InterviewSolution
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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.
| 4901. |
Hey !! Anyone online |
| Answer» Hiiiii Ayush<br>Yes<br>Yes<br>Ohk<br>No<br>Do u know Sahil here??<br>I m in 10th class<br>What\'s ur name<br>Hii<br>Yes | |
| 4902. |
What is the difference between hydrolisation and hydration |
| Answer» The difference between hydration and hydrolysis is that hydrolysis is the process of breaking of compounds using water, whereas hydration is defined as the electrophilic addition reaction, and there is no cleavage of the original molecule. In hydration, the water molecules are added to the substance. | |
| 4903. |
How can we find the empirical value of an element.? |
| Answer» | |
| 4904. |
Sir how does oxidation number varies in period and group |
| Answer» | |
| 4905. |
Why boiling of liquid doesn\'t occur in a closed container? |
| Answer» Because in closed vessel the amount of liquid is constant i.e the water which is converted into vapour again condense to form water and boiling occurs when vapour pressure is equal to atmospheric pressure since it is closed so they couldn\'t be equal | |
| 4906. |
Why rotation around pi bonds is not possible |
| Answer» | |
| 4907. |
Why electro gain enthalphy of sulphur is more negative than oxengen |
| Answer» Or orbital increase and shell no increase<br>Due to size of an atoms... | |
| 4908. |
Why mole has not si unit |
| Answer» As mole is itself a unit of Amount of Substance denoted by\xa0mol.\xa0It is one of the Seven basics unit of S.I. System!!!! | |
| 4909. |
Why chlorine has more negative electron gain enthalpy than florin |
| Answer» Because chlorine has tendency to accept or attract more electron due to big size but fluorine has small size and it only attrct the electron ....<br>This happens because with increase in size electron gain enthalpy becomes more negative ? | |
| 4910. |
Hybridization of pcl5 |
| Answer» No.of valence e- in phosporous(P)+No.of monovalent atom(Cl5) divided by 2=5+5/2=5 : sp3d<br>sp³d | |
| 4911. |
Isoo electron speies of F,O-2 |
| Answer» | |
| 4912. |
State hund\'s rule of maximum multiplicity |
| Answer» | |
| 4913. |
Why electron cannot exist in atomic nucleus |
| Answer» | |
| 4914. |
What is huckal rule and it application. |
| Answer» | |
| 4915. |
Who first observe photoelectric effect |
| Answer» Vhdgo<br>Albert Einstein<br>Alberto einstein | |
| 4916. |
Why H2O has higher dipole moment in comparison of h2O2 ? |
| Answer» | |
| 4917. |
What is first term syllabus |
| Answer» Private ka may be first book .....and govt. Ka 1 to 5 chapter...... | |
| 4918. |
Shape of SF4 according to hybridisation |
| Answer» Trigonal bipyramidal | |
| 4919. |
Isolated place???? |
| Answer» An isolated place is a long way from other places and is often difficult to get to. | |
| 4920. |
Explain the compressbility factor for a gas |
| Answer» | |
| 4921. |
Kitne chapters aa rahe hai |
| Answer» 8 | |
| 4922. |
What is the covalence in ALCL3 |
| Answer» It is a example of limitation of Octet | |
| 4923. |
What is Hybridisation\'s |
| Answer» Hybridisation is the phenomenon of overlapping of orbitals and intermixing of orbitals having equal energies or nearly similar energies<br>It is the intermixing of various atomic orbitals of different shape, size and energy to form new orbitals of same shape, size and energy. | |
| 4924. |
Number of pi bonds and sigma bonfs in naphthalene structure is |
| Answer» | |
| 4925. |
Write a short note on redox reaction in 40 to 50 words |
| Answer» [Redox] means (Red)reduction and (Ox)oxidation.redox reaction is a chemical reaction in which both reduction as well as oxidation process occur.these reactions are always energy change in the form of heat,electricity & light.there are two types of redox reaction direct and indirect reaction.<br>Redox reaction | |
| 4926. |
O2 is paramagnetic while O2²- is diamegnetic. Explain. |
| Answer» If any of the molecular orbital contains unpaired electrons, it is regarded as paramagnetic. Since O2 has (pi*2Px1=pi*2Py1) config. its paramagnetic while O2²- has (pi*2Px=pi*2Py²) config. it is diamagnetic. | |
| 4927. |
Explain wave mechanical model of atom |
| Answer» | |
| 4928. |
What is Fajan\'s Rule? |
| Answer» | |
| 4929. |
Value of vander Waals constants a and b |
| Answer» Values of vander walls constants depend upon nature of gas | |
| 4930. |
Is there any specific formula for diamond? |
| Answer» diamond is an allotrope of carbon. Its symbol is C | |
| 4931. |
Effect of heat on blue vitrol? |
