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.
| 51. |
What is Heisenberg uncertainty rule |
| Answer» Book mein dekh<br>According to Heisenberg ,it is impossible to measure both the position and momentum of moving particle with accuracy.\tIf value of position is small ,it can be measured accurately but not momentum.\tIf value of momentum is small it is measured accurately but not the position.<br>According to Heisenberg it is impossible to determine the exact position and exact momentum of an atom at the same time. | |
| 52. |
Structure of P4O10 |
| Answer» | |
| 53. |
Can any body explain what the hell this SPDF is ?(in simple language) |
| Answer» S= Sharp P= Principal D= Diffuse F= Fundamental S, p,d,f are the names of subshells within a shell whose values are determined by azimuthal quantum number. Their respective azimuthal quantum numbers are 0, 1, 2 and 3. These terminologies are adopted from Spectroscopic analysis of matters.<br>Subshells | |
| 54. |
What is thermodynamics?? |
| Answer» Thermodynamics is the branch of physics that deals with the concepts of heat and temperature and the interconversion of heat into other forms of energy. | |
| 55. |
Hello everyone can u tell me what is hybridisation |
| Answer» Hybridization is a process in two atoms are hybridised to a molecules when the there is any unpaired electons in there shell or orbits. This process of forming molecules by complete mixture of two atons in single molecule called Hybridisation.@Its Krish...<br>Thank Aditi very much yaar<br>According to chemistry it is intermixing of compound<br>The process of an animal or plant breeding with an individual of another species or variety."these irises are the products of hybridization carried out by a plant breeding firm"@diti? | |
| 56. |
What is quantom number |
| Answer» Chemistry chapter 2 atchece phar<br>It is address of the loction of electrons.<br>Quantum number is a special number which gives the information about the particular electron which makes it different from all other electrons present in the same atom<br>Quatum numbers are actually the most accurate addresses of the electron in the atom.i.e, one electron in an element can have only one complete address. P.qn. tells the shell no./ Az.q.no. tells the subshell ( i.e, further division of shells) and msg.q.no. tells the orbital orientation or only orbital.The last q.no. definition is not cleary specified but we knew them as the direction of motion of electron in orbitaleither clockwise / anticlockeise. | |
| 57. |
What is Gay Lussac Law of gaseous volume |
| Answer» yogita is right<br>Gay-Lussac\\\'s Law of Combining Volumes:When gases react, they do so in volumes which bear a simple ratio to one another, and to the volume of the gaseous product, provided that all the volumes are measured at the same temperature and pressure.Example:One volume of hydrogen when mixed with one volume of chlorine, gives two volumes of hydrogen chloride gas at the same temperature and pressure.H2 + Cl2 → 2HClThus the ratio 1:1:2 is simple. | |
| 58. |
Write the hunds rule and Pauli exclusive rule |
| Answer» Hunds rule - Pairing of two electrons in the orbitals belonging to the same subshell does not take place until each orbital belongingt to that subshell has got one electron each. Pauli exclusive rule - Only two electrons may exist in the same subshell and these electrons must have opposite spin.<br>Hunds rule - In an equal energy orbitals we can\'t pair the unless and until each orbital is singally occupiedPauli\'s exclusive rule - an orbital can have maximum two electrons with opposite spin. | |
| 59. |
Difference between molality and molarity |
| Answer» \tMolalityMolarityMass of the solventVolume of the whole solutionUnit sign expressed as (m) <amp-mathml data-formula="\\[\\small \\left (m \\right )\\]" inline="" layout="container"></amp-mathml>Unit sign expressed as (M) <amp-mathml data-formula="\\[\\small \\left ( M \\right )\\]" inline="" layout="container"></amp-mathml>It has units of <nobr>moles/kg</nobr><amp-mathml data-formula="\\[\\small moles / kg\\]" inline="" layout="container"></amp-mathml>It has units of <nobr>moles/liter</nobr>\t<br>Molarity- It can be defined as no of moles of solute per litre solution.Unit is mol/litre.Molality-It can be defined as no of moles of solute per kilogram of solvent.Unit is mol/kg. | |
| 60. |
Atomic spectra |
| Answer» | |
| 61. |
Which type of questions come in exam from quantum number for 20 marks questions |
| Answer» Supriya you can see in this app for ur question Thanks @diti | |
| 62. |
At NTP what will be the volume of molecules of 6.022 X 10 raise to the power 23 of H2? |
| Answer» | |
| 63. |
Comment on the statement 1mole of h2o |
| Answer» The mass of one mole of any atom/molecule is equal to its atomic molecular mass in grams.The molecular formula of water is H2O The atomic mass of H = 1The atomic mass of O = 16In a sense, the formula means H + H + O So... 1 + 1 + 16 = 18Therefore, the mass of one mole of water = 18 GramsThanks @diti? | |
