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The most electropositive elements among the following is :

  • Cs
  • Ca
  • Na
  • Br

Answer: Option A

Similar Questions :

1. Faraday's Law is associated with

  • Reaction of gases
  • Pressure of gases
  • Electrolysis
  • Temperature and pressure

Answer: Option C

2. Mass number of a nucleus is :

  • the sum of the number of protons and neutrons present in the nucleus
  • always more than the atomic weight
  • always less than its atomic number
  • None of above

Answer: Option A

3. Acids taste

  • Sour
  • Sweet
  • May be both
  • None of both

Answer: Option A

4. Petroleum is found in ?

  • Marshy land
  • Metamorphic rocks
  • Igneous rock
  • Sedimentary rocks

Answer: Option D

5. The chemical used as a fixer in photography is ?

  • sodium thiosulphate
  • sodium sulphate
  • borax
  • ammonium sulphate

Answer: Option A

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