Advertisements
Advertisements
Question
Name the property which enables metals to be drawn into wires.
Advertisements
Solution
Ductility is the property of metals that enables them to be drawn into wires.
APPEARS IN
RELATED QUESTIONS
Which of the following materials fall in the category of a “pure substance”?
- Ice
- Milk
- Iron
- Hydrochloric Acid
- Calcium oxide
- Mercury
- Brick
- Wood
- Air
Classify the following into elements, compounds and mixtures:
- Sodium
- Soil
- Sugar solution
- Silver
- Calcium carbonate
- Tin
- Silicon
- Coal
- Air
- Soap
- Methane
- Carbon dioxide
- Blood
Out of solids, liquids and gases, which one has :
- maximum movement of particles ?
- maximum interparticle attractions ?
- minimum spaces between particles ?
Explain why air is used to inflate tyres.
Name a liquid which can be classified as a pure substance and conducts electricity.
Name the property which allows metals to be hammered into thin sheets.
What are the three groups into which all the elements can be divided ? Name two elements belonging to each group.
In the following set of substances, one item does not belong to the set. Select this item and explain why it does not belong to the set :
Hydrogen, Oxygen, Steam, Chlorine
Which of the two will scatter light : soap solution or sugar solution ? Why ?
State whether colloidal solutions are homogeneous or heterogeneous.
Define Sol and give one example.
Which of the following are chemical changes and which physical ? Give reason.
- a glass bottle breaking
- coal burning in air
- making a cake
- wool being knitted into a sweater
Differentiate between a saturated and an unsaturated solution. How will you test whether a given solution is saturated or not ?
Name the process which can be used to recover salt from an aqueous salt solution.
What difference in the properties of oil and water enable their separation by a separating funnel ?
How is the impurity of iron present in several substances removed in industries ?
How is cream separated from milk ?
The liquid air has three components X, Y and Z whose boiling points are : –186°C, –183°C and –196°C,
respectively. When liquid air is fed into a tall fractional distillation column from near its bottom and warmed
up slowly :
(a) Which component will be collected from near the bottom of the fraction distillation column ? Why ?
(b) Which component will be collected from the top part of the fractional distillation column ? Why ?
(c) Which component will be collected from the middle part of the fractional distillation column ? Why ?
(d) What could the component X, Y and Z be ?
Solids possess very high kinetic energy.
Solids do not flow.
