The highest temperature at which a substance can exist as a liquid is called its______________?
A. Critical temperature
B. Standard temperature
C. Absolute temperature
D. Upper consulate temperature
Submitted by :- Jamil Ahmed
CHEMISTRY
Prepare for your upcoming test with a comprehensive collection of Chemistry multiple-choice questions (MCQs), ranging from basic to advanced topics. These Chemistry MCQs cover various sections of the subject, providing you with valuable practice and boosting your chances of scoring well in the Chemistry portion of the test. Whether you’re a student or a job seeker preparing for exams, these MCQs will prove beneficial for your test preparation.
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The spreading of fragrance or scent in air is due to_______________?
A. Diffusion
B. Effusion
C. Attraction with air
D. Low density
Submitted by :- Jamil Ahmed
The partial pressure exerted by the water vapours is called_______________?
A. Surface tension
B. Aqueous tension
C. Vapour pressure
D. Hydraulic pressure
Submitted by :- Jamil Ahmed
For a gas where volume and pressures are 1dm3 and 2 atm respectively what should be its new volume when pressure is increased to 6 atm at constant temperature ?
A. 1/2dm3
B. 1/3dm3
C. 1/4dm3
D. 2/3dm3
Submitted by :- Jamil Ahmed
What is the abundant form of matter on earth ?
A. Gas
B. Liquid
C. Solid
D. Plasma
Submitted by :- Jamil Ahmed
Which of the following option is incorrect about gases ?
A. All molecules move with same speed
B. All molecules behave independently
C. PV / RT = n
D. All gases cannot be liquefied through Linds Method
Submitted by :- Jamil Ahmed
Which one of the following aqueous solutions will be basic ?
A. NaCI
B. Na2SO4
C. Na2CO3
D. FeCl3
Submitted by :- Jamil Ahmed
For a reaction involving only gases at 25?C the equilibrium constant can be expressed in terms of molarity Ke or partial pressure Kp. Which is true about the numerical value of Kp ?
A. Kc is generally greaer than Kp
B. Kc is generally less than Kp
C. Kc is generally equal to Kp
D. Kc is equal to Kp if the total moles of reactants and products are equal
Submitted by :- Jamil Ahmed
Which of the following will not change the concentration of ammonia at the equilibrium ?
A. Increase of pressure
B. Increase of volume
C. Addition of catalyst
D. Decrease of temperature
Submitted by :- Jamil Ahmed
If a buffer solution of higher pH than seven is to be made we use__________?
A. Strong acid and strong base
B. Weak acid and strong base
C. Weak acid and strong base
D. Weak acid and its salt with strong base
Submitted by :- Jamil Ahmed