Chapter 5: Dissolving & Soluble - Science For Grade 6(Science ) Questions and Answers

Question 1. When a solution is heated the water evaporates and solute
  1.    evaporates too
  2.    left as residue
  3.    disappear
  4.    condense
Explanation:-
Answer: Option B. -> left as residue
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 2. Talc powder when mix in water it
  1.    never dissolve
  2.    dissolved
  3.    soluble
  4.    mix
Explanation:-
Answer: Option A. -> never dissolve
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 3. Tea leaves can be separated from tea by
  1.    heating
  2.    filtering
  3.    sieving
  4.    reacting
Explanation:-
Answer: Option C. -> sieving
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 4. During filtration of water and talc powder solution the remaining solid on filter paper is called
  1.    residue
  2.    filtrate
  3.    solvent
  4.    solute
Explanation:-
Answer: Option A. -> residue
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 5. Talc powder can be separated from a solution by using
  1.    filter paper in a funnel
  2.    heating
  3.    sieve
  4.    evaporation technique
Explanation:-
Answer: Option A. -> filter paper in a funnel
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 6. Soluble solid cannot be separated from
  1.    solution
  2.    mixture
  3.    both a and b
  4.    heating
Explanation:-
Answer: Option C. -> both a and b
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 7. When a salt completely dissolve in water we call it
  1.    disappear
  2.    dissolved
  3.    insoluble
  4.    salty
Explanation:-
Answer: Option B. -> dissolved
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 8. If the surface area of solid is decrease the dissolving will be
  1.    faster
  2.    slower
  3.    constant
  4.    medium
Explanation:-
Answer: Option B. -> slower
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 9. The solute will dissolve as fast as the
  1.    stirring is done
  2.    you will move from one place to other
  3.    you will observe
  4.    solvent mix
Explanation:-
Answer: Option A. -> stirring is done
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 10. The solution will dissolve faster on increasing
  1.    pressure
  2.    density
  3.    concentration
  4.    temperature
Explanation:-
Answer: Option D. -> temperature
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!