| Answer» Blue vitriol, as we know it, is\xa0hydrated Copper(II) Sulphate, meaning CuSO4.5H2O.That 5H2O is the\xa0water of crystallization\xa0or the\xa0water of hydration. Those 5 molecules of water simply constitute the crystal i.e, they are merely embedded in between CuSO4 atoms.When blue vitriol is heated, those water of crystallization escape out of the crystal and what\'s left is\xa0anhydrous copper sulphate\xa0or simply CuSO4, without any water of crystallization.\xa0<br>By heating blue vitriol the H2O molecules get remove from cuso4 due to this the blue colour fade and change into white | |
| 4932. |
What is inductive effect? |
| Answer» An inductive effect is an electronic effect due to the polarisation of σ bonds within a molecule or ion. This is typically due to an electronegatvity difference between the atoms at either end of the bond. | |
| 4933. |
What is the vsepr shape of sulphur dioxide |
| Answer» Bent shape due to presence of lone pairs<br>Trigonal | |
| 4934. |
Why molarity preper molality? |
| Answer» | |
| 4935. |
Electromeric effect |
| Answer» | |
| 4936. |
Valence |
| Answer» | |
| 4937. |
Determine the charge of 1mole electron |
| Answer» | |
| 4938. |
whay is ioniaation |
| Answer» | |
| 4939. |
Compare the dipole moment so2and co2- |
| Answer» In Carbon dioxide molecule, Carbon shares its four valence electrons with oxygen. Because there are no lone pair electrons left on carbon it is a linear structure and has no dipole as the dipole of the two C=O bonds cancel each other out. The EN arrows point towards Oxygen. The arrows are opposite of each other and have the same EN difference (symmetrical geometry). Therefore, we have no net charge and the molecule is non-polar.In SO2, Sulfur has 6 valence electrons, two more than Carbon. It is a bent molecule, existing as a resonance structure, with a lonepair of electrons on the S. The molecule has an S-O single bond and an S=O double bond. The molecule is trigonal planar because there are three electron domains around the central sulfur atom. The bond dipoles moments do not cancel out each other. It hasa dipole moment which is vector sum of all the bond moments (non-symmetrical geometry) and the molecule is polar.<br>In so2 dipole moment direction is from oxygen to sulphur because sulphur is highly positive then oxygen so it attract electrons towards it so sulphur become negative but in co2 dipole moment direction is from carbon to oxygen because oxygen has more proton than carbon so oxygen attract electrons towards it so oxygen become negative this is difference between so2 and co2 | |
| 4940. |
Why He2 molecule does not exist |
| Answer» Because it\'s bond order is 0.<br>Because according to VBT the attractive force are less then the repulsive for.so that why HE2 don\'t form<br>According to quantum theory of chemical bonding He 1s^2 has 2 electrons due to this orbitals doesn\'t overlap each other so He2 doesn\'t exist | |
| 4941. |
I\'m confused in the electronic configuration of iron please tell me |
| Answer» 1s^2,2s^2,2p^6,3s2,3p6,3d8 | |
| 4942. |
Derivation of 2.303nRt log vf/vi |
| Answer» jkkkkkk | |
| 4943. |
Molar mass of h2o |
| Answer» 18 , h2=2 , o=16 , .H2+o=2+16=18<br>18.02 g/mole moles to grams.For example, the molar mass of water is 18.02 g/mol. Thus: 1 mole H2O = 18.02 g H2O. | |
| 4944. |
All formula of structure of atom |
| Answer» | |
| 4945. |
Why ionization enthalpy Berrelyium is greater than boron |
| Answer» first understand what is ionization enthalpy : this enthalpy sometimes called ionization enegy, it suggest that amount of enegy is required to convert atom into ion or removal of electron from its outermost shell.now we have to find electronic configuration of beryllium and boron , beryllium has 2 electrons in its outer most s-subshell, whereas boron has 2 electrons in s-subshell and 1 electron in 2p orbital , now we know that electron repels each other so 2s orbital of Böron apply repulsive force on 2p orbital so they easily comes out ,but berylium has 2 electrons at 2s orbital , in this state both electrons of 2s orbital are moving in opposite direction so they can not apply any repulsive force on each other hence to remove an electron we have to supply total amont of energy.i hope u understand, if not please send me email on [email\xa0protected] so i can show u it by presentation. | |
| 4946. |
The density of 3M solution of Nacl is 1.25gml calculate molality of the solution |
| Answer» {tex}Molality = {Molarity \\over Density}{/tex}{tex}Molality = {3 \\over 1.25}{/tex}=> Molality = 2.4 m | |
| 4947. |
Give the solution of equationMno4-No2-=Mn+2+No3- by lon electron method |
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| 4948. |
What does wavenumber tells us about atoms? |
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| 4949. |
Which is greater in size O2- or F-????????? |
| Answer» O2 | |
| 4950. |
Which has higher bond enthalpy and why h-h or cl-cl |
| Answer» | |