CsOH is
  • Strongly basic
  • Weakly basic
  • Slightly acidic
  • Amphoteric.
Alkali metals give a _________________when dissolved in liquid ammonia
  • Deep blue solution
  • Colourless
  • Red colour
  • None of the Above
What are Oxo-Acids?
  • Acid containing Oxygen
  • Acid containing Sulphur
  • Acid containing Carbon
  • None of the Above
In curing cement plasters, water is sprinkled from time to time. This helps in
  • Converting sand into silicic acid
  • Keeping it cool
  • Developing interlocking needle like crystals of hydrated silicates
  • Hydrating sand and gravel mixed with cement.
The substance not likely to contain CaCO
  • Dolomite
  • A marble statue
  • Calcined gypsum
  • Sea shells.
Carnallite is the mineral of:
  • Na
  • Ca
  • Mg
  • None of the Above
The wire of flash bulb is made up of:
  • Mg
  • Ag
  • Cu
  • Ba
The basic strength of which hydroxide is maximum
  • LiOH
  • NaOH
  • Ca (OH)
  • KOH.
Which of the following alkali metals has the least melting point?
  • Na
  • K
  • Rb
  • Cs.
The hydration energy of Mg
  • A1
  • Na
  • Be
  • Mg
Milk of lime reacts with chlorine to form ________, a constituent of bleaching powder.
  • Ca(OCI)
  • Ca(CIO)
  • Ca(CIO)
  • Ca(CIO)
What happens when Calcium carbonate is heated to 1200 K?
  • Carbon Monoxide
  • Calcium hydroxide
  • Calcium Oxide
  • Both (2) and (3) are correct
The salt that is added to table salt to make it flow freely in rainy season is
  • KCl
  • KI
  • Ca(PO)
  • NaPO
Which of the following metals is not manufactured by electrolysis?
  • Na
  • Mg
  • Al
  • Fe
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