Pure HO is :
  • Semi – solid
  • Liquid
  • Solid
  • Gas
The freezing point of heavy water is
  • 0°C
  • 3. 8°C
  • 4°C
  • 1°C
HO used in rocket has the concentration:
  • 50%
  • 90%
  • 70%
  • 30%
Which of the following hydrides are generally nonstochiometric in nature?
  • Ionic Hydrides
  • Molecular Hydrides
  • Interstitial Hydrides
  • All of the Above.
What is the product of the reaction of HO with Cl?
  • O+ HOCl
  • HCl + O
  • HO + HCl
  • HCl + H
Water shows anomalous behavior between
  • 0 to 4°C
  • 0 to 5°C
  • 0 to -4°C
  • 4 to 0°C
Which of the following statements regarding hydrogen peroxide is/ are incorrect?
  • As aerating agent in production of sponge rubber
  • As an antichlor
  • For restoring white colour of blackened lead painting
  • All of the above
Atomic hydrogen is called
  • Protium
  • Deutrium
  • Nascent Hydrogen
  • Tritium
The volume strength of5 NHO
  • 4. 8
  • 5. 2
  • 8. 8
  • 8. 4
Hydrogen has isotopes
  • 2
  • 3
  • 4
  • 5
Pure HO is:
  • Semi – solid
  • Liquid
  • Solid
  • Gas
_________________ on water decolourises HO
  • O
  • Acidic KMnO solution
  • Black Suspension of Lead Sulphide(PbS)
  • None of these.
What is gram equivalent weight of hydrogen peroxide as reductant?
  • 100
  • 125
  • 152
  • None of the Above
Hydrogen is the most abundant element on earth after______.
  • Oxygen
  • Carbon
  • Sulphur
  • None of the Above
Hydrogen is a good __________ agent.
  • Oxidizing
  • Reducing
  • Acidic
  • Basic
The volume of 10 volume HO required to liberate 500 ml of O at S. T. P. is :
  • 25 ml
  • 50 ml
  • 100 ml
  • 125 ml
Hydrogen is most __________ element in the universe.
  • Abundant
  • None
  • Both
  • Consumer
Water gas is mixture of hydrogen H and
  • CO
  • Cl
  • SO
  • None of the above
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