Advertisements
Advertisements
Question
Choose the correct answer.
A 5 per cent sugar solution means that :
Options
5 g of sugar is dissolved in 95 g of water.
5 g of sugar is dissolved in 100 g of water.
Advertisements
Solution
A 5% sugar solution means 5 gm of sugar is dissolved in 95 gm of water. Therefore, the correct option is “a”.
APPEARS IN
RELATED QUESTIONS
Give one difference between atoms and molecules.
Explain why air is used to inflate tyres.
What is the other name for impure substances ? Give two examples of impure substances.
The element which is not common between the compounds called baking soda and soda ash is
A solution contains 5.6 mL of alcohol mixed with 75 mL of water. Calculate the concentration of this solution.
What is the effect of temperature on the solubility of solids in liquids ?
Which one of the following is not a chemical change ?
Name the process by which the various gases of the air are separated.
Name the process you would use to separate a mixture of water and alcohol.
Which technique is used in a washing machine to squeeze out water from wet clothes while drying ?
Describe the method of separating a mixture containing common salt, sand and ammonium chloride.
The material which is added to water during purification process at the water works so as to disinfect it is :
Tincture of iodine is a mixture of two materials X and Y. The material Y has a property that its solid form can be converted directly into vapours on heating by a process called Z.
- What could X be ?
- What could Y be ?
- Name the process Z.
- Which process would you use to recover both the components X and Y from tincture of iodine ?
- Which process can be used to recover only component Y from tincture of iodine ?
Diffentiate between absorption and adsorption.
Atoms or groups of atoms having a charge are called ______.
Celsius scale is a scale of temperature in which zero represents the melting point of ice and 100 represents the boiling point of water.
Gases change to liquid by the process of ______.
Evaporation does form bubbles.
Gas-solid is ______.
Examples of foam are ______.
