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Chemical used in photography is

  • sodium sulphate
  • sodium sulphite
  • sodium thiosulphate
  • sodium oxalate

Answer: Option C

Similar Questions :

1. The nuclear particles which are assumed to hold the nucleons together are ?

  • positrons
  • neutrons
  • electrons
  • mesons

Answer: Option D

2. Identify the wrong statement in the following

  • Atomic radius of the elements increases as one moves down the first group of the periodic table
  • Atomic radius of the elements decreases as one moves across from left to right in the 2nd period of the
  • Amongst isoelectronic species, smaller the positive charge on the cation, smaller is the ionic radius
  • Amongst isoelectronic species, greater the negative charge on the anion, larger is the ionic radius

Answer: Option C

3. Human bone does not contain

  • calcium
  • carbon
  • oxygen
  • phosphorous

Answer: Option C

Explanation:

Human bone contains calcium, carbon, phosphorous.

4. Water drops are spherical because of ?

  • viscosity
  • density
  • polarity
  • surface tension

Answer: Option D

5. What is the chemical name of table salt ?

  • Sodium nitrate
  • Ammonium chloride
  • Sodium chloride
  • Calcium chloride

Answer: Option C

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