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NEET JEE રસાયણ વિજ્ઞાન પ્રશ્ન બેંક

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રસાયણ વિજ્ઞાન

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Class 10 Class 12
જ્યારે બે પરમાણુ જોડાઇને અણુ બનાવે છે ત્યારે .......... 
  • ઊર્જા શોષાય છે.

  • ઊર્જા ઉદભવે છે. 

  • ઊર્જા ઉત્પન્ન ન થાય કે શોષાય નહી. 

  • ઊર્જા શોષાય કે મુક્ત થાય.


નીચેનામાંથી કયા આયનીય સંયોજનની ઉત્પત્તિ કોસેલના અભિગમથી વિરુદ્વ છે ?
  • LiCl

  • KBr

  • FeCl3

  • CaF2


ચાર તત્વો L, Q, P અને R ની ઇલેક્ટ્રોન રચના નીચે મુજબ છે :
bold L bold space bold equals bold space bold 1 bold s to the power of bold 2 bold 2 bold s to the power of bold 2 bold 2 bold p to the power of bold 4 bold comma bold space bold space bold space bold space bold space bold space bold space bold space bold space bold space bold space bold space bold space bold space bold space bold Q bold space bold equals bold space bold 1 bold s to the power of bold 2 bold 2 bold s to the power of bold 2 bold 2 bold p to the power of bold 6 bold 3 bold s to the power of bold 2 bold 3 bold p to the power of bold 5
bold P bold space bold equals bold space bold 1 bold s to the power of bold 2 bold 2 bold s to the power of bold 2 bold 2 bold p to the power of bold 6 bold 3 bold s to the power of bold 1 bold comma bold space bold space bold space bold space bold space bold space bold space bold space bold space bold space bold space bold R bold space bold equals bold space bold 1 bold s to the power of bold 2 bold 2 bold s to the power of bold 2 bold 2 bold p to the power of bold 6 bold 3 bold s to the power of bold 2

તો તેમના દ્વારા બનતા આયનીય સંયોજનોનાં સૂત્રો અનુક્રમે ............

  • straight P subscript 2 straight L comma space RL comma space PQ comma space RQ subscript 2
  • LP comma space straight R subscript 2 straight L comma space straight P subscript 2 straight Q comma space RQ
  • LP comma space RL comma space PQ comma space RQ
  • straight L subscript 2 straight P comma space RL comma space PQ comma space RQ

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straight N subscript 2 space rightwards arrow space straight N subscript 2 અને bold O subscript bold 2 bold space bold rightwards arrow bold space bold O subscript bold 2 બને ત્યારે અનુક્રમે શેમાંથી ઇલેક્ટ્રૉન દૂર થાય છે ?
  • bold left parenthesis bold pi bold asterisk times bold 2 bold p subscript bold y અથવા bold pi bold asterisk times bold 2 bold p subscript bold x bold right parenthesis અને bold left parenthesis bold pi bold asterisk times bold 2 bold p subscript bold y અને bold pi bold asterisk times bold 2 bold p subscript bold x bold right parenthesis
  • bold left parenthesis bold pi bold 2 bold p subscript bold y અથવા bold pi bold asterisk times bold 2 bold p subscript bold x bold right parenthesis અને bold left parenthesis bold pi bold asterisk times bold 2 bold p subscript bold y અને bold pi bold asterisk times bold 2 bold p subscript bold x bold right parenthesis
  • bold left parenthesis bold pi bold asterisk times bold 2 bold p subscript bold y અથવા bold pi bold asterisk times bold 2 bold p subscript bold x bold right parenthesis અને bold left parenthesis bold pi bold 2 bold p subscript bold y અને bold pi bold asterisk times bold 2 bold p subscript bold x bold right parenthesis
  • bold left parenthesis bold sigma bold 2 bold p subscript z) અને bold left parenthesis bold pi bold asterisk times bold 2 bold p subscript bold y અને bold pi bold asterisk times bold 2 bold p subscript bold x bold right parenthesis

