NEET UG c11ie_egh_en_periodic — practice questions
16 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice NEET UG c11ie_egh_en_periodic in the app →Per NCERT §3.7.1(c), the FIRST IONISATION ENTHALPY of an element X represents which process?Per NCERT §3.7.1(c), why is the FIRST ionisation enthalpy of BORON (Z=5) LESS than that of BERYLLIUM (Z=4) desPer NCERT §3.7.1(c), why is the first ionisation enthalpy of OXYGEN (Z=8) LESS than that of NITROGEN (Z=7)?Per NCERT §3.7.1(c), the GENERAL trend of first ionisation enthalpy across a period and down a group is which?Per NCERT §3.7.1(d), the ELECTRON GAIN ENTHALPY ΔₑgH represents enthalpy change for which reaction?Per NCERT Table 3.7, which element has the MOST NEGATIVE electron gain enthalpy and why is it NOT fluorine?Per NCERT §3.7.1(d), why do NOBLE GASES have LARGE POSITIVE electron gain enthalpies (e.g. He +48, Ne +116 kJ/Per NCERT §3.7.1(e) + Table 3.8, ELECTRONEGATIVITY on the Pauling scale assigns which value to FLUORINE — and Per NCERT §3.7.2(a) (valence), the VALENCE of representative (s + p block) elements equals which of the followPer NCERT Problem 3.8, predicting the formula formed by SILICON (Group 14) and BROMINE (Group 17) gives which Per NCERT §3.7.2(b) (anomalous), the DIAGONAL RELATIONSHIP refers to similarity between which pairs of period-Per NCERT §3.7.3, oxides of elements show what acid–base trend across a period?The modern periodic law arranges elements in order of:Across a period from left to right, atomic radius generally:Among Li, Na, K, Cs, the element with the highest first ionisation enthalpy is:The most electronegative element on the periodic table is: