Solve
Guides
0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Standard X
Chemistry
Question

Assertion :Corrosion of iron is commonly known as rusting. Reason: Corrosion of iron occurs in presence of water and air.
  1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
  2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
  3. Assertion is correct but Reason is incorrect.
  4. Both Assertion and Reason are incorrect.

A
Assertion is correct but Reason is incorrect.
B
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
C
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
D
Both Assertion and Reason are incorrect.
Open in App
Solution
Verified by Toppr

Iron when exposed to moist air for a long time acquires a coating of a brown flaky substance called rust. Thus, both statement and reason are true but independent of each other.
Hence, option B is correct.

Was this answer helpful?
1
Similar Questions
Q1

Assertion – The non-fusible impurities present in iron ore are removed by CaCO3 .

Reason: CaCO3 which decomposes into CaO and CO2. The CaO formed reacts with SiO2 to remove silica


View Solution
Q2
Assertion: The impurities such as SiO2 present in iron ore is removed by CaCO3.

Reason: CaO formed by decomposition of CaCO3 reacts with SiO2 to form slag.
View Solution
Q3
Assertion: The compressibility factor for H2​ and He is (1+PbRT)
Reason: The compressibility factor for H2​ and He can be derived from Van der Waal's equation.
View Solution
Q4

Assertion (A) Order of the reaction can be zero or fractional.

Reason (R) We cannot determine order from balanced chemical equation.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

View Solution
Q5

Assertion (A) Rate constant determined from Arrhenius equation are fairly accurate for simple as well as complex molecules.

Reason (R) Reactant molecules undergo chemical change irrespective of their orientation during collision.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

View Solution