O, ROH are all examples of Lewis angles

Question 6. Assertion(A): SiF_cuatro can act as Lewis acid. Reason (R): In SiF₄, the central atom can expand its octet due to the availability of empty d – orbitais and can accept a pair of electrons. (a) Both A and R are correct and R is the correct explanation of A (b) Both A and R are wrong (c) A is correct but R is wrong (d) A is wrong but R is correct Answer: (a) Both A and R are correct and R is the correct explanation of A

Reason (R): It is because preferred ion perception

Question 7. Assertion(A): NH_{step three}, H₂ Reason (R): Molecules with one or more lone pairs of electrons act as Lewis bases. (a) Both A and R are wrong (b) A is correct and R is the correct explanation of A. (c) A is wrong but R is correct. (d) A is correct but R is wrong Answer: (b) A is correct and R is the correct explanation of A.

Assertion(A): To your escalation in heat, the new ionic equipment off liquid along with increases

Matter 8. Assertlon(A): HCl is actually an enthusiastic solid acid if you’re HCOOH is a faltering acid. Need (R): HCI is totally ionised within the water while HCOOH try paritally ionised in water. (a) One another A and you will R is wrong (b) An effective try completely wrong but Roentgen is correct (c) A good is right but R try wrong (d) One another Good and you can Roentgen was proper and Roentgen is the right explanation out-of A beneficial Address: (d) Each other A beneficial and you may Roentgen is right and you can R ‘s the proper factor away from A great

Question 9. Reasoning (R): The brand new dissociation away from drinking water is actually an endothermic impulse. (a) Both An effective and you may Roentgen try right and you will Roentgen ‘s the best need out of A (b) A good is correct however, R is actually completely wrong (c) A great try incorrect however, Roentgen is right (d) Both A beneficial and you can R was incorrect Address: (a) Both An excellent and you will R is right and you may Roentgen ‘s the proper explanation off Good

Question 10. Assertion(A): Whenever dilution grows, the level of dissociation out of weak electrolyte along with expands. Cause (R): The level of dissociation an effective is inversely proportional to help you amount c. In the event the dilution develops from the 100 times, the new dissociation develops by the 10 minutes. (a) Both A beneficial and you may R is best and you can R is the right cause out-of A good (b) Both An effective and you can R was completely wrong (c) A beneficial is right however, Roentgen was incorrect (d) An effective is completely wrong however, Roentgen is escort sites McKinney correct Respond to: (a) Each other An excellent and you will R are right and you may Roentgen ‘s the correct explanation away from An excellent

Question 11. Assertion(A): The addition of sodium acetate to acetic acid solution leads to the suppression in the dissociation of acetic acid. i.e., CH₃COOH and CH₃COONa both contains CH₃COO – ion as common. (a) Both A and R are correct and R is the correct explanation of A (b) BothA and R are wrong (c) A is correct but R is wrong (d) A is wrong but R is correct Answer: (a) Both A and R are correct and R is the correct explanation of A

Question 12. Assertion(A): The solution of NH₄CI has pH value less than 7. Reason (R): The salt of weak base (NH₄OH) and strong acid (HCl) is acidic in nature, when dissolved in water. So pH value is less than 7. (a) Both A and R are correct and R is the correct explanation of A (b) Both A and R are wrong (c) A is correct but R is wrong (d) A is wrong but R is correct Answer: (a) Both A and R are correct and R is the correct explanation of A