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WorksheetsChemistry 10
Total questions: 10
Worksheet time: 9mins
Which of the following procedures would you use to measure accurately 25.6 cm3 of 1.0 mol per dm3 hydrochloric acid?
A. Weigh 25.6 g of the acid in an empty beaker.
B. Measure the volume of acid solution using a pipette.
C. Measure the volume of acid solution with a measuring cylinder
D. Collect the acid solution from a burrete
The melting points of water and sodium nitrate are 0°C and 308°C respectively. Which of the following shows the likely freezing point of 100 cm3 of 0.01 mol per dm3 aqueous sodium nitrate solution?
A. −5°C
B. 0°C
C. 5°C
D. 300°C
A series of experiments is conducted on an newly discovered substance. Which of the following observations suggests that substance is not pure?
A. It dissolves in organic liquid but not water.
B. It burns in the presence of oxygen to produce two oxides.
C. Thermal decomposition of the substances does not yield any product.
D. It boils over a wide range of temperatures.
Noble gases are inert because they have completed outer electron shells. Which of these elements isn't a noble gas?
A. Helium
B. Chlorine
C. Argon
D. Krypton
What is the most common isotope of hydrogen?
A. Deuterium
B. Tritum
C. Protium
D. Hydrogen only has one isotope!
Which of the following statements is true in terms of the kinetic particle theory?
A. Liquids and gases take the shape and volume of the containers as the particles are arranged according to the size of the container.
B. Solids and liquids are not compressible as the particles are vibrating forcefully in fixed positions.
C. Since the particles of a gas move randomly and collide with each other, they have the strongest attractive forces.
D. Particles of a solid have the least kinetic energy as they can only vibrate fixed positions.
The symbol Sb stands for stibnum or stibnite. What is the modern name of this element?
A. Seaborgium
B. Arsenic
C. Antimony
D. Tin
The acid generally stored in batteries is
A. Nitric acid
B. Sulphuric acid
C. Hydrochloric acid
D. Acetic acid
Mordants are substances that...
A. Fix colors in fabrics
B. Are very hard solids.
C. Have a bleaching action
D. Have a capacity of increasing the intensity of colors
Which of the following has the same of molecules as 60 cm3 of carbon dioxide at room temperature and pressure?
A. 0.0850 g of ammonia
B. 3.0 x 1021 atoms of oxygen
C. 25 cm3 of 0.10 mol per dm3 aqueous hydrochloric acid solution
D. 60 cm3 of ethanol liquid
