1381. Which of the following is chemical method for determination of rxnrate?

A. Volumetry *
B. Spectrophotometry
C. Conductometry
D. Ph-Metry

1382. The rate of exothermic rxn_________ with increase in temperature :

A. Increase *
B. Decrease
C. First increase than decrease
D. First decrease than increase

1383. Activation energy is the :

A. Energy of transition state
B. Energy difference between transition state and reactants *
C. Energy of intermediate
D. Energy difference between two intermediates

1384. Which of the following statement is not related to collision theory :

A. Molecules must collide to do chemical rxn
B. Molecules must posses a minimum amount of energy
C. Molecules must have proper orientation
D. Collision theory is not applicable to gases *

1385. 1 molar solution of sugar in water is prepared at 25 degree centigrade . If solution is heated at 50 degree centigrade ; its molarity :

A. Increases
B. Decreases *
C. Becomes double
D. Remains constant

1386. 8 g of Naoh is dissolved in water to form 100 ml of solution. The morality of solution is :

A. 0.5 M
B. 0.2 M
C. 1 M
D. 2 M *

1387. Number of moles of KCIO3 present in 3.5 L of 0.5 M aqueous solution is :

A. 1 Mol
B. 1.25 Mol
C. 1.75 Mol *
D. 1.90 Mol

1388. 18% solution of glucose in water is prepared Molarity of solution is :

A. 1 M *
B. 2.5 M
C. 5 M
D. 10 M

1389. Normality of 1M sulfuric acid solution in water is :

A. 1 N
B. 0.5 N
C. 2 N *
D. 3 N

1390. 5.6 L of H2 and 5.6 L of N2 at STP mixed . If pressure is increased five times , What will be the mole fraction of H2 :

A. 0.25
B. 0.5 *
C. 0.75
D. 1