Chemistry · 2019
JEE Main · 11 January 2019, Shift 2 · Q44
Match the following items in column I with the corresponding items in column II. (i) Na_2 CO_3 · 10 H_2 O (ii) Mg ( HCO_3)_2 (iii) NaOH (iv) Ca_3…
Match the following items in column I with the corresponding items in column II.
\section*{Column I}
(i)
$\displaystyle \mathrm{Na}_2 \mathrm{CO}_3 \cdot 10 \mathrm{H}_2 \mathrm{O}$
(ii)
$\displaystyle \mathrm{Mg}\left(\mathrm{HCO}_3\right)_2$
(iii)
NaOH
(iv)
$\displaystyle \mathrm{Ca}_3 \mathrm{Al}_2 \mathrm{O}_6$
\section*{Column II}
(A)
Portland cement ingredient
(B)
Castner-Kellner process
(C)
Solvay process
(D)
Temporary hardness
Official answer
(3)
(i) →(C); (ii)→(D); (iii)→(B); (iv)→(A)
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JEE Main 2019 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.