AP EAPCET (Engineering) p-Block Elements (Groups 15-18) — practice questions
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Practice AP EAPCET (Engineering) p-Block Elements (Groups 15-18) in the app →The general outer electronic configuration of group 15 elements is:Which of the following is **not** a noble gas?Among the halogens (F, Cl, Br, I), bond dissociation enthalpy is **lowest** for:The **inert pair effect** is most pronounced in:Boiling points of hydrogen halides follow which order?Which of the following has a **see-saw** molecular geometry around the central atom?According to VSEPR theory, the shape of a molecule is determined byThe hybridisation of carbon in methane (CH₄) isWhich molecule is non-polar despite having polar bonds?The bond order of the oxygen molecule O₂ (by molecular orbital theory) isA coordinate (dative) bond differs from a normal covalent bond in thatWhich species has sp hybridisation on the central atom?As bond order increases, bond lengthAn ionic bond forms byThe shape of NH₃ is pyramidal rather than planar becauseWhich has the highest dipole moment?Among the following, which is paramagnetic?Formal charge on an atom = Group 15 elements are collectively called which family?Which group 15 element is a gas at room temperature?An NH3 molecule has three bonds and one lone pair. What is its shape?Going down group 15, how does the stability of the hydrides change?Phosphorus shows the +1 oxidation state in which acid?Arsenic, antimony and bismuth all share which crystal structure?In which group of the IUPAC system are the halogens placed?Which element is the most reactive of all elements?Teflon is made of fluorine bonded with which element?The Greek word bromos, the origin of bromine, means what?Iron heated with iodine gives which product?For an interhalogen XYn, which value of n is NOT possible?Why are interhalogens usually more reactive than X2 except F2?Which halogen is the most abundant in seawater?Which gases have very low reactivity and form group 18?Which oxidation state is NOT shown by xenon in its compounds?Which krypton compound is the most notable and easily characterised?