Class XI

Electrolyte liquid may include
  1. Solutions
  2. Molten solids
  3. Gases
  4. Both A and B
All are soluble but
  1. Chlorides
  2. Sulphates
  3. Sodium salts
  4. Majority of carbonates
Consider equation ZnO + NaOH + H2O → Na2Zn(OH)4. Moles of NaOH required to balance equation would be
  1. 1
  2. 2
  3. 3
  4. 4
Metal core in power cable is normally made up of
  1. Steel
  2. Aluminum
  3. Nickel
  4. Both A and B
Replaceable hydrogen atoms in H2SO4 areReplaceable hydrogen atoms in H2SO4 are
  1. 1
  2. 2
  3. 3
  4. 4
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