Classification of Matter Quizz 1. In a compound, the elements are _______ in a _______ proportion by mass. diffused, variable chemically combined, fixed mixed, direct physically combined, anyQuestion 1 of 102. Which of the following statement is true for elements? They are pure substances. They cannot be broken down into simpler substances. They are classified into metals, non metals and metalloids All of the aboveQuestion 2 of 103. Which of the following is not an example of heterogeneous mixture? Oil in water Salt in water Mixture of sulphur powder and iron fillings Gun powderQuestion 3 of 104. Which of the following is not true for a mixture? A mixture can be separated into its constituents. Energy is not given out in the preparation of a mixture. A mixture has a fixed melting point. The composition of a mixture is variable.Question 4 of 105. A compound is a _______ substance made up of _______ . impure; two or more simpler substances soft; only one kind of atoms hard; only one element pure; two or more elementsQuestion 5 of 106. Take a mixture of iron fillings and sulphur powder in a test tube. Heat the test tube strongly till the mixture becomes red hot. Let the mixture cool and add dil. sulphuric acid to it. Which statement is true for the content of the test tube after the experiment? Show the property of magnetism. A physical change takes place. Colourless gas with the smell of rotten eggs. Colourless and odorless gas evolves.Question 6 of 107. Which of the following is not a pure substance? Mercury Distilled water Nitric acid Tap waterQuestion 7 of 108. Pulses containing stones is an example of: A compound An element Heterogeneous mixture Homogeneous mixtureQuestion 8 of 109. Which one of the following elements is a non-metal? Cadmium Phosphorus Nickel TungstenQuestion 9 of 1010. Sugar solution is an example of: An element A compound A mixture All of the above.Question 10 of 10 Loading…
