BSF Constable Chemistry — practice questions
21 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice BSF Constable Chemistry in the app →The pH value of pure water is:Protium, deuterium and tritium are all forms (isotopes) of which element?Which of the following elements is NOT a noble gas?For galvanizing iron, which of the following metals is used?In the Modern Periodic Table, the position of which element is anomalous as it can be placed in either group 1One way of dating fossils is by detecting the ratio of different ____ of the same element in the fossil materiIn which classification are the elements arranged in the order of their increasing atomic number?Which allotrope of carbon exists in the form of a geodesic globe?The chemical name of which substance is calcium sulphate hemihydrate?Which is the least reactive element belonging to group 17?Consider the statements. A. Rigidity: solids have a definite shape, liquids take the shape of their container,Which of the following metals has low density and a low melting point?Who is credited with inventing the periodic table of elements?What is the atomic mass of Calcium?When a metal reacts with water, which gas is released?Who proposed the word 'atom'?Substances whose odour changes in acidic or basic media are called:Tungsten's melting point is approximately:Which of the following metals is in liquid state at room temperature?Which of the following elements could not find a fixed place in Mendeleev's periodic table?Name the process in which a metal is attacked by surrounding substances such as moisture, acids, etc.