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1
JEE Main 2019 (Online) 10th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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The metal used for marking X–ray tube window is :
A
Ca
B
Na
C
Mg
D
Be
2
JEE Main 2019 (Online) 9th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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The metal that forms nitride by reacting directly with N2 of air, is :
A
K
B
Li
C
Rb
D
Cs
3
JEE Main 2019 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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The alkaline earth metal nitrate that does not crystallise with water molecules, is :
A
Mg(NO3)2
B
Sr(NO3)2
C
Ca(NO3)2
D
Ba(NO3)2
4
JEE Main 2017 (Offline)
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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Both lithium and magnesium display several similar properties due to the diagonal relationship; however, the one which is incorrect, is :
A
both form soluble bicarbonates
B
both from nitrides
C
nitrates of both Li and Mg yield NO2 and O2 on heating
D
both form basic carbonates
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