Chemistry
Assertion (A): Nitric acid reacts with NaOH/KOH to form salt and water.
Reason (R): Alkalies react with acids to form salt and water.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Answer
Both A and R are true and R is the correct explanation of A.
Explanation — Nitric acid reacts with alkalies like NaOH/KOH and neutralises it to form salt and water. Hence, the assertion (R) is true.
NaOH + HNO3 ⟶ NaNO3 + 2H2O
Alkalies react with acids to form salt and water. Such type of reactions are called as neutralisation reaction. Hence, the reason (R) is true.
Since, reason (R) depicts the neutralisation reaction that takes place between Nitric acid and NaOH/KOH, it is the correct explanation of assertion (A).
Related Questions
Assertion (A): Catalytic oxidation of Ammonia does not require any external heat in Ostwald process.
Reason (R): Catalytic oxidation of ammonia is an endothermic process.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Assertion (A): The yellow colour of nitric acid is removed by using carbon dioxide gas or dry air.
Reason (R): Carbon dioxide gas or dry air drives away NO2 gas from the warm nitric acid.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Assertion (A): Cold and dilute nitric acid oxidise metals to their nitrates and nitric oxide.
Reason (R): Hot and concentrated nitric acid liberates nitrogen dioxide.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Match the following :
Column I Column II (a) A substance which gives off only oxygen when heated. (i) Zinc nitrate (b) A substance which on heating decomposes into nitrous oxide and steam. (ii) Sodium nitrate (c) A substance which gives off oxygen and nitrogen dioxide when heated. (iii) Lead nitrate (d) A substance which on heating leaves yellow residue. (iv) Ammonium nitrate