Punjab 9th Class Chemistry Chapter 5 Physical States of Matter Mcqs Test Online Punjab 9th Class Chemistry Chapter 5 Physical States of Matter Punjab 9th Class 5Chemistry 555555555 Question 1 of 10Chemistry 1. A liquid boils when its vapour pressure becomes equal to 760 cmHg 1 Pa 0.1atm.101.325kPa Question 1 of 10Question 2 of 10 2. The following table shows the melting and boiling points of four substances. Which substance is a solid at room temperature? SubstanceMelting point (0°C)Boiling Point(0°C)A-186-183B-6120C0100D36130CBDAQuestion 2 of 10Question 3 of 10 3. Water normally boils at 100°C, but it is possible to boil water at room temperature. What variable would you have to change to do this: None of theseIncrease external pressure Decrease external pressure Decrease temperature Question 3 of 10Question 4 of 10 4. Which statement about the particles of a solid is not correct? The forces of attraction between the particles are strong They move at great speeds There is a very little space between the particles They are arranged in regular patterns Question 4 of 10Question 5 of 10 5. Consider the following table: Sr. NoXYX/Y11.002730.003721.373730.003731.734730.003742.105730.0037Which of the following relationships does this table represent?x = y x ∞ 1/y x ∞ y x = 1/yQuestion 5 of 10Question 6 of 10 6. Bromine has a melting point of -7°C and a boiling point of 59°C. What is the physical state of bromine at 100°C. Gas Solid Cannot be predicatedLiquid Question 6 of 10Question 7 of 10 7. Acetone has characteristic fragrant odour and is used to make finger nail polish. It melts at -94°C and boils at 56°C. What is the physical state of acetone at 25°C and 1atm.? Liquid Gas Solid Cannot be predicatedQuestion 7 of 10Question 8 of 10 8. Which is not the property of crystalline solids? Are generally softHave orderly arrangements of particles Have repeating three dimensional arrangement of particles Have well defined shape Question 8 of 10Question 9 of 10 9. In which of the following processes speed of the particles decreases? Melting Boiling Sublimation CondensationQuestion 9 of 10Question 10 of 10 10. The boiling points of some elements are given below: (a) Argon → -186°C (b) Nitrogen → -196°C (c) Oxygen → -183°C (d) Xenon → -108°C A mixture of the above gases at -210°C was heated by 20°C. Which of the element will still be in the liquid state?Oxygen only Xenon onlyArgon, nitrogen and xenon Argon, oxygen and xenon Question 10 of 10 Loading... Test By Subject Punjab Test By Topics 9th Class Chemistry You Can Learn and Gain more Knowledge through our Online Quiz and Testing system Just Search your desired Preparation subject at Gotest.