Advertisements
Advertisements
Question
Give reason for the following:
Rusting reduces the structural strength of iron.
Solution
Rusting corrodes iron and hence reduces its structural strength.
APPEARS IN
RELATED QUESTIONS
Give an example of a metal which can be easily cut with a knife.
Name the gas that is produced in the given case:
The reaction of ethanol and sodium.
The electronic configurations of three elements X, Y and Z are:
X : 2 | Y : 2, 8, 7 | Z : 2, 8, 2 |
Which of the following is correct regarding these elements?
(a) X is a metal
(b) Y is a metal
(c) Z is a non-metal
(d) Y is a non-metal and Z is a metal
Name a non-metal that a good conductor of heat and electricity
Name a non-metal that is used to kill germs in water
Fill in the blank
A chemical compound that makes up the striking heads of match sticks is .........................
Tick (√) the most appropriate answer.
A metal which is a poor conductor of electricity is:
Name one metal which is a liquid at room temperature
Name a metal which can be cut with a knife :
State two important uses of following non-metal
Uses of oxygen
Name:
a non-malleable metal
Name two metals which react with cold water.
Write scientific reason.
The stainless steel vessels in Kitchen have copper coating on the bottom.
Name the following:
An Alloy of copper and Zinc.
Give two examples of alloy.
Which of the following non-metal is lustrous?
Which non-metal is essential for our life and all living beings inhale it during breathing?
Reason out
Sulphur is used in the vulcanization of rubber.