Advertisements
Advertisements
Question
Assertion: \[\ce{HNO3}\] makes iron passive.
Reason: \[\ce{HNO3}\] forms a protective layer of ferric nitrate on the surface of iron.
Options
Both assertion and reason are correct statements, and reason is the correct explanation of the assertion.
Both assertion and reason are correct statements, but reason is not the correct explanation of the assertion.
Assertion is correct, but reason is wrong statement.
Assertion is wrong but reason is correct statement.
Both assertion and reason are wrong statements.
Advertisements
Solution
Assertion is correct, but reason is wrong statement.
Explanation:
Passivity is attained by formation of a thin film of oxide on iron.
APPEARS IN
RELATED QUESTIONS
Write balanced chemical equations for action of potassium permanganate on: Hydrogen
Bond angle in `PH_(4)^(+)` is higher than that in PH3. Why?
Which of the following is a basic oxide?
(A) SiO2
(B) P4O10
(C) MgO
(D) Al2O3
Write balanced chemical equations for action of potassium permanganate on Warm conc. sulphuric acid
Tendency to show –3 oxidation state decrease from Nitrogn (N) to Bismuth (Bi).
The statement true for \[\ce{N^-_3}\] is ____________.
Nitrogen is relatively inactive element because ____________.
Which of the following oxides is neutral?
The bonds present in N2O5 are ____________.
In which one of the following oxides of nitrogen, one nitrogen atom is not directly linked to oxygen?
A deep brown gas is formed by mixing two colourless gases which are:
Which of the following elements can be involved in pπ – dπ bonding?
On heating lead nitrate forms oxides of nitrogen and lead. The oxides formed are ______.
Name three oxoacids of nitrogen. Write the disproportionation reaction of that oxoacid of nitrogen in which nitrogen is in +3 oxidation state.
Heating white phosphorus with conc. NaOH solution gives mainly ______.
