Class XI

Number of acid salt formed by HCl is
  1. 0
  2. 1
  3. 2
  4. 3
Consider equation Al2O3 + NaOH + H2O →NaAl(OH)4. Moles of H2O required to balance equation would be
  1. 1
  2. 2
  3. 3
  4. 4
In a dry cell, leaking occurs because
  1. Zinc electrode has dissolved away
  2. Carbon electrode has dissolved away
  3. Magnese oxide has been used up
  4. Polarization cannot more be prevented at carbon electrode
Sulfurous Acid (H2SO3) is
  1. Strong electrolyte
  2. Non-electrolyte
  3. Weak electrolyte
  4. White in color
Plumbum is Latin name of
  1. Potassium
  2. Lead
  3. Copper
  4. Valium
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