Class XI

Formula of Calcium Hydrogen Carbonate indicates
  1. That charge on Ca is +2
  2. Charge on HCO3 is −1
  3. That for each molecule of calcium hydrogen carbonate, one ion of Ca and two ions of hydrogen carbona
  4. All of these
Unit for volumes does not include
  1. Ccm
  2. Cdm
  3. Liters
  4. Tones
In Universal indicators, weak alkalis are indicated through a pH of
  1. 4 to 7
  2. 8 to 10
  3. 10 to 14
  4. 7 to 14
In electrolysis of aqueous Copper Sulfate CuSO4, at cathode
  1. Pink deposit of copper metal is deposited
  2. Hydrogen gas is given off
  3. Hydrogen ions are easier to discharge than copper ions
  4. Cu+2 forms crystals
Metal that burns even more brightly than Magnesium (Mg) is
  1. Zinc
  2. Mercury
  3. Zirconium
  4. Diamond
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