Physics question and answers for July 02, 2023
- Q In compounds of type ECI where E is B P As or Bi The angles CI E CI for different E are in order 2 B P As Bi 3...
- Q 3 865 58 Cal 865 58 Cal 4 0 865 58 Cal The angular momentum of an electron in a Bohr s orbit of He is 3 1652x10 kg m...
- Q The de Broglie wavelength asociated with particle of mass 10 kg moving with a velocity of 10ms is AIIMS b 6 63x10 16 d 6 63x10 29 a 6 63x10...
- Q For sodium atom number of electrons with m 0 will be 1 2 2 7 3 9 4 8
- Q Equal moles of hydrogen and oxygen gases are placed in a container with a pin hole through which both can escape What fraction of the oxygen escapes in the time...
- Q For radial function angular function correct option is are A R r determine size of an orbital B angular function determine energy C R r contains n m only D...
- Q 2 3 2 Suppose the elements X and Y combine to form two compounds XY and X Y When 0 1 mole of XY2 weighs 10 g and 0 05...
- Q The ground state energy in J of hydrogen atom is X The minimum energy in J required to promote an electron from n 1 to n 2 in Het is...
- Q ATOMIC STRUCTURE In hydrogen atom the kinetic energy of electron is 3 4 eV The distance of that electron from the nucleus 2 0 529A 4 21 16A 1 2...
- Q probability density plots of ls and 2s orbitals are given in figure O 1s O 2s The density of dots in a region represents the probability density of finding electrons...
- Q 2 In ion dipole interaction potential energy depends on the distance between interacting particles which of the following relation is correct a U x 2 2 c U x 6...
- Q The valence shell electronic configuration transition elements is 151 1 ns 2 ns np5 3 ns0 2 n 1 d1 10 4 ns n 1 10
- Q The value of spin only magnetic moment for one of the following configuration is 2 84 B M The correct one is a d in strong field ligand b d...
- Q a The schrodinger wave equation for hydrogen atom is 1 2 To r 2ag ao Wherea is Bohr s radius Let the radial node in 2s be at r Then...
- Q Chlorine has isotopes 35 Cl and 37 Cl There are three 35 Cl isotopes for every one isotope of Cl in a sample of chlorine Calculate the atomic mass of...
- Q What is the maximum number of orbitals that can be identified with the following quantum numbers n 3 1 1 m 0 AIPMT 2014 1 01 Bel 2 2 4...
- Q O Calculate wavelength of an electron moving with a velocity of 2 05 107 ms Mass of electron 9 1 10 31 kg
- Q 1 22 10 eV Calculate the energy of photon in kcal mol while wave number of photon is 1 cm Wave Moun number 1cm 1 10 m 10 m 1
- Q JEE Advance 2019 Answer the following by appropriately matching the lists based on the information given in the paragraph Consider the Bohr s model of a one electron atom where...
- Q 11 Ionization energy for hydrogen atom in ergs Joules and eV respectively is Inqining b 13 6 x 218 10 20 21 8 10 3 RECO d 21 8 x...
- Q Electronegativity of the following elements increases in the order 1 C N Si P 3 Si P C N 2 N Si C P 4 P Si N C
- Q 18 The distance between 4th and 3rd Bohr orbits of He is b 1 322 x 10 10 m c 1 851 x 10 10 m a 2 645 x...
- Q In Bohr s stationary orbits a electrons do not move b electrons move emitting radiations c energy of the electron remains constant Yangular momentum of the electron is h 2...
- Q C 1 2 The radius of which of the following orbit is same as that of the first Bohr s orbit of hydrogen atom A He n 2 C Li2...
- Q 23 Select the incorrect graph for velocity of e in an orbit vs Z n a V sad to zibst b 1 n 890 d c 1 sib dom at...
- Q Column I A No of orbitals in the n shell B Max no of electrons in a subshell C No of subshells in n shell Column II P 2 2...
- Q The wavelength of a certain line in the Paschen series in 1094 4 nm of H atom What is the value of high for this line
- Q The number of spherical nodes in 3p orbitals is b three a one c two d zero
- Q column correctly Column I A The radial node of 5s atomic orbital is B The angular node of 3d atomic orbital is C The sum of angular node and radial...
- Q Which general electronic configuration of the element does not represent a non metal metel is in s p 1 ns np 2 ns n 1 d 10 np5 3 ns...
- Q Consider the following six electronic configurations remaining inner orbitals are completely filled and mark the incorrect option 3s 3p 3s 1 4s IV 3p II 1 3d 4s 4p GHI...
- Q Question Is the specie paramagnetic Statement 1 The atomic number of specie is 29 The charge on the specie is 1 Statement 2 A Statements 1 alone is sufficient but...
- Q Naturally occurring thallium consists of two stable isotopes T1203 and T1205 atomic masses 203 0 and 205 0 respectively and has an average atomic mass of 204 4 What is...
- Q 2 8 15 The potential energy of an electron in the hydrogen atom is 6 8 eV Indicate in which excit state the electron is present a first b second...
- Q Given in hydrogenic atom V E K stand for radius potential energy total energy and kinetic energy in nth orbit Find the value of U v x y of column...
- Q 4th 5th and 6th period elements can form complex compounds by coordinate covalency due to the presence of vacant d orbitals
- Q 6 del of the Atom The set of quantum numbers not applicable to an electron fours are nems 1 1 1 1 3 1 0 0 1 2 1 2...
- Q Statement 1 Energy emitted when an electron jump from 5 2 energy level is less than when an electron jump from 2 1 in all H like atom Statement 2...
