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1
JEE Main 2023 (Online) 1st February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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Choose the correct statement(s) :

A. Beryllium oxide is purely acidic in nature.

B. Beryllium carbonate is kept in the atmosphere of $$\mathrm{CO_2}$$.

C. Beryllium sulphate is readily soluble in water.

D. Beryllium shows anomalous behaviour.

Choose the correct answer from the options given below :

A
A only
B
B, C and D only
C
A, B and C only
D
A and B only
2
JEE Main 2023 (Online) 31st January Evening Shift
MCQ (Single Correct Answer)
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-1
Out of Syllabus
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The element playing significant role in neuromuscular function and interneuronal transmission is :
A
Be
B
$\mathrm{Ca}$
C
$\mathrm{Mg}$
D
$\mathrm{Li}$
3
JEE Main 2023 (Online) 30th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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Chlorides of which metal are soluble in organic solvents :
A
K
B
Be
C
Ca
D
Mg
4
JEE Main 2023 (Online) 30th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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Which of the following reaction is correct?
A
$4 \mathrm{LiNO}_{3} \stackrel{\Delta}{\longrightarrow} 2 \mathrm{Li}_{2} \mathrm{O}+4 \mathrm{NO}_{2}+\mathrm{O}_{2}$
B
$2 \mathrm{LiNO}_{3} \longrightarrow 2 \mathrm{Li}+2 \mathrm{NO}_{2}+\mathrm{O}_{2}$
C
$4 \mathrm{LiNO}_{3} \stackrel{\Delta}{\longrightarrow} 2 \mathrm{Li}_{2} \mathrm{O}+2 \mathrm{~N}_{2} \mathrm{O}_{4}+\mathrm{O}_{2}$
D
$2 \mathrm{LiNO}_{3} \stackrel{\Delta}{\longrightarrow} 2 \mathrm{NaNO}_{2}+\mathrm{O}_{2}$
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