Advertisements
Advertisements
प्रश्न
State whether the following statement is true or false. In case a statement is false, write the corrected statement.
Iron pipes coated with zinc do not get rusted easily.
विकल्प
True
False
उत्तर
This statement is True.
Explanation:
The zinc coating on iron pipes prevents rust by acting as a protective barrier.
APPEARS IN
संबंधित प्रश्न
FILL IN THE BLANK
The new substances formed during a chemical reaction are called the ..................
What are chemical reactions?
Choose the correct option from the bracket and explain the statement giving reason.
(Oxidation, displacement, electrolysis, reduction, zinc, copper, double displacement, decomposition)
The conversion of ferrous sulphate to ferric sulphate is ______ reaction.
Name: Two nitrates that do not produce nitrogen dioxide on heating.
Give a chemical test to distinguish between the following gases.
H2 and CO2
Distinguish by dilute sulphuric acid.
Sodium Sulphite and sodium carbonate?
Name the following:
The type of change physical or chemical involved – ‘during respiration in human beings’.
What kind of a change is associated with decaying of a plants?
______ change results in the change of the substance.
Two chemical species X and Y combine together to form a product P which contains both X and Y
\[\ce{X + Y -> P}\]
X and Y cannot be broken down into simpler substances by simple chemical reactions. Which of the following concerning the species X, Y and P are correct?
(i) P is a compound
(ii) X and Y are compounds
(iii) X and Y are elements
(iv) P has a fixed composition
