O, ROH are typical samples of Lewis basics
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
Question 7. Assertion(A): NHstep 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. Matter 8. Assertlon(A): HCl are an enthusiastic solid acidic if you find yourself HCOOH try a deep failing acid. Reason (R): HCI is entirely ionised in water whereas HCOOH try paritally ionised in the water. (a) Both A good and Roentgen try wrong (b) An excellent was https://www.datingranking.net/escort-directory/newport-news/ wrong however, R is right (c) A great is correct however, R try incorrect (d) Each other A great and you can R try proper and you may Roentgen ‘s the proper explanation out-of A good Address: (d) Each other A beneficial and you can Roentgen is actually best and Roentgen is the best explanation regarding Good
Concern 9. Reasoning (R): The fresh new dissociation out-of h2o is actually an endothermic reaction. (a) Each other An effective and you may R is proper and Roentgen is the right cause of A beneficial (b) An excellent is correct but Roentgen are completely wrong (c) A are wrong but Roentgen is correct (d) Each other A and you may R is actually completely wrong Address: (a) Both A good and R is actually best and you may R is the best explanation out of An excellent Question ten. Assertion(A): Whenever dilution expands, the degree of dissociation out of poor electrolyte in addition to develops. Cause (R): The degree of dissociation a beneficial are inversely proportional to quantity c. In the event the dilution develops because of the 100 times, the fresh new dissociation develops of the 10 times. (a) Each other A beneficial and Roentgen are proper and Roentgen ‘s the proper need off A (b) One another A great and you can R try completely wrong (c) A beneficial is right but Roentgen are completely wrong (d) A are completely wrong but Roentgen is correct Respond to: (a) Each other An excellent and you may R try proper and Roentgen ‘s the correct explanation off A great 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 AAssertion(A): For the escalation in heat, the ionic product out of drinking water and expands
