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1
JEE Main 2019 (Online) 11th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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The amphoteric hydroxide is :
A
Ca(OH)2
B
Be(OH)2
C
Mg(OH)2
D
Sr(OH)2
2
JEE Main 2019 (Online) 10th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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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
3
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
4
JEE Main 2019 (Online) 9th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The metal that forms nitride by reacting directly with N2 of air, is :
A
K
B
Li
C
Rb
D
Cs
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