CBSE Class 11 c11periodicgenesis — practice questions
16 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 11 c11periodicgenesis in the app →Per NCERT §3.2, Dobereiner's LAW OF TRIADS (1829) said which of the following about a triad of three elements?Per NCERT §3.2, John Newlands' LAW OF OCTAVES (1865) noted what about elements arranged by increasing atomic wPer NCERT §3.2, Mendeleev's Periodic Law (1869) stated the properties of elements are a PERIODIC FUNCTION of wPer NCERT §3.2 + Table 3.3, Mendeleev predicted the existence of 'Eka-aluminium' and 'Eka-silicon' — which latPer NCERT §3.3, the MODERN periodic law (post-Moseley 1913) states that properties of elements are a periodic Per NCERT §3.3, Henry Moseley's 1913 work was based on plotting which quantity vs atomic number Z to obtain a Per NCERT §3.3, the long form of the periodic table contains how many periods, and the 6th + 7th periods wouldPer NCERT §3.3, the IUPAC system numbers the groups in the modern table from which range, replacing the older Per NCERT Table 3.4, in IUPAC systematic nomenclature for Z > 100, what are the digit roots for 1, 2 and 0 resPer NCERT Problem 3.1, the IUPAC systematic name + symbol for the element with atomic number 120 are which?Per NCERT Table 3.5, the IUPAC OFFICIAL name + symbol for Z = 104 is which?Per NCERT §3.3 note, how many naturally occurring elements does the Periodic Law currently apply to (includingThe 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: