Class XI

Difficulty of discharge is lowest in
  1. Chloride ions
  2. Bromide ions
  3. Hydroxide ions
  4. Sulphate ions
Chemical formula of Copper(I) Oxide
  1. Cu2O
  2. Cu(OH)2
  3. CuO3
  4. CuO
Consider reaction: AgNO3 + NaCl → AgCl + NaNO3. state of AgCl will be
  1. Solid
  2. Aqueous
  3. Gas
  4. Liquid
 In Hydrogen (H), number of neutrons is
  1. 5
  2. 1
  3. 2
  4. 0
Particles are arranged in regular rows in
  1. Solids
  2. Liquids
  3. Gases
  4. All of these
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