| 64. |
Hlo Every One,Kha chle gye aap log.!!!!!!@aditi ji |
| Answer» Ok<br>Ok<br>Bye tc see u Friend<br>I ll come at 8<br>ok.Bye bye.<br>Bye now otherwise the mentors will block us on this app<br>Ok if not i will come at 8 to 9<br>Can u come betwween 10 to 11...<br>When will be talking us today.Tym?? app this only.Ok<br>Yaa.U too ok.<br>Ok i will come...but Krish take care of urself?<br>ok.Bye bye.U too take care.Nd remove the thought of sucide from uor mind ok.Be happy and cheerfull<br>No i can at 8-9 but at that neither yash nor Honey will be there...ok bye Friend take care c u again...<br>Ok.sure.But why dont u come.Plz come naa<br>If i will not come then u plzz tell it to (Honey???) & (Yash?) too<br>Yaa sure.I ll be there.But it is too late naa.12 O clock.<br>Will u come at night for talking friend??<br>Tell him.To report both of them from this app.ok<br>Yes.<br>Ya he is this app only and yash too i will about both of them .....iwill tell now at night plz u too also come ok....& say what they had talked about me??<br>How is honey.I think he is uor best frend.Yes tell to him about them<br>Bye.....I will tell him now<br>Nooo it very bad environment here not for studying but doing vulgar & the Friends are just hilarious bastar foolish brothers .....im gonna tell honey about Ayush & Joy ....wait n watch???????????????????????<br>yes.But Abhi bhi yrr tum usi baat ko.Le krr baithi ho.I told u naa.Removoes those word from uor mind.<br>I can\'t sleep at night bcz of those bloody friends & brothers<br>Aditi plz dont go from this.App.It is a great envirnoment for.studying as wellas for mood relexing.Great for geting new frends.Is it?<br>I think u gona crzy.Dont cry.Never talk to them.Ok<br>I will never come on this app again.....bye to all of my dearest friends....bye Forever ???????????<br>They are not gud.U just romove that chat from uor mind.Ur not fake.<br>I will die my friend ...u plzz Don\'t mind...???????<br>Hlo aditi.Never do thought of sucide.Ok.<br>See below chats..what they eaid that im fake...ok if im fake plzzz dont talk to me...Both of them?????????????<br>What are u saying.Are u gona crzy.Talking about diying.I told u na .Dont mind them.Plz .Dont do that.<br>I will dienow??????????????<br>yes .It was bad .But u dont mind.Ok.Be happy always.<br>I will do....<br>Gow can they say that about me...& Ayish i made a good brother of mine on this app....how can he do it???????????????????<br>Yes i seen.It was hardious.Not apprtiatable.Both chated worng.<br>See...??????<br>See the chats below & upper chats with 131 conments????.....i dont want yo live now...????????????<br>kb??,i dont know?, what happend yesterday. Becoz i was not online at the late night!<br>Akhand kal kya kya hua mere baare mai....??????????????????????<br>So?<br>I studies in FIITJEE Delhi<br>I also kis school me padhte ho<br>I m from u.p near laxmi mandir<br>from where r u? I am from Kashi<br>oh hy,ayush. Whatsup?<br>Bol yaar i also the friend of aditi | |
| 65. |
Ifudig jfuvifi r7gh vf7u त्ज्घोईब्द ह्द्विय्ह्ज झ |
| Answer» | |
| 66. |
What do you understand by octet rule??? |
| Answer» Eight electron in the outer most shell<br>Basically it state that there are eight electron in outermost shell of an electron | |
| 67. |
Define one atomic mass unit (amu).? |
| Answer» Mass of<br>You can define it also as 1/16 of an O2 atom<br>amu is the atomic mass unit denoted by \'u\'. It is the mass of 1/12 Carbon-12 atom. | |
| 68. |
Calculate the no. Of moles in 350cm cube of CO2 at 273k and 2 atom |
| Answer» | |
| 69. |
Calculate the percentage composition of ca(no3)2 |
| Answer» | |
| 70. |
why the size of oxygen is greater than size of nitrogen?? ?? |
| Answer» Because from left to right atomic size decreases because within period the outer electronsare in same valence shell and the effective nuclear charge increases | |
| 71. |
How to make notes and to score good marks in all subjects of physics, chemistry, math please tell |
| Answer» Vedantu is the Best????????????????<br>Ncert is the best source.......Just read and write the notes<br>For maths get the help of unacadmey<br>Make notes of physics wallah. For phy and chemistry.<br>Get it on google | |
| 72. |
Who has studied the Solid State Chapter.What is its moto to study that chpter?, |
| Answer» | |
| 73. |
How are physical properties different from chemical properties? In short |
