O, ROH are examples of Lewis bases

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 escort in Port St. Lucie 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

Reasoning (R): This is due to well-known ion impression

Question 7. Assertion(A): NH_{step step step step 3}, 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): Towards the boost in temperatures, brand new ionic equipment from liquids together with develops

Concern 8. Assertlon(A): HCl is actually an enthusiastic good acid if you find yourself HCOOH try a faltering acid. Reason (R): HCI is totally ionised within the water while HCOOH was paritally ionised in the water. (a) Both A and you may Roentgen is completely wrong (b) A good try wrong however, R is right (c) A is correct however, Roentgen try incorrect (d) Each other Good and you may Roentgen try right and you will Roentgen is the proper explanation out-of A beneficial Answer: (d) Both An excellent and you can Roentgen are correct and you will Roentgen is the best cause from Good

Concern nine. Need (R): The dissociation of drinking water is an endothermic reaction. (a) One another A beneficial and R is actually right and you can R ‘s the right cause out of A (b) A great is correct however, R is completely wrong (c) A is completely wrong however, R is correct (d) Both A beneficial and you can Roentgen are incorrect Address: (a) Each other A and R was right and you will R ‘s the right factor away from Good

Concern ten. Assertion(A): Whenever dilution grows, the amount of dissociation of poor electrolyte and grows. Reasoning (R): The amount of dissociation a try inversely proportional so you’re able to attention c. If the dilution grows from the 100 times, this new dissociation expands of the ten times. (a) Each other A beneficial and Roentgen is right and you will R is the best factor from A beneficial (b) Each other An excellent and Roentgen is incorrect (c) A great is correct however, R are wrong (d) A great try wrong but R is correct Answer: (a) One another Good and you will Roentgen are proper and you can Roentgen ‘s the correct need out-of A beneficial

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