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1
JEE Main 2022 (Online) 26th June Evening Shift
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-1
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s-block element which cannot be qualitatively confirmed by the flame test is :

A
Li
B
Na
C
Rb
D
Be
2
JEE Main 2022 (Online) 26th June Morning Shift
MCQ (Single Correct Answer)
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The correct order of melting point is :

A
Be > Mg > Ca > Sr
B
Sr > Ca > Mg > Be
C
Be > Ca > Mg > Sr
D
Be > Ca > Sr > Mg
3
JEE Main 2022 (Online) 25th June Morning Shift
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Which one of the following alkaline earth metal ions has the highest ionic mobility in its aqueous solution?

A
Be2+
B
Mg2+
C
Ca2+
D
Sr2+
4
JEE Main 2022 (Online) 24th June Evening Shift
MCQ (Single Correct Answer)
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In the industrial production of which of the following, molecular hydrogen is obtained as a byproduct?

A
NaOH
B
NaCl
C
Na metal
D
Na2CO3
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