JEE Main 2019 (Online) 11th January Evening Slot | s-Block Elements Question 99 | Chemistry

Item I		Item II
(i)	Na₂CO₃.10H₂O	(A)	Portland cement ingredient
(ii)	Mg(HCO₃)₂	(B)	Castner-Kellner process
(iii)	NaOH	(C)	Solvay process
(iv)	Ca₃Al₂O₆	(D)	Temporary hardness

(i)$$ \to $$(D); (ii)$$ \to $$(A); (iii)$$ \to $$(B); (iv)$$ \to $$(C)

(i)$$ \to $$(B); (ii)$$ \to $$(C); (iii)$$ \to $$(A); (iv)$$ \to $$(D)

(i)$$ \to $$(C); (ii)$$ \to $$(B); (iii)$$ \to $$(D); (iv)$$ \to $$(A)

(i)$$ \to $$(C); (ii)$$ \to $$(D); (iii)$$ \to $$(B); (iv)$$ \to $$(A)

JEE Main 2019 (Online) 11th January Morning Slot

MCQ (Single Correct Answer)

-1

Out of Syllabus

The amphoteric hydroxide is :

Ca(OH)₂

Be(OH)₂

Mg(OH)₂

Sr(OH)₂

JEE Main 2019 (Online) 10th January Evening Slot

MCQ (Single Correct Answer)

-1

Out of Syllabus

Sodium metal on dissolution in liquid ammonia gives a deep blue solution due to the formation of :

ammoniated electrons

sodamide

sodium-ammonia complex

sodium ion-ammonia complex

JEE Main 2019 (Online) 10th January Morning Slot

MCQ (Single Correct Answer)

-1

Out of Syllabus

The metal used for marking X–ray tube window is :

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