STOICHIOMETRY QUIZ

Elements in a periodic table are arranged in order of their

Metallic characteristics

Atomic weight

Mass number

Atomic number

TRUE ANSWER : ?
YOUR ANSWER : ?

Kinetic theory of gases stipulates that, the

None of these

Molecules possess appreciable volume

Energy is lost during molecular collisions

Absolute temperature is a measure of the kinetic energy of molecules

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ chart is a graph related to Antonie equation.

Cox

Enthalpy-concentration

Ostwald

Mollier's

TRUE ANSWER : ?
YOUR ANSWER : ?

In physical adsorption, as compared to chemisorption, the

Rate of adsorption is controlled by the resistance to surface reaction

Activation energy is very high

Quantity adsorbed per unit mass is higher

Heat of adsorption is very large

TRUE ANSWER : ?
YOUR ANSWER : ?

The forces causing the vaporisation of liquid are derived from the Kinetic energy of translation of its molecules. The heat of vaporisation

Both B & C

Becomes zero at the critical point

Increases with pressure rise

Decreases with increasing pressure

TRUE ANSWER : ?
YOUR ANSWER : ?

1 gm mole of methane (CH₄) contains

6.02 x 1023 atoms of hydrogen

4 gm atoms of hydrogen

3.01 x 1023 molecules of methane

3 gms of carbon

TRUE ANSWER : ?
YOUR ANSWER : ?

6 gms of magnesium (atomic weight = 24), reacts with excess of an acid, the amount of H₂ produced will be __________ gm. gm.

1

3

5

0.5

TRUE ANSWER : ?
YOUR ANSWER : ?

The hydroxyl ion (OH?) concentration in a solution having pH value 3 will be

10??

TRUE ANSWER : ?
YOUR ANSWER : ?

The vapour pressure of water is given by, in Psat = A - (5000/T), where A is a constant, Psat is the vapour pressure in atm. and T is the temperature in K.The vapor pressure of water in atm. at 50°C is approximately

0.11

0.09

0.07

0.13

TRUE ANSWER : ?
YOUR ANSWER : ?

Vapor pressure of water at 100°C is about __________ bar.

101.3

0.1013

1.013

10.13

TRUE ANSWER : ?
YOUR ANSWER : ?

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