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.
| 1901. |
What is the general configuration of s-block elements |
| Answer» Alll the vallence electron are in s subshell<br>ns¹-²<br>ns¹/ns² | |
| 1902. |
What is an electrochemical series? How does it predict the feasibility of a certain redox reaction? |
| Answer» | |
| 1903. |
Three diffrence between U and H |
| Answer» In thermodynamics, the internal energy of a system is the energy contained within the system, excluding the kinetic energy and potential energy.Change in internal energy is denoted by ΔU.Enthalpy is the amount of heat content used or released in a system at constant pressure.Change in enthalpy is denoted by ΔH.1)The heat given off or absorbed when a reaction is run at constant volume is equal to the change in the internal energy of the system.2. The heat given off or absorbed when a reaction is run at constant pressure is equal to the change in the enthalpy of the system. | |
| 1904. |
What are the dual characteristics of electromagnetic radiation |
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| 1905. |
Tocotrinol is a ? |
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| 1906. |
Why electronic wave theory falied in case photoelertic effect? |
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| 1907. |
From where to get new added chapter Solids States in chemistry |
| Answer» From 12th class book of chemistry or suplymentry book of abc | |
| 1908. |
Why are bohr\'s orbits called stationary states |
| Answer» Bcz..These orbitals have fixed energy and fixed path | |
| 1909. |
Solution of session ending exam 2015-16 |
| Answer» Yes ! Its urgent<br>Kya | |
| 1910. |
Which element florine and chlorine is more electronegative and why |
| Answer» Flourine because of it\'s smaller size. As it is much smaller in size it can attract an shared pair of electron more easily.<br>Flourine | |
| 1911. |
What do u mean by electromagnetic wave??? |
| Answer» | |
| 1912. |
Leiws dot structure |
| Answer» Symbol of an element showing valence electron<br>. | |
| 1913. |
Why bf3(boron tri fluride)forms covalent bond and not ionic bond |
| Answer» ionic bond is formed between metal and non metal | |
| 1914. |
Draw orbital overlap diagram H30+ |
| Answer» | |
| 1915. |
Why atomic mass is represented by A |
| Answer» Yes bro<br>this is stupid question | |
| 1916. |
Why atomic number is represented dy Z |
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| 1917. |
Conformation of ethane is not possible to isolate |
| Answer» | |
| 1918. |
XeF2 has zero dipole moment.why |
| Answer» Because 2 flourine atoms are attached to xe in linear arrangement therefore opposite and equal dipoles will cancel each other.. | |
| 1919. |
Which is the chapter in which andrews experiment is given |
| Answer» | |
| 1920. |
What is resonace ? Explain with the help of examples . |
| Answer» If a molecule is represented in more then one lewis structure in none of them are sufficent to explain the the property of compond and then this is known as resoultingstructure and this phenomena is known as resonance. Eggg...O3 | |
| 1921. |
give the values of the quantum numbers n, l, m for the electron with highest engerg in sodium atom |
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| 1922. |
Is CaF2 linear or bent or neither of the two ? justify. |
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| 1923. |
What is the chemical formula of sodium chloride |
| Answer» NaCl<br>Nacl<br>Nacl is the formula of sodium chloride.<br>NaCl | |
| 1924. |
Why F- subshell has poorest shielding effect???? |
| Answer» Bcz it spread in a vry large area | |
| 1925. |
Why second ionization enthalpy is larger than the first ionization enthalpy |
| Answer» The reason the second ionization energy is higher than the first relates to the attraction between the electrons and the nucleus. When one electron is removed from an atom, the neutral atom becomes positive. When one attempts to remove a second electron from a positive ion, there is more attraction between the electrons and the nucleus due to the extra proton. Thus, the second electron is harder to remove and the ionization requires more energy.Hope it helps you. | |
| 1926. |
Short notes on impurity defect |
| Answer» | |
| 1927. |
Why is chlorine more electronegative than fluorine |
| Answer» Atomic size of fluorine is very small and it has 7 electrons in its last shell these electron becomes close to each other and increase electron density around the nucleus as a result the incoming electron feels some repulsion by them that is why electronegative of chlorine is more than that of fluorine<br>No,flourine is more electronegative.it is most electronegative element in the modern periodic table | |
| 1928. |
What is vsepr theory |
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| 1929. |
What is the IUPAC name of C- |
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| 1930. |
