JEE Main 2016 (Offline) | s-Block Elements Question 93 | Chemistry

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JEE Main 2016 (Offline)

MCQ (Single Correct Answer)

-1

Which of the following atoms has the highest first ionization energy?

JEE Main 2016 (Offline)

MCQ (Single Correct Answer)

-1

The main oxides formed on combustion of Li, Na and K in excess of air are, respectively:

LiO₂, Na₂O₂ and K₂O

Li₂O₂, Na₂O₂ and KO₂

Li₂O, Na₂O₂ and KO₂

Li₂O, Na₂O and KO₂

JEE Main 2016 (Offline)

MCQ (Single Correct Answer)

-1

The hottest region of Bunsen flame shown in the figure below is :

JEE Main 2016 (Offline) Chemistry - s-Block Elements Question 92 English

region $$1$$

region $$2$$

region $$3$$

region $$4$$

JEE Main 2015 (Offline)

MCQ (Single Correct Answer)

-1

Which one of the following alkaline earth metal sulphates has its hydration enthalpy greater than its lattice enthalpy?

BeSO₄

BaSO₄

SrSO₄

CaSO₄

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