TS EAPCET (Engineering) s-Block Elements — practice questions
66 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice TS EAPCET (Engineering) s-Block Elements in the app →What is the general valence electron configuration of the alkali metals?Which crystal structure do all the alkali metals adopt?Why do alkali metal salts give characteristic flame colours?In the laboratory, alkali metals are usually stored under which liquid?Which alkali metal halide is only poorly soluble in water?Which alkali metal hydroxide is not deliquescent?Lithium shows a diagonal relationship with which element?Which stable alkali metal has a pale golden tint?How does the atomic radius of alkali metals change from Li to Cs?How does the reactivity of alkali metals change down the group?How do the melting points of alkali metals vary from lithium to caesium?Which of these alkali metals breaks the trend of density rising down the group?How does an alkali metal ion's radius compare with its parent atom?Why is the second ionisation energy of an alkali metal very high?Sodium reacts with cold water to give which products?Which anion forms when lithium reacts with oxygen at room temperature?Ionic alkali metal hydrides are often used in chemistry as what?Which alkali metal uniquely forms a stable nitride?Lithium chloride and bromide are used in which devices?Why are lithium compounds relatively covalent?Lithium iodide dissolves in organic solvents. What does this show?Caesium-137, a fission product, has a half-life of about how long?Why do alkali metal cations rarely form coordination complexes?Within a period, where does an alkali metal rank in first ionisation energy?How do alkali metal hydroxides rank in basic strength?Aluminium oxide reacts with alkali hydroxides to give which salts?An alkali metal almost always forms a cation with what charge?How many electrons does each alkaline earth metal have in its valence shell?Alkaline earth metals usually lose two electrons to form ions of what type?Which alkaline earth metal does not react with water or steam except at very high temperature?Beryllium chloride differs from the other group 2 chlorides in being what?What explains the covalent bonding in beryllium compounds?How does magnesium react with water compared with calcium?Which products form when metallic calcium is dropped into water?Which of these is a common magnesium-containing mineral?In which mineral is most barium found?Which pair are the principal minerals of strontium?Which mineral is a common source of calcium?Which compound is used to make red fireworks?What role does barium play inside vacuum tubes?Magnesium is often alloyed with which metals?Magnesium is used in the Kroll process to make which metal?James Chadwick discovered the neutron using a reaction of alpha particles with which element?Anhydrous CaCl2 absorbs air moisture to form a solution. What is this property called?In 2 Ca + O2 giving 2 X, what is X?Magnesium metal is obtained by electrolysing which molten salt?Radioactive alkaline earth isotopes collect in bone because they resemble which element?Radium-226 belongs to the decay chain of which nuclide?Which element is the only one with an even atomic number that is monoisotopic?Beryllium-8 is absent from nature because it breaks into what?Marie Curie first extracted radium from residues of which ore?How many molecules of water of crystallisation does washing soda contain?Dry air turns sodium carbonate decahydrate to the monohydrate by which process?Which sodium compound forms first from brine, ammonia and CO2 in the Solvay process?Heating sodium bicarbonate gives sodium carbonate, water and which gas?What is the only waste product of the Solvay process?Who patented the 1792 salt, sulfuric acid, limestone and coal route to soda ash?What is the crude Na2CO3 and CaS mixture of the Leblanc process called?Which waste pair made Leblanc's process worse than Solvay's?Hou's soda ash process is coupled to which industrial process?Sodium carbonate softens hard water by precipitating Ca2+ as what?In glass making, sodium carbonate acts as a flux for which compound?Sodium carbonate is a stronger base than bicarbonate but weaker than what?The cooling fizz of sherbet powder comes from what type of reaction?Unlike most metal carbonates, which carbonate dissolves in water?Sodium carbonate cleans by converting fats to water-soluble salts through what process?