A) ionic compounds generally formed between the combination of 1st and 2nd group elements with 7th group elements . ex: NaCl, MgF, CaCl2 and so on B) Molecular compounds means vanderwall forces acting btw the molecule these may be crystals or liguids .ex Iodine(I2) is molecular crystal ,Quartz, phosphorous(P4), sulphur(S8) C) hydrocarbons in general contain carbon and hydrogen in some cases hetero atoms may present in the compound . ex CH4 , C2H6, C2H2, C6H5N02, C6H12O6 (glucose) etc D) in general 5th, 6th, 7th groups oxides , oxy acids behaves as acid . ex: N20, N205, F20,HNO3, HClO4, HCl, HF, H2SO4, H2S208 etc along with these metal with lower oxidation state can also act as acidic compound ex: MnO MnO2 MnO3 in the above three oxides oxidation states of metals in orderly +2,+4,+6. so first compound can act as an acid last one is a base Solution A) ionic compounds generally formed between the combination of 1st and 2nd group elements with 7th group elements . ex: NaCl, MgF, CaCl2 and so on B) Molecular compounds means vanderwall forces acting btw the molecule these may be crystals or liguids .ex Iodine(I2) is molecular crystal ,Quartz, phosphorous(P4), sulphur(S8) C) hydrocarbons in general contain carbon and hydrogen in some cases hetero atoms may present in the compound . ex CH4 , C2H6, C2H2, C6H5N02, C6H12O6 (glucose) etc D) in general 5th, 6th, 7th groups oxides , oxy acids behaves as acid . ex: N20, N205, F20,HNO3, HClO4, HCl, HF, H2SO4, H2S208 etc along with these metal with lower oxidation state can also act as acidic compound ex: MnO MnO2 MnO3 in the above three oxides oxidation states of metals in orderly +2,+4,+6. so first compound can act as an acid last one is a base.

1. A) ionic compounds generally formed between the combination of 1st and 2nd
group elements with 7th group elements . ex: NaCl, MgF, CaCl2 and so on B) Molecular
compounds means vanderwall forces acting btw the molecule these may be crystals or liguids .ex
Iodine(I2) is molecular crystal ,Quartz, phosphorous(P4), sulphur(S8) C) hydrocarbons in
general contain carbon and hydrogen in some cases hetero atoms may present in the compound .
ex CH4 , C2H6, C2H2, C6H5N02, C6H12O6 (glucose) etc D) in general 5th, 6th, 7th groups
oxides , oxy acids behaves as acid . ex: N20, N205, F20,HNO3, HClO4, HCl, HF, H2SO4,
H2S208 etc along with these metal with lower oxidation state can also act as acidic compound
ex: MnO MnO2 MnO3 in the above three oxides oxidation states of metals in orderly +2,+4,+6.
so first compound can act as an acid last one is a base
Solution
A) ionic compounds generally formed between the combination of 1st and 2nd
group elements with 7th group elements . ex: NaCl, MgF, CaCl2 and so on B) Molecular
compounds means vanderwall forces acting btw the molecule these may be crystals or liguids .ex
Iodine(I2) is molecular crystal ,Quartz, phosphorous(P4), sulphur(S8) C) hydrocarbons in
general contain carbon and hydrogen in some cases hetero atoms may present in the compound .
ex CH4 , C2H6, C2H2, C6H5N02, C6H12O6 (glucose) etc D) in general 5th, 6th, 7th groups
oxides , oxy acids behaves as acid . ex: N20, N205, F20,HNO3, HClO4, HCl, HF, H2SO4,
H2S208 etc along with these metal with lower oxidation state can also act as acidic compound
ex: MnO MnO2 MnO3 in the above three oxides oxidation states of metals in orderly +2,+4,+6.
so first compound can act as an acid last one is a base