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What is used to avoid melting of ice ?

  • Gelatine
  • Butane
  • Methane
  • Any acid

Answer: Option A

Similar Questions :

1. Which one of the following metals does not react with water to produce Hydrogen?

  • Cadmium
  • Lithium
  • Potassium
  • Sodium

Answer: Option A

2. The cyclotron is used to

  • accelerating particles
  • separating elements
  • purifying metals
  • making alloys

Answer: Option A

3. The main chemical constituent of clay is ?

  • aluminium silicate
  • zeolites
  • aluminium borosilicate
  • silicon oxide

Answer: Option A

4. Atomic number of an element gives

  • the number of nucleons in its atom
  • the number of electrons in its atom
  • the weight of the atom of the element
  • the total number of elementary particles in its atom

Answer: Option B

5. Air is a

  • compound
  • colloid
  • element
  • mixture

Answer: Option D

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