| Answer» \tChemicalPhysicalChemical properties are properties that can be observed or measured when a substances undergoes a chemical change.Physical properties are properties that can be observed without bringing a chemical change.A chemical reaction needs to be conducted to show the property.No chemical reaction is needed here.Chemical properties are connected to chemical bonds of a substance.Physical properties do not have such relationship.It can be used to predict how substances react.It is mostly used in identifying or describing the substance.Chemical properties of a substance can include buoyancy, viscositycompressibility, radioactivity, toxicity, flammability, heat of combustion, reactivity between chemicals, etc.Examples of physical properties include:molecular weight, boiling point, melting point, freezing point, volume, mass, length, density texture, color, odor, shape, solubility, etc.\t | |
| 74. |
What is polyvalency |
| Answer» | |
| 75. |
What is the chemical formula of tribromo octa oxide? |
| Answer» Br3 O8 | |
| 76. |
Definatation of atom |
| Answer» atoms are defined as the basic building blocks of matter. it is the smallest constant unit of matter that causes the properties of chemical elements. atoms does not exist independently instead they form ions and molecules which further combined in large numbers to form matter that we see, feel ,and touch<br>Atom is a smallest unit<br>the smallest unit of any matter is know as atom<br>Matter is made up of very small particle called atom<br>Atoms are defined as\xa0“the basic building blocks of matter”. It is the smallest constituent unit of matter that posses the properties of the chemical element. Atoms don’t exist independently, instead, they form ions and molecules which further combine in large numbers to form matter that we see, feel and touch. | |
| 77. |
The energy of the electron in an orbit of hydrogen atom is given by En=-1311.8/n*n |
| Answer» | |
| 78. |
Who discovered " oganesson"i.e.(element no 118) and in which year? ?? |
| Answer» It was discovered by yuri oganessian in 2006 | |
| 79. |
Trike of periodic table for learn |
| Answer» No trick better read | |
| 80. |
Trike of periodic table |
| Answer» Which group . Give me group no . And 1st word of group like H,He,Li,Be,B,C................... | |
| 81. |
Calculate number of atoms in 52gram of helium |
| Answer» Helium atom in 52g=52x6.022*10^23/4<br>1 mole of He contains = 6.022 x 1023 particles = molar mass (4 g)\xa0 | |
| 82. |
If 12g of metal M from give 14.8g of M3N2 on reaction what is the atomic mass of M |
| Answer» | |
| 83. |
Why BeF2 is non polar? |
| Answer» | |
| 84. |
In 9f19 find value of n,l,m and s |
| Answer» N=9L=3M=-l to +L =-3,-2,-1,0,1,2,3S=+-1/2,+-1/2,+-1/2,+-1/2,+-1/2,+-1/2,+-1/2 | |
| 85. |
Adhession |
| Answer» | |
| 86. |
Where is the solution of supplementry material of maths class 11 |
| Answer» | |
| 87. |
Explain max planck\'s quantum theory. |
| Answer» | |
| 88. |
Why hydrogen is kept in left side in periodic table. |
| Answer» It has been left due to its anomalous behavioir | |
| 89. |
Why hydrogen is kept in right side of the above periodic table??. |
| Answer» Wow what a answer | |
| 90. |
Properties of s and p block.. |
| Answer» 1.S block contains elements of group 1 and 2 , 2.it electronic configuration is ns¹ and ns². 3.it have low ionization enthalpies .4.it form ionic bond .5.it have metallic character .1.p block contains elements of group 13 to 18. 2.electronic configuration is ns²np¹ to ns²np⁶. 3.they have highly negative electron gain enthalpies. 4.they have non metallic character. They mostly form covalent bond . | |
| 91. |
Explain why physical and chemical properties are same along the group |
| Answer» Due to same number of valence electrons | |
| 92. |
Explain s-block and p-block. |
| Answer» They are subshell notation | |
| 93. |
Hlo 753 |
| Answer» Who is 753 | |
| 94. |
How heat is path function |
| Answer» | |
| 95. |
How heat is path function? |
| Answer» | |
| 96. |
Explain why Inoization Energy of \'Br\' is more than that of \'B\' (3 marks) |
| Answer» Comparing the first ionization energy (IE1) of beryllium, Be, and boron, B: (a) Be has a higher IE1 because its radius is smaller. (b) B has a higher IE1 because its radius is smaller. (c) Be has a higher IE1 because its s sub-shell is full.<br>Because Br is more stable than b | |
| 97. |
Explain why Inoization Energy of \'Mg\' is more than that of \'Na,Al\' |
| Answer» The valence electron of aluminum is in 3p subshell which is farther than 3s electron from the nucleus. Therefore, it is easy to remove this electron. Thus\xa0Ionization Energy of \'Mg\' is more than that of \'Na,Al\' | |
| 98. |
Write the IUPAC name and symbol for the element having atomic number 105 |
| Answer» UNNILPENTIUM<br>The IUPAC name of element having atomic number 105 is (UNNILPENTIUM) and symbol is UnP. | |
| 99. |
what is atomic models |
| Answer» Good answer Ayush<br>Atomic model is a model of an atom which shows the character of its nature.. | |
| 100. |
Calculate the wave number and frequency of yellow light having wavelength 5000A. |
| Answer» Frequency = c/ Wavelength = (3 x108)/5000 = 0.06x 105Wave number =Frequency/c = (0.06x 105)/(3 x108)= 0.18x 10-3 | |