Class XI

Due to positive metal ion and mobile valence electron, resulting bond is
  1. Ionic in nature
  2. Covalent in nature
  3. Metallic in nature
  4. Dative covalent bond
Oven Cleaner has a pH of
  1. 0
  2. 1
  3. 2
  4. 14
onsider equation Al2O3 + NaOH + H2O →NaAl(OH)4. Moles of product required to balance reaction would be
  1. 1
  2. 2
  3. 3
  4. 4
 Conversion of solid Ammonium Nitrate (NH4NO3(s)) into aqueous Ammonium Nitrate (NH4NO3(aq)) is an example of
  1. Combustion
  2. Thermal decomposition
  3. Neutralization
  4. Dissolving
One molecule each of Magnesium Chloride (MgCl2), Water (H2O) and Carbon dioxide (CO2) results if reactants are
  1. MgCO3 and HCl
  2. MgCO3 and 2HCl
  3. MgHCO3 and HCl
  4. MgHCO3 and 2HCl
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