Assertion : `HNO_3` makes iron passive. Reason : `HNO_3` forms a protective layer of ferric nitrate on the surface of iron.

These question consist of two statements each, printed as Assertion and Reason. While answering these questions you are required to choose any one of the following responses If both Assertion and Reason are true and Reason is a correct explanation of Assertion If both Assertion and Reason is a not a correct explanation of Assertion If Assertion is true but Reason is false If both Assertion and Reason are false Assertion: BaCO_3 ​ is more soluble in HNO_3 ​ than in plain water. Reason: Carbonate is a weak base and reacts with the H^+ from the strong acid, causing the barium salt to dissociate.

The questions given below consist of an Assertion and Reason. Assertion : The complex [Co(NH_3)_3Cl_3] does not give precipitate with silver nitrate solution. Reason : The given complex is non-ionizable.

The brown gas formed when HNO_3 is reduced by metals is

Give reasons : Cone. HNO_(3) can be transported in aluminium container

Direction. In the following questions, a statement of assertion is followed by a statement of reason. While answering a question, you are required to choose the correct are out of the given four responses and mark it as (A)If both assertion and reason are true and reason is the correct explanation of the assertion, (B) if both assertion and reason are true but reason is not correct explanation of the assertion. (C) if assertion is true, but reason if false, (D) if both assertion and reason are false Assertion : Soft iron is preferred for making electromagnets. Reason : Owing to low value of retentivitiy, the residual magnetism left in the soft iron is very small, when the current is switched off.

Direction. In the follwing questions, a statement of assertion is followed by a statement of reason. While answering a question, you are required to choose the correct are out of the given four responses and mark it as (A). If both assertion and reason are true and reason is the correct explanation of the assertion, (B) if both assertion and reason are true but reason is not correct explanation of the assertion. (C) if asssertion is true, but reason if false, (D) if both assertion and reason are false Assertion : Steel is preferred for making permanent magnets, althoguh soft iron can be easily magnetised. rEason : It is because, coercivity for steel is quite large as compared to soft iron.

Why does iron become passive when dipped in conc. HNO_3 ?

When silver is heated with conc. HNO_3 it produces

These questions consist of two statements each,printed as Assertion and Reason.While asnwering these questions you are required to chose any one of the following four responses. If both Assertion and Reason are true and Reason in correct explanation of Assertion. If both assertion and Reason are true but reason is not correct explanation of Assertion. If Assertion is true but Reason is false. If both Assertion and Reason are false. Assertion:Minerals do not form a component of biologically active compounds Reason:Some persons suffer from anaemia due to iron deficiency.