Chemistry - Comprehensive Mock Test 12

Question 111 Medium

For a certain reaction PV = 2 dm3 atm and volume is 4 dm3 then corresponding pressure is ?

A) 1 atm B) 4 atm C) 0.5 atm D) 2 atm

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Question 112 Medium

Mathematical expression that describes Boyle's law is ?

A) PV = constant B) V * constant = P C) P * constant = V D) V ⁄ P = constant

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Question 113 Medium

Average kinetic energy of gas molecules is directly proportional to ?

A) T2 B) √T C) T D) 2T

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Question 114 Medium

At constant pressure average kinetic energy of gas molecules increases 2 times if ?

A) temperature is increased by 2 times B) temperature is halved C) no change in temperature D) none of above

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Question 115 Medium

Temperature at which solid starts melting is called ?

A) boiling point B) freezing point C) melting point D) none of above

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Question 116 Medium

Conversion of a liquid to a gas at all temperatures is called ?

A) sublimation B) evaporation C) condensation D) boiling

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Question 117 Medium

Process in which solid changes directly in to vapors without changing in liquid state is called ?

A) condensation B) evaporation C) boiling D) sublimation

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Question 118 Easy

In periodic table, helium is placed at ?

A) top left corner B) bottom right corner C) bottom left corner D) top right corner

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Question 119 Medium

Both of elements of 1st period contains valence electrons in ?

A) M shell B) N shell C) K shell D) S shell

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Question 120 Medium

Number of protons and neutrons in nucleus if atomic number of element is 17 and mass number is 35, is ?

A) 17 and 18 B) 17 and 19 C) 17 and 20 D) 17 and 21

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