1351. PH of human blood is :

A. 6.4
B. 7.4 *
C. 7.1
D. 5.5

1352. Acidic buffer can resist change in PH when small amount of :

A. Strong acid is added
B. Strong base is added
C. Both *
D. None

1353. Solution of which salt has highest PH?

A. CH3COOK
B. NA2CO3 *
C. NH4Cl
D. NANO3

1354. NH4Cl solution is :

A. Neutral
B. Acidic *
C. Basic
D. Amphoteric

1355. PH of a centi-molar solution of a strong monobasic acid is :

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

1356. Solution of salt of strong acid and strong base is neutral because :

A. Only cation get hydrolyzed
B. Only onion get hydrolyzed
C. Both Ions are hydrolyzed
D. Neither cation nor anion get hydrolyzed *

1357. Chemical kinetics deal with :

A. Rate of reaction
B. Factor affecting reaction rate
C. Mechanism of reaction
D. All of the above *

1358. Unit of reaction rate is :

A. Mol.L-1, Sec-1 *
B. Mol.sec-1
C. Mol.sec
D. Sec.Mol-1

1359. Rate of rxn depends upon :

A. Concentration of reactants
B. Nature of reactants
C. Temperature
D. All of these *

1360. For a chemical rxn; A>B , the rate of rxn increase four times, when the concentration of reactant A is doubled ; the order of rxn is :

A. Zero
B. First
C. Second *
D. Half