Chemistry
Assertion (A): HCl gas is collected by downward delivery.
Reason (R): HCl gas is heavier than air.
- 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— Hydrogen chloride gas is collected by the downward delivery (upward displacement of air). Hence, the assertion (A) is true.
HCl is collected by downward delivery because it is 1.28 times heavier than air. Hence, reason (R) is true and it is the correct explanation of assertion (A).
Related Questions
Assertion (A): HCl is produced by the reaction of hydrogen and chlorine in diffused sunlight.
Reason (R): This reaction is explosive in sunlight.
- 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 Fountain experiment is used to demonstrate the high solubility of HCl gas.
Reason (R): Red litmus solution turns blue in Fountain experiment.
- 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): HCl gas fumes in moist air.
Reason (R): HCl gas is highly soluble.
- 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): HCl gas dissolves in water as well as organic compounds like toluene.
Reason (R): HCl is a polar covalent compound.
- 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.