Advertisements
Advertisements
Question
Name the following:
or
With reference to the physical properties of metals and non-metals, state the following exception.
A metal which is liquid at room temperature.
Solution
Mercury
APPEARS IN
RELATED QUESTIONS
Give an example of a metal which is the best conductor of heat.
Choose the correct answer from the options given below:
Anhydrous iron(III) chloride is prepared by:
1) direct combination
2) simple displacement
3) decomposition
4) neutralization
For the electro-refining of copper: What is the cathode made up of?
Name two metals which react violently with cold water. Write any three observations you would make when such a metal is dropped into water.
What are metals? Name five metals.
Name a metal which is so soft that it can be cut with a knife.
Define non-metals. Give five examples of non-metals.
Name a non-metal having lustre (shining surface).
Name a metal used in making electric cables
Name the metals present in the following alloys
Stainless steel
Fill in the blank
A chemical compound that makes up the striking heads of match sticks is .........................
Write ‘True’ or ‘False’ in front of following statement.
Stainless steel is used for making power transmission wires.
Tick (√) the most appropriate answer.
Copper metal is used in :
State any five physical properties of a non-metal.
What are metalloids: Give examples.
Name:
a metal which is a bad conductor of heat and electricity
Select from the following ist:
`Fe_2O_3, , NO, PbO, Mn_2O_7`
Amphoteric oxide …………
Name two metals which react with cold water.
Give the balanced reactions for the following:
Red hot iron reacts with steam
Distinguish between a mineral and an ore.
Name a non-metal which can form a positive ion.
A metallic oxide which cannot be reduced by normal reducing agents:
With reference to the physical properties of metals and non-metals, state the following exception.
a non-metal which sublimes and is non-lustrous
_______ is good conductor of heat but bad conductor of electricity.
Brass : Aluminium and zinc : : Bronze : ______
Write the name.
Nonmetal which is a good conductors of electricity.
Which non-metal is essential for our life and all living beings?
Generally, non-metals are not lustrous. Which of the following non-metal is lustrous?