of bond dissociation. For example: atomization of dihydrogen molecule.H2\xa0(g) → 2H (g); ΔaH0= 435.0 kJ mol-1 | |
| 2343. |
0.0049 g of H2SO4 sulphuric acid have been dissolved to prepare 400cm³ solution. Calculate pH???? |
| Answer» | |
| 2344. |
Latent heat? |
| Answer» Latent heat is energy released or absorbed, by a body or a thermodynamic system, during a constant-temperature process — usually a first-order phase transition. Latent heat can be understood as energy in hidden form which is supplied or extracted to change the state of a substance without changing its temperature.<br>Hii aadya<br>Agent aadya???☺️<br>Jo hota h vhi bolta h?<br>Aadya dalli? | |
| 2345. |
General organic chemistry |
| Answer» | |
| 2346. |
Chemistry... |
| Answer» Bj<br>Hi | |
| 2347. |
Molar mass...? |
| Answer» Aadu suno<br>Hlw bhai?<br>Bro seraj,sowndu, smarakee se bat hota h kya...<br>Molar mass (M) is the mass of 1 mole of a chemical substance. The unit for molar mass is\xa0grams per mole\xa0or g.mol−1-1. | |
| 2348. |
Define mole.... |
| Answer» The mole is the unit of measurement for amount of substance in the International System of Units<br>Sowndu se<br>Nhi meri baat nhi hoti seraj, Smarkakee se<br>Mole ConceptTerm mole was suggested by Ostwald (Latin word mole = heap)A mole is defined as the amount of substance which contains same number of elementary particles (atoms, molecules or ions) as the number of atoms present in 12 g of carbon (C-12).1 mol = 6.023 * 1023\xa0atoms = one gram-atom = gram atomic mass1 mol = 6.023 * 1023\xa0molecules = gram molecular massIn gaseous state at STP (T = 273 K, p = 1 atm)Gram molecular mass = 1 mol= 22.4 L = 6.022 * 1023\xa0moleculesStandard number 6.023x 1023\xa0is called Avogadro number in honour of Avogadro (he did not give this number) and is denoted by NA.The volume occupied by one mole molecules of a gaseous substance is called molar volume or gram molecular volume.Number of moles = amount of substance (in gram) / molar mass | |
| 2349. |
What is zero over lap |
| Answer» Zero Overlapping of Atomic Orbital – When the orientation of two interacting atomic orbital is such that there is no overlapping of the orbital, that is known as zero overlapping.The unsymmetrical overlap of orbitals results in zero overlap i-e; between px-s and pxpy orbital | |
| 2350. |
What is Lewis acid? ? |
| Answer» Hii ☺<br>Hii sis<br>Lewis conceptAccording to him:Acids: They are those which accept a pair of electron.For example: substances that falls in this category:\tCations like ammonium ion etc\tAll neutral electron deficient compounds like BF3, AlCl3\xa0etc\tAll those which have empty d orbital like SF4\xa0etc\tAll those different elements with different electro-negativities but bonded with multiple bonds like carbon dioxide etc. | |