Tamil Nadu SSLC (Class 10) Periodic Classification of Elements — practice questions
19 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice Tamil Nadu SSLC (Class 10) Periodic Classification of Elements in the app →The modern periodic law states that the properties of elements are a periodic function of which property?How many groups (vertical columns) are there in the modern periodic table?Which family of elements occupies Group 1 of the modern periodic table?Which scientist discovered the property atomic number that became the basis of the modern periodic law?As one moves from left to right across a period, how does the atomic radius of the elements change?The mineral from which a metal can be readily and economically extracted on a large scale is called a/an:How does ionisation energy generally change on moving down a group in the periodic table?Why is the size of a cation always smaller than its parent neutral atom?The covalent radius of a hydrogen atom, given that the distance between the two nuclei in an H2 molecule is 0.Which separation method is most suitable for concentrating a light sulphide ore such as zinc blende (ZnS)?A substance added to an ore to lower the fusion temperature and combine with the gangue is called a:In the modern periodic table, the sixth period (atomic numbers 55 to 86) contains how many elements?Which of these alloys is a non-ferrous copper alloy made of copper and zinc?In the metallurgy of iron, the charge of roasted ore, coke and limestone is taken in which ratio in the blast In Mendeleev's atomic-mass arrangement, argon (39.95 amu) was placed before potassium (39.10 amu). What did thUsing electronegativity values F = 4.0 and Na = 0.9 (approx 1.0), the Na-F bond is best described as:During the smelting of iron in the blast furnace, what is the main role of the limestone (CaCO3) added to the Why does dilute or concentrated nitric acid fail to react vigorously with aluminium metal?In cathodic protection against corrosion, the metal that is deliberately attached to corrode in place of the p