D.

bold left parenthesis bold sigma bold 2 bold p subscript z) અને bold left parenthesis bold pi bold asterisk times bold 2 bold p subscript bold y અને bold pi bold asterisk times bold 2 bold p subscript bold x bold right parenthesis

straight N subscript 2 ની ઈલેક્ટ્રોન-રચના
left parenthesis straight sigma subscript 1 straight s end subscript right parenthesis squared space left parenthesis straight sigma to the power of asterisk times subscript 1 straight s end subscript right parenthesis squared space left parenthesis straight sigma subscript 2 straight s end subscript right parenthesis squared space left parenthesis straight sigma to the power of asterisk times subscript 2 straight s end subscript right parenthesis squared space left parenthesis straight pi subscript 2px right parenthesis squared

equals space left parenthesis straight pi subscript 2 py right parenthesis squared space left parenthesis straight sigma subscript 2 pz right parenthesis squared છે. 

straight N subscript 2 to the power of plus ની ઈલેક્ટ્રોન-રચના 

left parenthesis straight sigma subscript 1 straight s end subscript right parenthesis squared space left parenthesis straight sigma to the power of asterisk times subscript 1 straight s end subscript right parenthesis space left parenthesis straight sigma subscript 2 straight s end subscript right parenthesis squared space left parenthesis straight sigma to the power of asterisk times subscript 2 straight s end subscript right parenthesis squared space left parenthesis straight pi subscript 2px right parenthesis space equals space left parenthesis straight pi subscript 2 py right parenthesis squared space left parenthesis straight sigma subscript 2 pz right parenthesis to the power of 1 છે. માટે N2 માં થી straight N subscript 2 to the power of plus બને ત્યારે (62p2) માંથી ઈલેક્ટ્રોન દુર થાય છે.

O2 ની ઈલેક્ટ્રોન-રચના
left parenthesis straight sigma subscript 1 straight s end subscript right parenthesis squared space left parenthesis straight sigma to the power of asterisk times subscript 1 straight s end subscript right parenthesis space left parenthesis straight sigma subscript 2 straight s end subscript right parenthesis squared space left parenthesis straight sigma to the power of asterisk times subscript 2 straight s end subscript right parenthesis squared space left parenthesis straight sigma subscript 2 pz right parenthesis squared space equals space left parenthesis straight pi subscript 2px right parenthesis squared

equals space left parenthesis straight pi subscript 2 py right parenthesis squared space left parenthesis straight pi subscript 2px right parenthesis to the power of 1 space equals space left parenthesis straight pi subscript 2 py right parenthesis to the power of 1

O2+ ની ઈલેક્ટ્રૉન-રચના 
left parenthesis straight sigma subscript 1 straight s end subscript right parenthesis squared space left parenthesis straight sigma to the power of asterisk times subscript 1 straight s end subscript right parenthesis space left parenthesis straight sigma subscript 2 straight s end subscript right parenthesis squared space left parenthesis straight sigma to the power of asterisk times subscript 2 straight s end subscript right parenthesis space left parenthesis straight sigma subscript 2 straight s end subscript right parenthesis squared space left parenthesis straight sigma subscript 2 pz end subscript right parenthesis squared

equals space left parenthesis straight pi subscript 2px end subscript right parenthesis squared space equals space left parenthesis straight pi subscript 2 py end subscript right parenthesis squared space equals space left parenthesis straight pi to the power of asterisk times subscript 2px end subscript right parenthesis to the power of 1 space equals space left parenthesis straight pi to the power of asterisk times subscript 2 py end subscript right parenthesis to the power of 0

માટે O2 માંથી O2+ બને ત્યારે left parenthesis straight pi to the power of asterisk times subscript 2 py end subscript right parenthesis અથવા left parenthesis straight pi to the power of asterisk times subscript 2px end subscript right parenthesis માંથી ઈલેક્ટ્રોન દૂર થાય છે.

