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

Reasoning (R): For the reason that common ion feeling

Question 7. Assertion(A): NH_{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): For the increase in temperatures, the new ionic equipment away from liquids as well as develops

Matter 8. Assertlon(A): HCl was a keen solid acidic whenever you are HCOOH is a failing acidic. Reasoning (R): HCI is totally ionised in the water while HCOOH is paritally ionised in the water. (a) One another A beneficial and you may R try wrong (b) A great was completely wrong but Roentgen is right (c) A good is correct however, Roentgen try incorrect (d) escort Pearland Both A and you will Roentgen is proper and Roentgen is the best cause from A Respond to: (d) Both An excellent and you will R was best and you may R is the best cause off A

Matter nine. Cause (R): The brand new dissociation out of liquid try an endothermic effect. (a) One another A beneficial and Roentgen is actually best and you will R ‘s the proper explanation out of A good (b) An effective is right but Roentgen are completely wrong (c) An excellent are incorrect however, R is right (d) Each other An effective and you can Roentgen is actually incorrect Address: (a) One another An excellent and you may Roentgen try right and you will Roentgen ‘s the correct factor off An excellent

Concern 10. Assertion(A): When dilution grows, the level of dissociation out of weak electrolyte plus increases. Reasoning (R): The level of dissociation a try inversely proportional in order to concentration c. If the dilution grows by one hundred moments, the newest dissociation increases by 10 minutes. (a) One another A beneficial and you can R is actually proper and Roentgen ‘s the best cause off A great (b) One another An excellent and you will R was incorrect (c) Good is correct however, R is actually completely wrong (d) A beneficial try incorrect however, R is correct Answer: (a) Each other A great and R was proper and you will R ‘s the best cause out-of An effective

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