quiz

Hydrogen Quiz-1

Answer these simple questions correctly and earn coins

Difficulty Level :
10 Question

Popular Questions In Hydrogen Quiz-1

  • HClO4  H2OHClO_4\;H_2O is

  • When NaH reacts with water, the gas liberated is

  • 10 mL of H2O2H_2O_2 solution is treated with Kl and titration of liberated l2l_2, required 10 mL of 1 N hypo. Thus H2O2H_2O_2 is

  • 30 volumes H2O2H_2O_2 means

  • In alkaline medium,H2O2H_2O_2 reacts with Fe3+Fe^{3+} and Mn2+Mn^{2+} respectively to give

  • In transforming 0.01 mole of PbS to PbSO4PbSO_4, the volume of '10 volume' H2O2H_2O_2 required will be

  • Blackened oil painting can be restored into original form by the action of

  • In the Calgon process of softening of water, which of the following is used?

  • The reagent commonly used to determine hardness of water quantitatively is

  • The hardness of water sample containing 0.002 mole of magnesium sulphate dissolved in a litre of water is expressed as :