This chapter is currently out of syllabus
1
JEE Main 2019 (Online) 11th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Match the following items in column I with the corresponding items in column II.

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
A
(i)$$ \to $$(D); (ii)$$ \to $$(A); (iii)$$ \to $$(B); (iv)$$ \to $$(C)
B
(i)$$ \to $$(B); (ii)$$ \to $$(C); (iii)$$ \to $$(A); (iv)$$ \to $$(D)
C
(i)$$ \to $$(C); (ii)$$ \to $$(B); (iii)$$ \to $$(D); (iv)$$ \to $$(A)
D
(i)$$ \to $$(C); (ii)$$ \to $$(D); (iii)$$ \to $$(B); (iv)$$ \to $$(A)
2
JEE Main 2019 (Online) 11th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The amphoteric hydroxide is :
A
Ca(OH)2
B
Be(OH)2
C
Mg(OH)2
D
Sr(OH)2
3
JEE Main 2019 (Online) 10th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Sodium metal on dissolution in liquid ammonia gives a deep blue solution due to the formation of :
A
ammoniated electrons
B
sodamide
C
sodium-ammonia complex
D
sodium ion-ammonia complex
4
JEE Main 2019 (Online) 10th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The metal used for marking X–ray tube window is :
A
Ca
B
Na
C
Mg
D
Be
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