straight N subscript 2 ની ઈલેક્ટ્રોન-રચના
left parenthesis straight sigma subscript 1 straight s end subscript right parenthesis squared space left parenthesis straight sigma to the power of asterisk times subscript 1 straight s end subscript right parenthesis squared space left parenthesis straight sigma subscript 2 straight s end subscript right parenthesis squared space left parenthesis straight sigma to the power of asterisk times subscript 2 straight s end subscript right parenthesis squared space left parenthesis straight pi subscript 2px right parenthesis squared

equals space left parenthesis straight pi subscript 2 py right parenthesis squared space left parenthesis straight sigma subscript 2 pz right parenthesis squared છે. 

straight N subscript 2 to the power of plus ની ઈલેક્ટ્રોન-રચના 

left parenthesis straight sigma subscript 1 straight s end subscript right parenthesis squared space left parenthesis straight sigma to the power of asterisk times subscript 1 straight s end subscript right parenthesis space left parenthesis straight sigma subscript 2 straight s end subscript right parenthesis squared space left parenthesis straight sigma to the power of asterisk times subscript 2 straight s end subscript right parenthesis squared space left parenthesis straight pi subscript 2px right parenthesis space equals space left parenthesis straight pi subscript 2 py right parenthesis squared space left parenthesis straight sigma subscript 2 pz right parenthesis to the power of 1 છે. માટે N2 માં થી straight N subscript 2 to the power of plus બને ત્યારે (62p2) માંથી ઈલેક્ટ્રોન દુર થાય છે.

O2 ની ઈલેક્ટ્રોન-રચના
left parenthesis straight sigma subscript 1 straight s end subscript right parenthesis squared space left parenthesis straight sigma to the power of asterisk times subscript 1 straight s end subscript right parenthesis space left parenthesis straight sigma subscript 2 straight s end subscript right parenthesis squared space left parenthesis straight sigma to the power of asterisk times subscript 2 straight s end subscript right parenthesis squared space left parenthesis straight sigma subscript 2 pz right parenthesis squared space equals space left parenthesis straight pi subscript 2px right parenthesis squared

equals space left parenthesis straight pi subscript 2 py right parenthesis squared space left parenthesis straight pi subscript 2px right parenthesis to the power of 1 space equals space left parenthesis straight pi subscript 2 py right parenthesis to the power of 1

O2+ ની ઈલેક્ટ્રૉન-રચના 
left parenthesis straight sigma subscript 1 straight s end subscript right parenthesis squared space left parenthesis straight sigma to the power of asterisk times subscript 1 straight s end subscript right parenthesis space left parenthesis straight sigma subscript 2 straight s end subscript right parenthesis squared space left parenthesis straight sigma to the power of asterisk times subscript 2 straight s end subscript right parenthesis space left parenthesis straight sigma subscript 2 straight s end subscript right parenthesis squared space left parenthesis straight sigma subscript 2 pz end subscript right parenthesis squared

equals space left parenthesis straight pi subscript 2px end subscript right parenthesis squared space equals space left parenthesis straight pi subscript 2 py end subscript right parenthesis squared space equals space left parenthesis straight pi to the power of asterisk times subscript 2px end subscript right parenthesis to the power of 1 space equals space left parenthesis straight pi to the power of asterisk times subscript 2 py end subscript right parenthesis to the power of 0

માટે O2 માંથી O2+ બને ત્યારે left parenthesis straight pi to the power of asterisk times subscript 2 py end subscript right parenthesis અથવા left parenthesis straight pi to the power of asterisk times subscript 2px end subscript right parenthesis માંથી ઈલેક્ટ્રોન દૂર થાય છે.


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રાસાયણિક બંધ એ .......... ની સમજૂતી દર્શાવે છે. 
  • આકર્ષણ 

  • અપાકર્ષણ 

  • (A) અને (B) બંન્ને 

  • નહી આકર્ષણ કે નહી અપાકર્ષણ 


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