- Q Question 14 What is the coordination entity formed when excess of aqueous KCN is added to an aqueous solution of copper sulphate Why is it that no precipitate of copper...
- Q 387 An atom has four unpaired electrons The total spin of this atom will be TCO A 1 B 1 5 C 2 Which of the following statement is wrong...
- Q The electronic configuration having maximum difference in first and second ionization energies is 1 1s 2s 2p 3s 2 1s 2s 2p 3s 3p 3 1s 2s 2p 3s 3p...
- Q B The maximum number of orbital s that can be identified with the following quantum numbers is n 2 1 1 m 1 1 2 3 3 2 1 4...
- Q 7 The energy required to remove an electron from th surface of sodium metal is 2 3 eV What is the longe wavelength of radiation with which it can sho...
- Q The ground state energy of hydrogen atom is 13 6 eV Consider an electronic state of He whose energy azi muthal quantum number and magnetic quantum number are 3 4...
- Q Which of the following shapes of SF4 is more stable and why On F S F i F F S F ii F F
- Q 69 The first emission line of hydrogen atomic spectrum in the Balmer series appears at R Rydberg constant 1 3 5R 36 7R 1 cm 144 cm 1 2 3R...
- Q An electron in hydrogen atom falls from sixth excited state to first excited state Total possible lines emitted in the visible region are 2 15 4 21 1 Zero 3...
- Q 30 Calculate the wavelength and energy of radiatio emitted for the electronic transition from infinity to the stationary state of the hydroge atom
- Q 36 The following transition occurs when Lithium atoms are sprayed into hot flame The various steps are numbered for identification 2s 2p 3d Which of these transitions result in emission...
- Q 21 Find the quantum no n corresponding to excited state of He ion if on transition to the gr state that ion emits two photons in succession wavelengths 108 5...
- Q 3 n p d bond 4 Three p d bonds Bond distance in HF is 9 17 x 10 11 m Dipole moment of HF is 6 104 x 10...
- Q Element A has 3 electrons in the outermost orbit and element B has 7 electrons in the outermost orbit The formula of the compound formed between A and B would...
- Q 79 Observe the given boundary surface diagrams of two orbitals I and II and choose the correct option Z II I d22 II dyz b I d II d a...
- Q 7 Which d orbital has different shape from rest of al d orbitals 16 ertainty of b da d day or dys
- Q 73 If the circumference of Bohr s 3rd orbit in th hydrogen atom is 2 54 pm then the de Brogli wavelength of the electron is 1 8 5 10...
- Q Electromagnetic radiation of wavelength 242 nm to ionise the sodium atom Calculat energy of sodium in kJ mol just sufficient the ionisation
- Q nic ns sity me ng OW 16 Which orbital diagram gives an insight to the highest ionization energy 2 N 1s 1s 1 1s 11 2s 2p 4 2s 2p...
- Q 4 The kinetic energy of an electron in H like atom i 6 04 eV Find the area of the third Bohr orbit to which this electron belong Also report...
- Q 1 34 What are the number of protons neutrons and electrons in the following isotopes a H b 4 N 26 c Si 14 d 70 304
- Q 3 Square planar 54 Zero overlap takes place between which of the following if x axis is the inter nuclear axis 1 1s and 2s 3 2p and 2p 2...
- Q What is the energy kJ mol associated with the de excitation of an electron from n 6 ton 2 in He ion a 1 36 10 b 1 36 10...
- Q Molecular shapes of SF4 CF4 XeF4 are a the same with 2 0 and 1 lone pairs of electrons respectively b the same with 1 1 and 1 lone pairs...
- Q Maximum efficiency of cationic hydrolysis will be shown by 1 Al 3 2 Ga 3 3 Tl 1 4 Tl 3
- Q In Bohr s model of H atom what will be shortes wave lenth in paschen series 1 820 8 nm 3 520 8 nm 2 100 8 nm 4 700...
- Q For an atom with atomic number 14 the number of orbits and orbitals in which electrons are present are respectively a 3 6 c 7 3 b 6 3 d...
- Q 10 155 Not considering the electron spin the degeneracy of first excited state n 2 of H atom is a 2 b 3 c 4 d 8
- Q 4 Fluorine is stronger oxidizing agent than chlorine in aqueous solution This can be attributed to the property A heat of dissociation B electron affinity D heat of hydration C...
- Q When the value of azimuthal quantum number is 3 the maximum and minimum values of spin multiplicity are a 1 8 c 6 1 b 8 1 d 7 0
- Q If an electron can have three values of spin quantum numbers 0 and which of 1 1 2 2 the following statement would be correct a Li would have in...
- Q 5 Select the incorrect statement about cathode rays a They travel from cathode to anode b They travel in a straight line in the absence of an external electrical or...
- Q v For each value of n k may have n different values These are 1 2 3 n Thus for the Bohr orbit with n 4 there are four Sommerfeld...
- Q 56 A volume V of air saturated with water vapour exert a pressure P Pressure of saturated vapour is Po If the volume is made V 2 isothermally the final...
- Q In how many elements the last electron will have the following set of quantum numbers n 3 and 1 1 a 2 b 8 c 6 d 10
- Q to the same princip levels have different eccentricity More is the eccentricity of a subshell more is the opportunity of the electrons residing in that subshell to be closer to...
- Q th When an electron of hydrogen atom jumps from n orbit to n th orbit let the frequency of emitted radiation be v According to Bohr s theory hv En...
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