Lakshya Education MCQs

Question: Ice + ____  Liquid water
Options:
A.Ice
B.Heat
C.Salt
D.Sugar
Answer: Option B
: B

When heat is supplied to ice, it converts to liquid water. The process of convertingsolid into liquid by applying heatis known as melting.

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More Questions on This Topic :

Question 1. Which of these substances are in a liquid state at room temperature?
  1.    Steel
  2.    Cardboard
  3.    Water
  4.    Iron
Answer: Option C
: C

Among the given, water is the substance which is in the liquid state at room temperature.
Question 2. _________ is the physical process through which liquid converts to gas.
  1.    Solidification
  2.    Evaporation
  3.    Melting
  4.    Freezing
Answer: Option B
: B

Evporation is the physical process through which a liquid converts to a gas on absorbing heat. For example, liquid water from oceans, lakes, rivers and other water bodies, undergoes evaporation (changes into gas)by absorbing heat from the Sun.
Question 3. When water is kept below its freezing point it turns into 
  1.    liquid
  2.    ice
  3.    steam
  4.    water vapour
Answer: Option B
: B

When water is below its freezing point, water particles come closer. Their interparticle forces of attraction increases and theyform a rigid structure called ice.
Question 4. A solution in which no more solute can be dissolved in the given amount of solvent is called as a/an ______ solution.
  1.    unsaturated
  2.    hard
  3.    weak
  4.    saturated
Answer: Option D
: D

A saturated solution is a solutionin which no more solute can be dissolvedin solvent withoutheating the solution.
Question 5. __________ is a physical process through which a solid is converted into a liquid.
  1.    Freezing
  2.    Cooling
  3.    Melting
  4.    Condensation
Answer: Option C
: C

Melting is a physical process through which a solid is converted into a liquid. When a solid is heated, the distance betweenthe particles increases, forces of attraction decreases. Eventually, the solid converts to liquid.

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