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O, ROH are typical examples of Lewis bases

O, ROH are typical examples of Lewis bases

Question 6. Assertion(A): SiF4 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

Reason (R): This is due to preferred ion impression

Question 7. Assertion(A): NHstep 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 Glendale escort service 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): To your upsurge in temperature, new ionic device regarding water plus increases

Matter 8. Assertlon(A): HCl are an enthusiastic solid acidic whenever you are HCOOH was a failure acid. Reason (R): HCI is completely ionised in water whereas HCOOH is paritally ionised in the water. (a) Each other An effective and you may Roentgen was wrong (b) Good is actually incorrect however, R is right (c) A beneficial is right however, R try wrong (d) Both An effective and you may R are best and you can Roentgen ‘s the best cause regarding A beneficial Answer: (d) Both A great and you may R is actually proper and Roentgen is the correct reason out-of A beneficial

Concern nine. Need (R): New dissociation out-of liquids are an enthusiastic endothermic response. (a) One another A great and Roentgen try right and Roentgen is the proper cause from A (b) Good is correct but Roentgen was wrong (c) A good are wrong but Roentgen is correct (d) Both An effective and you may R try completely wrong Answer: (a) One another Good and R try proper and you can Roentgen is the right factor away from Good

Matter ten. Assertion(A): When dilution expands, the level of dissociation out-of weakened electrolyte along with develops. Need (R): The level of dissociation a great is inversely proportional in order to amount c. In the event the dilution grows of the one hundred minutes, the brand new dissociation expands of the 10 times. (a) Each other An excellent and Roentgen is actually proper and you may Roentgen ‘s the right factor of Good (b) Both Good and Roentgen was wrong (c) Good is right however, Roentgen is actually incorrect (d) A is wrong however, R is correct Answer: (a) One another A and Roentgen is proper and you can Roentgen is the proper reasons of 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 A

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