The density of two molal aqueous solution of naoh is 1.10g/l calculate the molarity |
| Answer» | |
| 1931. |
Why only some elements have same oxidation number every time |
| Answer» | |
| 1932. |
Suggest me any reference book... |
| Answer» so i have no idea about it<br>sorry sis i have not opted bio<br>For bio??<br>for physics sl arora.for chemistry modern abc.for maths rd sharma<br>Arihant | |
| 1933. |
why NH3 differ from NF3 |
| Answer» NF3 has zero dipole moment but NH3 has fixed dipole moment | |
| 1934. |
Bohr model of an atom |
| Answer» | |
| 1935. |
Which questions come in exam |
| Answer» every imp. questions comes in exam | |
| 1936. |
What is the marking scheme for term 1 class 11 chapterwise |
| Answer» Sorry I don\'t know | |
| 1937. |
Can someone plz Tell me some important topics to pass cbse board exam of class 12th? |
| Answer» Apart from above comment one thing that i must tell u thatDownload the ROBOMATE app and listen all the important lectures by professors of chemistry and any other subject that u want .Since all the topics are taught thouroughly....i hope it will help u<br>The very first thing that u should do is hardworkSecondly listen ur teachers lectures carefully and note it downThirdly recall all that you have readNote down ur problem and ask<br>Tum hame 11th ka bata do aur jab hmmm 12th me chale jaynge to tumko bata denge hisab barabar?????????<br>Study hard all the topics | |
| 1938. |
Electronic configuration for Cu+ |
| Answer» argon^18 3d10 4s1<br>1s2 2s2 2p6 3s2 3p6 4s2 3d10<br>1s2 2s2 2p6 3s2 3p6 3d10<br>Argon (noble gas)3d8,4s1 | |
| 1939. |
In 34.2g of sugar calculate the number of atom os each element |
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| 1940. |
What\'s difference between bond & force |
| Answer» Force is push or pull that can change the position , state,diraction and size of object ....but an bond is a convertion between two or more diff. atom of diff. particle<br>force is a push or pull on a body and bond is the relation between two or more atoms | |
| 1941. |
Arange them in ascending order by there atomic radii Al,c,si |
| Answer» Al Si C | |
| 1942. |
Can you find the structography of xeo3 |
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| 1943. |
What is isolated gas |
| Answer» Which cannot be transfered to other state or temperature Or in other words Isolated means insulated | |
| 1944. |
Solid state class 11 me ayegaa kya |
| Answer» ayegaa nahi aa chuka h<br>Yes | |
| 1945. |
define first law of thermodynamics |
| Answer» Law of conservation of energy. When a certain amount of heat energy (dQ) disappeas,an equivalent amount of energy in some other. When (dU) is small increase in internal energy and (dW) is small amount of external work done by the system in expansion. dQ=dU+dW<br>The heat energy given to the system is equal to the sum of the increase in the internal energy and the work done by the system .I.e , dQ= du + dw<br>This law states that energy can neither be created nor destroyed can be transformed to one form to other. ORThe sum total of the energy of the universe remains constant<br>no total energy of universe does not constant it increases continuously<br>plz tell me is this ans. is true or not ;this law states that the total energy of the universe always remains constant | |
| 1946. |
Why we need a balanced chemical reaction |
| Answer» To prove the law of conservation of Mass as given by Lavoisier<br>because if an equation is not balanced then the no.of mole of the element is not equal on the product side and as well as on the reactant side so the unbalanced equation is proved to be wrong | |
| 1947. |
What is the pressure of HCl at 40 degree Celsius if it\'s density is 8 kg/ m cube. Take r= 8.341. |
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| 1948. |
What is the pressure of HCl gas at 40 degree Celsius if it\'s density is 8 kg \\ m cube |
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| 1949. |
Can gas directly changes into solid or not, if yes than why and if not than why??? |
| Answer» | |
| 1950. |
Difference between Atomic orbital and Molecular orbital |
| Answer» Difference between atomic orbital and molecular orbital are as follows.Atomic orbital:\tA region where there occurs a high probability of finding an electron in an atom is known as atomic orbital.\tAn electron cloud leads to the formation of atomic orbitals around the atom.\tSingle nucleus affects the electron cloud.\tAtomic orbitals are monocentric because they are found around a single nucleus.Molecular orbital:\tA region where there is highest probability of finding an electron in a molecule is known as molecular orbital.\tWhen fusion of atomic orbitals that have nearly same energy take place then it tends to the formation of molecular orbitals.\tIn molecular orbitals, two or more nuclei affect the electron cloud.\tSince, molecular orbitals are found around different nuclei. Hence, they are polycentric. | |