KnowledgeBoat Logo

Science

A student, took four metals P, Q, R and S and carried out different experiments to study the properties of metals. Some of the observations were :

  • All metals could not be cut with a knife except metal R.
  • Metal P combined with oxygen to form an oxide M2O3 which reacted with both acids and bases.
  • Reaction with water.
    • P – Did not react either with cold or hot water but reacted with steam
    • Q – Reacted with hot water and the metal started floating
    • R – Reacted violently with cold water.
    • S – Did not react with water at all

Based on the above observations answer the following:

The increasing order of the reactivity of the four metals is;

  1. P < Q < R < S
  2. S < R < Q < P
  3. S < P < Q < R
  4. P < R < Q < S

Metals & Non-Metals

1 Like

Answer

S < P < Q < R

Reason — Based on the reactions of the above given metals with water, the increasing order of reactivity is S < P < Q < R .

Answered By

1 Like


Related Questions