JEE Advanced 2020 Concept Recapitulation Test 4 Paper 2

Question : 20 of 54

Marks: +1, -0

Select the incorrect statement(s):

Second period of modern periodic table contains maximum number of gaseous elements and sixth period contains maximum number of solid elements.
SrSO4 is the most stable towards heat among all the sulphates of alkaline earth metals.
Molten hydrides of all alkali metals liberate H2 gas at anode on electrolysis.
The coordination number of Zn in Wurtzite structure is 4.

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