1331. Which of the following cannot be a Bronsted acid :

A. HCO3 *
B. HCOO
C. H2PO3
D. H3O+

1332. Conjuage acid of amide ion is :

A. N+H4
B. NH3 *
C. N+H2
D. NH2-

1333. Which of the following Compounds is not protonic acid ?

A. H2SO4
B. H3BO3 *
C. H3PO4
D. H2SO3

1334. Which of the following is tribasic acid ?

A. H3SO3
B. H3PO2
C. H3PO4 *
D. CH3 COOH

1335. Conjugate base of hydrazoic acid (NH3) is :

A. HN3
B. N3 *
C. N-3
D. N-2

1336. Correct order of acid strenght of the following acids are :

1.HCN 2. HCOOH 3. CH3COOH 4. HCL

A. 4>3>2>1
B. 4>2>3>1 *
C. 4>3>1>2
D. 4>3>2>1

1337. Conjugate base of sulfuric acid is :

A. HSO4 *
B. SO4 2-
C. H2S
D. Both A and B

1338. Conjugate base of OH is :

A. H2O
B. O2- *
C. O
D. O2

1339. 20 g of Naoh is dissolved in 5L of solution .The Poh of solution is :

A. 2
B. 1 *
C. 5
D. 3

1340. Two solutions of HCl are prepared .PH of solution A and B are 3 and 1 respectively which statement is correct ?

A. Solution A is two times more acidic than B
B. Solution A is 100 times more acidic than B
C. Solution B is two times more acidic than A
D. Solution B has a 100-fold higher acidity than solution A *