The decreasing order of the second ionization energy of K, Ca and Ba is (At. Nos. K = 19, Ca = 20, Ba = 56)
K > Ca > Ba
Ca > Ba > K
Ba > K > Ca
K > Ba > Ca
Acid strength E.N
order of Acid strength = Cl2O7 > SO3 > P4O10
The correct decreasing order of atomic size among the following species is : Ar,
NextWhich of the following is not a Doebriner triad-
(A), (B) and (C) are elements in the second short period. Oxide of (A) is ionic, that of (B) is amph
HardThe basic character of MgO, SrO, K₂O and NiO increases in the order -
HardArrange into the order of increasing basicity (NO₂, K₂O, ZnO) -
HardArrange the following hydrides in their increasing acid strength [CH₄, H₂S, PH₃ and SiH₄] -
HardConsider the M(OH)₃ formed by all the group 13 elements. The correct sequence of acidic strength of
HardThe correct order regarding the electro-negativity of hybrid orbitals of carbon is ?
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