CSP1501 Assignment 1 2024 (Solutions)

CSP1501 Assignment 1 2024 (Solutions) Question 1 Not yet answered Marked out of 1.00 Flag question Question text Which one of the following options lists only inorganic compounds? a. Water, salts, gas b. Carbohydrates, protein, fats c. Salts, gas, carbohydrates d. Water, oxygen, carbon dioxide, electrolytes Clear my choice Question 2 Not yet answered Marked out of 1.00 Flag question Question text Select the correct symbol for Dubnium a. Db b. D c. Dm d. Du Question 3 Not yet answered Marked out of 1.00 Flag question Question text Isotopes are a. Atoms of the same element that have the same atomic number but different mass nnumbers b. Atoms of a different element that have the same atomic number but different mass numbers c. Atoms of a different element that have different atomic number but same mass numbers d. Atoms of the same element that have a different aomic number but same mass numbers Clear my choice Question 4 Not yet answered Marked out of 1.00 Flag question Question text Aluminium has an atomic number of 14 a. True b. False Clear my choice Question 5 Not yet answered Marked out of 1.00 Flag question Question text Which of the following elements is a non-metal? a. Aluminium b. Chlorine c. Sodium d. Magnesium Clear my choice Question 6 Not yet answered Marked out of 1.00 Flag question Question text 1H1, 1H2, and 1H3 are all a. Group members b. Anisotropies c. Isotopes d. Allotropes Question 7 Not yet answered Marked out of 1.00 Flag question Question text This is a simple method of separating an insoluble solid from a liquid. a. Filtration b. Fractional distillation c. Decanting d. Evaporation Clear my choice Question 8 Not yet answered Marked out of 1.00 Flag question Question text One of the following is the property of acids a. Acids does not give hydrogen ions off when added to reactive metals b. Acids give oxygen ions off when added to reactive agents c. Acids give hydrogen ions off when added to reactive agents d. Acids turn litmus paper from red to blue Question 9 Not yet answered Marked out of 1.00 Flag question Question text Noble gases are energetically very unstable a. True b. False Clear my choice Question 10 Not yet answered Marked out of 1.00 Flag question Question text Gases and liquids share the property of __________. a. indefinite shape b. the unrestricted motion of particles c. high compressibility d. definite volume Question 13 Not yet answered Marked out of 1.00 Flag question Question text In a gas, the particles are free to move anywhere and the distance between particles are large a. False b. True Clear my choice Question 14 Not yet answered Marked out of 1.00 Flag question Question text Chlorine is a pale-yellow gas with a very pungent odour a. True b. False Question 15 Not yet answered Marked out of 1.00 Flag question Question text Atoms are held together by one of three types of bonds, namely ionic bonds, covalent bonds or metallic bonds a. False b. True Clear my choice Question 16 Not yet answered Marked out of 1.00 Flag question Question text A compound can be defined as a homogenous substance composed of two or more different elements, held together in a fixed mass proportion by means of chemical bonds. a. False b. True Question 17 Not yet answered Marked out of 1.00 Flag question Question text What is not characteristic of a mixture? a. Cannot be broken into simpler substances b. The components of mixtures keep their original properties c. Mixtures can be either homogenous or heterogenous d. Mixtures do not have a constant composition Clear my choice Question 18 Not yet answered Marked out of 1.00 Flag question Question text Which of the following statements is not true about elements of the periodic table a. Elements in Group I of the periodic table have a valency of 1 b. Elements in Group III of the periodic table have a valency of 4 c. Elements in Group II of the periodic table have a valency of 2 d. Elements in Group IV of the periodic table have a valency of 4 Question 19 Not yet answered Marked out of 1.00 Flag question Question text Gases can be compressed because: a. molecules of a gas are spread out and can be squeezed together b. molecules of gas are smaller c. gases do not contain molecules d. there is a small distance between the particles Clear my choice Question 20 Not yet answered Marked out of 1.00 Flag question Question text Electrons are the a. Particles with the same charge as neutrons b. Only particles seen in the nucleus of the atom. c. Particles that are found in the shells of the atom. d. The particles that determine the mass of an atom. Question 21 Not yet answered Marked out of 1.00 Flag question Question text In a liquid the particles are quiet close together but not as closely packed as in a solid. The forces of attraction between the particles in a liquid are weaker than in a solid. a. False b. True Clear my choice Question 22 Not yet answered Marked out of 1.00 Flag question Question text Sulphuric acid does not occur naturally and has many important uses a. True b. False Question 23 Not yet answered Marked out of 1.00 Flag question Question text One of the following is not considered as main principle of the kinetic theory of matter a. All matter is made up of very small, invisible, moving particles. b. All particles are stagnant. The higher the temperature the slower the particles move. c. Heavy particles move more slowly than light particles, at a given temperature d. In a solid, the particles attract one another strongly Clear my choice Question 24 Not yet answered Marked out of 1.00 Flag question Question text The nucleus of an atom contains. a. Electrons and protons. b. Clouds of gases and many other substances c. Neutrons and protons. d. Protons and similar other particles. Question 25 Not yet answered Marked out of 1.00 Flag question Question text When atoms become ionised, they either loss or gain electrons, making them positive or negative. a. False b. True Clear my choice Question 26 Not yet answered Marked out of 1.00 Flag question Question text Whatever is oxidised is the reducing agent. And whatever is reduced is the oxidising agent a. True b. False Question 27 Not yet answered Marked out of 1.00 Flag question Question text Of the following, only __________ is a chemical reaction. a. dropping a penny into a glass of water b. crushing of stone c. water in the air turns into snow. d. bread dough becomes fresh bread in an oven. Clear my choice Question 28 Not yet answered Marked out of 1.00 Flag question Question text A bottle of tomato sauce holds 1.75 litres. How many millilitres does it hold? a. 1750 ml b. 7500 ml c. 175 ml d. 0.0075 ml Question 29 Not yet answered Marked out of 1.00 Flag question Question text A physical entity of an element that can exist independently and still have the properties of that element. a. matter b. electrons c. molecules d. atom Clear my choice Question 30 Not yet answered Marked out of 1.00 Flag question Question text Orbitals represents those spaces in which electrons are most likely to be moving a. False b. True Question 31 Not yet answered Marked out of 1.00 Flag question Question text Covalent bonds are formed by, a. Non-metals alone b. Metals and non-metals c. Transfer of electrons d. Sharing of electrons Clear my choice Question 32 Not yet answered Marked out of 1.00 Flag question Question text Acid oxides are formed when oxygen combines with a non-metal a. True b. False Question 33 Not yet answered Marked out of 1.00 Flag question Question text Which of the following pairs of substances may best be separated through distillation? a. Water and alcohol b. Sand and salt c. Water and oil d. Sand and oil Clear my choice Question 34 Not yet answered Marked out of 1.00 Flag question Question text Which one of the following would you use to separate sand from iron filings? a. a bar magnet b. chromatography paper c. a distillation apparatus d. filter paper Question 35 Not yet answered Marked out of 1.00 Flag question Question text Which one of the following separation techniques will separate salt from a mixture of salt and water? a. Filtration b. Separation using sieves or strainers c. Decanting d. Evaporation Clear my choice Question 36 Not yet answered Marked out of 1.00 Flag question Question text The atomic number a. Is equal to the number of protons b. Is equal to neutrons plus protons c. Is greater than the mass number d. Is similar to the mass number Question 41 Not yet answered Marked out of 1.00 Flag question Question text Strong acids such as concentrated nitric acids or concentrated sulphuric acid are extremely corrosive a. False b. True Clear my choice Question 42 Not yet answered Marked out of 1.00 Flag question Question text A sodium atom can quickly form an ionic bond with a. A neon atom. b. A lead atom. c. A carbon atom. d. A chlorine atom. Question 43 Not yet answered Marked out of 1.00 Flag question Question text Matter is anything that a. Occupies a space and is not liquid. b. Occupies a space. c. Occupies space and has volume. d. Occupies a space and has a mass. Clear my choice Question 44 Not yet answered Marked out of 1.00 Flag question Question text 3Nacl2. How many atom(s) of sodium are there in the formula a. 3 b. 1 c. 6 d. 2 Question 47 Not yet answered Marked out of 1.00 Flag question Question text Isotopes are atoms of a different element that have different atomic number but the same mass numbers. a. False b. True Clear my choice Question 48 Not yet answered Marked out of 1.00 Flag question Question text The separation technique that involves heating a solution until the liquid changes into a gaseous state, leaving behind a solid is known as a. Filtration b. Decanting c. Freezing d. Evaporation Question 49 Not yet answered Marked out of 1.00 Flag question Question text The following formula is a formula of Citric acid a. C6HO b. C6H8O7 c. C6HO6 d. C6H7O Clear my choice Question 50 Not yet answered Marked out of 1.00 Flag question Question text Elements in which the s and p orbitals in the outer shell are entirely filled are: a. Noble gases. b. Both liquid and solid elements. c. All solid elements. d. Solid, liquid, and gas