Try segregating the things around you as pure substances or mixtures.
(N/A) pure substance consists of only one type of particles,whereas a mixture consists of two or more different types of particles.
$(a)$ Wood: Mixture (It contains cellulose,lignin,water,and other organic compounds).
$(b)$ Coal: Mixture (It is a complex mixture of carbon,hydrogen,nitrogen,oxygen,and sulfur).
$(c)$ Milk: Mixture (It is a colloid containing water,fats,proteins,lactose,and minerals).
$(d)$ Sugar: Pure substance (It consists only of sucrose molecules,$C_{12}H_{22}O_{11}$).
$(a)$ Wood: Mixture (It contains cellulose,lignin,water,and other organic compounds).
$(b)$ Coal: Mixture (It is a complex mixture of carbon,hydrogen,nitrogen,oxygen,and sulfur).
$(c)$ Milk: Mixture (It is a colloid containing water,fats,proteins,lactose,and minerals).
$(d)$ Sugar: Pure substance (It consists only of sucrose molecules,$C_{12}H_{22}O_{11}$).
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Similar Questions
Which of the following are chemical changes?
$(a)$ Growth of a plant
$(b)$ Rusting of iron
$(c)$ Mixing of iron filings and sand
$(d)$ Cooking of food
$(e)$ Digestion of food
$(f)$ Freezing of water
$(g)$ Burning of a candle
$(a)$ Growth of a plant
$(b)$ Rusting of iron
$(c)$ Mixing of iron filings and sand
$(d)$ Cooking of food
$(e)$ Digestion of food
$(f)$ Freezing of water
$(g)$ Burning of a candle
Easy
View SolutionPragya tested the solubility of four different substances at different temperatures and collected the data as given below (results are given in the following table,as grams of substance dissolved in $100 \,g$ of water to form a saturated solution).
Substance Dissolved $283 \,K$ $293 \,K$ $313 \,K$ $333 \,K$ $353 \,K$ Potassium nitrate $21$ $32$ $62$ $106$ $167$ Sodium chloride $36$ $36$ $36$ $37$ $37$ Potassium chloride $35$ $35$ $40$ $46$ $54$ Ammonium chloride $24$ $37$ $41$ $55$ $66$
$(a)$ Find the solubility of each salt at $293 \,K$. Which salt has the highest solubility at this temperature?
$(b)$ What is the effect of change of temperature on the solubility of a salt?
| Substance Dissolved | $283 \,K$ | $293 \,K$ | $313 \,K$ | $333 \,K$ | $353 \,K$ |
| Potassium nitrate | $21$ | $32$ | $62$ | $106$ | $167$ |
| Sodium chloride | $36$ | $36$ | $36$ | $37$ | $37$ |
| Potassium chloride | $35$ | $35$ | $40$ | $46$ | $54$ |
| Ammonium chloride | $24$ | $37$ | $41$ | $55$ | $66$ |
$(a)$ Find the solubility of each salt at $293 \,K$. Which salt has the highest solubility at this temperature?
$(b)$ What is the effect of change of temperature on the solubility of a salt?
Medium
View SolutionIdentify the solutions among the following mixtures:
$(a)$ Soil
$(b)$ Sea water
$(c)$ Air
$(d)$ Coal
$(e)$ Soda water
$(a)$ Soil
$(b)$ Sea water
$(c)$ Air
$(d)$ Coal
$(e)$ Soda water
Easy
View SolutionExplain the following giving examples:
$(a)$ Saturated solution
$(b)$ Pure substance
$(a)$ Saturated solution
$(b)$ Pure substance
Medium
View SolutionHow would you confirm that a colorless liquid given to you is pure water?
Easy
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