Assertion: Solutions of compounds like alcohol and glucose do not show acidic character.
Reason: They do not show acidic character because they do not dissociate into ions.
Both assertion and reason are correct and reason is the correct explanation of assertion.
Both assertion and reason are correct but reason is not the correct explanation of assertion.
Assertion is true, but reason is false.
Assertion is false, but reason is true.
(1)
Solutions of compounds like alcohol and glucose do not show acidic character because, unlike acids such as HCl which dissociates into and ions, these solutions do not dissociate into ions.
Assertion: Dry HCl gas does not change the colour of the dry litmus paper.
Reason: It is because dry HCl does not contain the ions.
Both assertion and reason are correct and reason is the correct explanation of assertion.
Both assertion and reason are correct but reason is not the correct explanation of assertion.
Assertion is true, but reason is false.
Assertion is false, but reason is true
(1)
Colour of the litmus paper is changed by the hydrogen ions. Dry HCl gas does not contain ions. Acids give hydrogen ions only in the presence of aqueous solution. In case of dry litmus paper and dry HCl, water is not present. Therefore, the colour of the litmus paper does not change.
Assertion: An aqueous solution of acid conducts electricity.
Reason: It is because in the solution it dissociates into ions.
Both assertion and reason are correct and reason is the correct explanation of assertion.
Both assertion and reason are correct but reason is not the correct explanation of assertion.
Assertion is true, but reason is false.
Assertion is false, but reason is true
(1)
Acids dissociate in their aqueous solutions to form ions. These ions are responsible for conduction of electricity.
Assertion: Ammonia is acidic in nature.
Reason: Ammonia dissolves in water and forms
Both assertion and reason are correct and reason is the correct explanation of assertion.
Both assertion and reason are correct but reason is not the correct explanation of assertion.
Assertion is true, but reason is false.
Assertion is false, but reason is true.
(4)
Ammonia is a weak base as it has one pair of electrons through which it can accept a proton. Thus, assertion is false, but reason is true.
Assertion: Tap water conducts electricity but distilled water does not conduct electricity.
Reason: Tap water conducts electricity as it contains ions whereas distilled water does not contain ions.
Both assertion and reason are correct and reason is the correct explanation of assertion.
Both assertion and reason are correct but reason is not the correct explanation of assertion.
Assertion is true, but reason is false.
Assertion is false, but reason is true
(1)
Tap water conducts electricity as it contains ions whereas distilled water does not contain ions.
Assertion: Curd and sour substances should not be stored in copper vessels.
Reason: Curd and other sour substances should not be kept in brass and copper vessels as they contain acids.
Both assertion and reason are correct and reason is the correct explanation of assertion.
Both assertion and reason are correct but reason is not the correct explanation of assertion.
Assertion is true, but reason is false.
Assertion is false, but reason is true
(1)
Curd and other sour substances should not be kept in brass and copper vessels as they contain acids. When these substances are kept in brass and copper vessels, the metal reacts with the acid to liberate hydrogen gas and harmful products are obtained due to which the food gets spoiled.
Assertion: Most of the metals do not give hydrogen while reacting with nitric acid.
Reason: Nitric acid is a weak oxidising agent.
Both assertion and reason are correct and reason is the correct explanation of assertion.
Both assertion and reason are correct but reason is not the correct explanation of assertion.
Assertion is true, but reason is false.
Assertion is false, but reason is true
(3)
Hydrogen gas is not evolved when a metal reacts with nitric acid. It is because HNO? is a strong oxidising agent. It oxidises the H? produced to water and itself gets reduced to any of the nitrogen oxides
Assertion: Plaster of Paris should be stored in dry place.
Reason: To prevent its reaction with moisture.
Both assertion and reason are correct and reason is the correct explanation of assertion.
Both assertion and reason are correct but reason is not the correct explanation of assertion.
Assertion is true, but reason is false.
Assertion is false, but reason is true
(1)
Plaster of Paris is stored in a dry place because in the presence of water or moisture, it changes to a hard solid mass called gypsum
Assertion: The aqueous solutions of glucose and alcohol do not show acidic character.
Reason: Aqueous solution of glucose and alcohol do not give ions.
Both assertion and reason are correct and reason is the correct explanation of assertion.
Both assertion and reason are correct but reason is not the correct explanation of assertion.
Assertion is true, but reason is false.
Assertion is false, but reason is true
(1)
The aqueous solution of glucose and alcohol do not dissociate to form H? ions in the solution, thus they do not show the acidic character.
