Question 6. Assertion(A): SiFcuatro 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
Cause (R): For the reason that prominent ion perception
Question 7. Assertion(A): NHstep 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): On the increase in temperatures, brand new ionic tool regarding liquid including expands
Question 8. Assertlon(A): HCl are a keen strong acidic while HCOOH is a weak acidic. Reason (R): HCI is entirely ionised within the water whereas HCOOH try paritally ionised in water. (a) Each other A great and you may R was completely wrong (b) An excellent are wrong but Roentgen is correct (c) A great is correct but R try completely wrong (d) One another A great and you may Roentgen are correct and you may R is the right need out of A great Address: (d) Both An effective and R is actually proper and R is the best reason out of An excellent
Question nine. Reasoning (R): The fresh dissociation off water was an endothermic reaction. (a) Each other A and you will R are correct and R is the best factor out-of An effective (b) An excellent is correct but R is completely wrong (c) An excellent is actually incorrect but Roentgen is correct (d) One another Good and Roentgen is completely wrong Answer: (a) Both A and you may R was right and R 's the proper reasons out of A
Concern ten. Assertion(A): When dilution grows, the degree of dissociation of weak electrolyte also increases. Reasoning (R): The amount of dissociation a beneficial was inversely proportional to focus c. In the event that dilution expands from the a hundred moments, the fresh new dissociation grows by the 10 times. (a) One another A great and you can Roentgen is proper and you may R 's the Hialeah escort service correct reason from A beneficial (b) Each other Good and you may R is actually incorrect (c) A beneficial is right however, Roentgen are incorrect (d) A great is actually wrong but R is right Answer: (a) One another A and you can R was correct and you may R is the correct need out-of A good
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
