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): Simply because preferred ion effect

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): On upsurge in temperatures, the fresh new ionic equipment off h2o and develops

Question 8. Assertlon(A): HCl try an good acidic while HCOOH is a faltering acidic. Reason (R): HCI is wholly ionised within the water while HCOOH try paritally ionised in the water. (a) One another An excellent and you will Roentgen try completely wrong (b) An excellent are completely wrong however, Roentgen is correct (c) A great is correct however, Roentgen is wrong (d) Both An excellent and you will R try right and you will Roentgen is the proper cause off Good Answer: (d) One another Good and Roentgen is proper and R is the best reasons from An excellent

Matter nine my review here. Cause (R): Brand new dissociation off liquids is actually an endothermic reaction. (a) Both A great and R is actually best and you can Roentgen ‘s the right reasons of An excellent (b) Good is correct however, R try wrong (c) An excellent are incorrect however, R is correct (d) One another An effective and you will Roentgen was completely wrong Answer: (a) Each other An excellent and Roentgen is right and you will Roentgen ‘s the best need regarding An excellent

Matter ten. Assertion(A): When dilution develops, the degree of dissociation from poor electrolyte as well as increases. Cause (R): The level of dissociation good are inversely proportional to amount c. If the dilution expands by the 100 times, the latest dissociation grows of the 10 times. (a) Each other An excellent and you can R is proper and you may Roentgen is the best explanation of An effective (b) Both A and you will R are completely wrong (c) Good is correct however, Roentgen try completely wrong (d) An excellent was incorrect however, Roentgen is correct Respond to: (a) One another A good and you will Roentgen is actually best and you may Roentgen ‘s the best need of A

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