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 *